SMT - UHP & HP Gas Products & Consultancy …rotarex.co.uk/pdfs/merobel-cat-eng.pdf · Since 1955,...

SMT

ROTAREXGroup

MEROBEL PRODUCTS

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Since 1955, MEROBEL has specialised in the design, manufacture and sale of components dedicated to oxygen piping systems particularly in the iron and steel industry as well as glass and petrochemicals industries where the use of oxygen has developed considerably during recent years.MEROBEL has contributed widely to this development by offering to engineering companies, OEM, installers and final users a comprehensive range of products which are perfectly adapted to these applications.Today MEROBEL is a division of SMT in Genlis (France), and both companies are subsidiaries of the ROTAREX Group based in Luxembourg, MEROBEL having been taken over by Rotarex Group in 1999

HISTORY - GENERAL

all rights of change reserved

INTRODUCTION

The MEROBEL manufacturing programme includes shut-off valves, gate valves, globe valves, pressure regulators, non-return valves and isolating joints:

MANUFACTURING PROGRAMME

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INTRODUCTION

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APPLICATIONS

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PICTURES OF TYPICAL APPLICATIONS

V365 valve. Manual actuation through 90° bevel gear


Handwheel of a Merobel Valve located behind a wall

R374 valves. Manual actuation and R178. Pneumatic actuation and emergency manual actuation

R178 valves. Pneumatic actuation (single acting)

R178 valves. Manual actuation with spindle extension

Manifold DET170 2,5 Pressure regulator Isolating flange IF78

Since 1955, MEROBEL has specialised in the design, manufacture and sale of components dedicated to oxygen piping systems particularly in the iron and steel industry as well as glass and petrochemicals industries where the use of oxygen has developed considerably during recent years.MEROBEL has contributed widely to this development by offering to engineering companies, OEM, installers and final users a comprehensive range of products which are perfectly adapted to these applications.Today MEROBEL is a division of SMT in Genlis (France), and both companies are subsidiaries of the ROTAREX Group based in Luxembourg, MEROBEL having been taken over by Rotarex Group in 1999

HISTORY - GENERAL


INTRODUCTION

The MEROBEL manufacturing programme includes shut-off valves, gate valves, globe valves, pressure regulators, non-return valves and isolating joints:

MANUFACTURING PROGRAMME

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INTRODUCTION

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APPLICATIONS

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PICTURES OF TYPICAL APPLICATIONS



Handwheel of a Merobel Valve located behind a wall

R374 valves. Manual actuation and R178. Pneumatic actuation and emergency manual actuation

R178 valves. Pneumatic actuation (single acting)

R178 valves. Manual actuation with spindle extension

Manifold DET170 2,5 Pressure regulator Isolating flange IF78

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SUMMARY

INTRODUCTION

Merobel offers three series of shut - off gate valves. These are line valves whose opening is achieved by the sliding of a plate between two parallel seats. series V178 (p. 5 - 8) series V180 (p. 9 - 12) series V365 (p. 13 - 16)Pressure range from 0 to 100 barsFlange connections from 50mm (2") to 350mm (14"). Larger diameters available upon request.

GATE VALVES (P. 5 - 16)

Merobel offers two series of globe valves specially designed for Oxygen applications mainly for equalisation of pressure upstream- and downstream and are complimentary to the V178, V180 and V365 Valves. These components are used as bypass, bleed or even shut-off components. series R374 (p. 17-20) series R178 (p. 21-24)Pressure range from 0 up to 100 barsFlange connections from 20 mm (3/4") to 100 mm (4")

GLOBE VALVES (P. 17 - 24)

Spheraxial DET170The Spheraxial DET170 Pressure regulator offers the following orifice diameter: the DET170-1'' with 25 mm (1") orifice diameter and the DET170-2''1/2 with 65 mm (2½") orifice diameter.Pressure range from 0 to 64 barsFlange Connections from 50 mm (2") to 200 mm (8")

PRESSURE REGULATORS (P. 25 - 28)

series CAR967 (p. 29 30) Pressure range from 0 to 64 barsFlange Connections from 80mm (3") to 350mm (14")

NON-RETURN VALVES (P. 29 - 30)

Two series: series IF78L series IF78CPressure range from 0 to 100 barsFlange Connections from 32mm (1"1/4) to 500 mm (20")

INSULATING JOINTS (P. 31 - 33)

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GATE VALVE

The V178 series belongs to a range of gate valves used as safety devices in gas piping systems and more specifically oxygen or neutral gases distribution networks. Body, bonnet and most of the internal parts are made of copper-aluminium or copper-nickel alloys. Both alloys offer an outstanding compatibility with oxygen and are strongly recommended for piping systems carrying oxidizing gases.The internal volumes and geometry are optimised to achieve the minimum pressure losses required for the transport of gaseous oxidising medium under pressure.

MEROBEL SERIES V178

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TECHNICAL APPENDICES (p. 34 - 38)ii

54

all rights of change reservedall rights of change reserved

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SUMMARY

INTRODUCTION

Merobel offers three series of shut - off gate valves. These are line valves whose opening is achieved by the sliding of a plate between two parallel seats. series V178 (p. 5 - 8) series V180 (p. 9 - 12) series V365 (p. 13 - 16)Pressure range from 0 to 100 barsFlange connections from 50mm (2") to 350mm (14"). Larger diameters available upon request.

GATE VALVES (P. 5 - 16)

Merobel offers two series of globe valves specially designed for Oxygen applications mainly for equalisation of pressure upstream- and downstream and are complimentary to the V178, V180 and V365 Valves. These components are used as bypass, bleed or even shut-off components. series R374 (p. 17-20) series R178 (p. 21-24)Pressure range from 0 up to 100 barsFlange connections from 20 mm (3/4") to 100 mm (4")

GLOBE VALVES (P. 17 - 24)

Spheraxial DET170The Spheraxial DET170 Pressure regulator offers the following orifice diameter: the DET170-1'' with 25 mm (1") orifice diameter and the DET170-2''1/2 with 65 mm (2½") orifice diameter.Pressure range from 0 to 64 barsFlange Connections from 50 mm (2") to 200 mm (8")

PRESSURE REGULATORS (P. 25 - 28)

series CAR967 (p. 29 30) Pressure range from 0 to 64 barsFlange Connections from 80mm (3") to 350mm (14")

NON-RETURN VALVES (P. 29 - 30)

Two series: series IF78L series IF78CPressure range from 0 to 100 barsFlange Connections from 32mm (1"1/4) to 500 mm (20")

INSULATING JOINTS (P. 31 - 33)

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GATE VALVE

The V178 series belongs to a range of gate valves used as safety devices in gas piping systems and more specifically oxygen or neutral gases distribution networks. Body, bonnet and most of the internal parts are made of copper-aluminium or copper-nickel alloys. Both alloys offer an outstanding compatibility with oxygen and are strongly recommended for piping systems carrying oxidizing gases.The internal volumes and geometry are optimised to achieve the minimum pressure losses required for the transport of gaseous oxidising medium under pressure.

MEROBEL SERIES V178

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TECHNICAL APPENDICES (p. 34 - 38)ii

54


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GATE VALVE - V178 SERIES

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The “Open” and “Closed” positions of the valve are achieved by moving a shutter up and down between two parallel seats: Closed position: The gate is pushed against the "downstream" seat by the upstream pressure ensuring the required leak tightness Open position: The shutter is raised up, opening a full section, resulting in what is known as an "integral" passage. This full bore passage reduces pressure losses. This reduces considerably the abnormal heating which would result from fluid lamination; it also prevents the impact of a foreign particles against any outstanding part of the valve body. Intermediate position: the valve should not be operated in the throttling or regulating mode (intermediate position, partly open or closed) In such a situation, the fluid is laminated; the turbulent flow and the resulting higher velocity can generate local heating which has potential risks of ignition. Equalization of upstream vs. downstream pressures When the valve is closed the upstream pressure is normally higher than the downstream pressure. The upstream pressure applies a force to the surface of the gate making it difficult to open. It is then difficult to lift the shutter. Apart from other consequences, this would result in accelerated wear of the soft seats and guiding sleeves. To prevent that accelerated wear, a by-pass valve is normally installed in order to balance the in- and pressures before opening the main valve. This by-pass is absolutely necessary for valves having a diameter greater than 80 mm, and working pressures equal or greater than 15 bars.

WORKING PRINCIPLE

DIMENSIONS

CROSS SECTION DRAWING

Manual ValvesFor safety reasons, large diameter valves are often installed behind protective walls, which act as flame shields in case of inflammation.Note: Valves with spindle extension are fitted with a safety disc. This disk is welded onto the extension rod,its function is to limit the projection of the stem and other pieces in the case of an explosion. V178 Valves can be installed according to following configurations:a) Operation by a hand wheel directly linked to the valve spindleb) Operation by a hand wheel connected to the valve spindle through a 90° bevel gearc) Operation by a hand wheel connected to the valve spindle through a spindle extensiond) Operation by a hand wheel connected to the valve spindle through a 90° bevel gear and a

spindle extensione) Operation by a servo-drive to the valve spindle via an spindle extension and a 90° bevel gear

CONFIGURATION OF VALVE ACTUATORS AND OPTIONS

Pneumatic operated ValvesThe pneumatic actuator consists of a piston moving within a cylinder . The piston is linked to the valve spindle. Driving fluid is usually sourced from the process pipe, upstream of the valve. A set of electro - valves is used to direct the driving fluid in the upper or lower chamber to open or close the valve, respectively.

Limit switchesPneumatic operated valves are fitted with two limit switches. One switch for the “Open” position and one for the “Closed” positionThese limits switches are housed in a casing fitted at the top of the actuator; they detect the motion of the valve spindle. The limit switches are standard inductive proximity sensors. Each of these 2 sensors can be connected to separate electrical circuits.Note: Manual V178 valves can also be fitted with limit switches. In such a configuration the limit switches are fitted onto the protective casing of the stem

a)

c)b) e)

d)

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Les deux cardans seront à souder sur site en respectant impérativement la position représentée

ØA

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FAF

F

FAF

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ØA

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ØA FAF E F G J

m m m m m m m m m m m m NF ANSI Man. Pneu.

50 (2) 50 292 156 650 510 ISO PN100 class 600

80 (3) 80 356 217 780 645 ISO PN100 class 600 106

100 (4) 100 432 260 910 750 859 ISO PN100 class 600

150 (6) 150 559 340 1145 970 1065 ISO PN100 class 600 352 408

200 (8) 200 660 438 1435 1180 1285 ISO PN100 class 600 504 545

300 (12) 300 838 586 1790 1609 ISO PN100 class 600 826

ConnectionsDN NPS

Weight (kg)


SMT


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WORKING PRINCIPLE

DIMENSIONS


Manual ValvesFor safety reasons, large diameter valves are often installed behind protective walls, which act as flame shields in case of inflammation.Note: Valves with spindle extension are fitted with a safety disc. This disk is welded onto the extension rod,its function is to limit the projection of the stem and other pieces in the case of an explosion. V178 Valves can be installed according to following configurations:a) Operation by a hand wheel directly linked to the valve spindleb) Operation by a hand wheel connected to the valve spindle through a 90° bevel gearc) Operation by a hand wheel connected to the valve spindle through a spindle extensiond) Operation by a hand wheel connected to the valve spindle through a 90° bevel gear and a

spindle extensione) Operation by a servo-drive to the valve spindle via an spindle extension and a 90° bevel gear


Pneumatic operated ValvesThe pneumatic actuator consists of a piston moving within a cylinder . The piston is linked to the valve spindle. Driving fluid is usually sourced from the process pipe, upstream of the valve. A set of electro - valves is used to direct the driving fluid in the upper or lower chamber to open or close the valve, respectively.

Limit switchesPneumatic operated valves are fitted with two limit switches. One switch for the “Open” position and one for the “Closed” positionThese limits switches are housed in a casing fitted at the top of the actuator; they detect the motion of the valve spindle. The limit switches are standard inductive proximity sensors. Each of these 2 sensors can be connected to separate electrical circuits.Note: Manual V178 valves can also be fitted with limit switches. In such a configuration the limit switches are fitted onto the protective casing of the stem

a)

c)b) e)

d)

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FAF

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ØA

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FAF

F

FAF

E

ØA

76

ØA FAF E F G J

m m m m m m m m m m m m NF ANSI Man. Pneu.

50 (2) 50 292 156 650 510 ISO PN100 class 600

80 (3) 80 356 217 780 645 ISO PN100 class 600 106

100 (4) 100 432 260 910 750 859 ISO PN100 class 600

150 (6) 150 559 340 1145 970 1065 ISO PN100 class 600 352 408

200 (8) 200 660 438 1435 1180 1285 ISO PN100 class 600 504 545

300 (12) 300 838 586 1790 1609 ISO PN100 class 600 826

ConnectionsDN NPS

Weight (kg)


V178 CuAl Copper Alu

CuNi Copper Nickel

Pneumatic actuation PNEU

Manual actuation MAN RF Raised face

Manual act. with Spindel Ext.. MAN+RAL FF Flat face

Manual act. with 90° bevel gear MAN+ANG RTJ Grooved face

Manual act. with Spindel Ext.. and 90° bevel gear MAN+RAL+ANG (Surface finish to be given)

Servodrive with Spindel Ext. and 90° bevel gear SM+RAL+ANG

ISO PN100-DN50 Dia 50mm

Dia 50mm DS50 ISO PN100-DN80 Dia 80mm






Dia 300mm DS300

2FC Proximity switches

Limit Switches

Example V178 \ MAN+RAL \ DS80 \ ISO PN100-DN100 \ RF\ CuAl

Series

Actuation

Orifice Size

Material

Flange

Connections The V180 series belongs to a range of gate valves used as safety devices in gas piping systems and more specifically oxygen or neutral gases distribution networks. Body, bonnet and most of the internal parts are made of copper-aluminium or copper-nickel alloys. Both alloys offer an outstanding compatibility with oxygen and are strongly recommended for piping systems carrying oxidizing gases.The internal volumes and geometry are optimised to achieve the minimum pressure losses required for the transport of gaseous oxidising medium under pressure.

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PRODUCT CODING

OPERATING AND MANUFACTURING DATA

MEROBEL SERIES V180

ROTAREXGroup

ROTAREXGroup www.rotarex.com - email: [email protected] 98

Operating press. range (PS) 0 to 100 bar

Opertating Temp. Range (TS) -20°C to +60°C

Direction of f low both directions

Installation Vertical - Actuator up

Leakage Class Taux A (acc. to EN12266-1) or IV-1 (acc. to DIN3230 Std or SC440.03-C AL Std)

Orif ice diameter 50, 80, 100, 150, 200 or 300mm

Materials Body bonnet and most internals made of CuAL or CuNi (other material on request)

In- Outlet tightness Shutter made of CuAl or CuNi versus PCTFE Seats

In- Outlet tightness O-rings made of FPM

Stem Guiding PCTFE Sleeves

Electrical conductivity Copper braid betw een shutter and body

Production tests Individual tests (hydraulic test at 150 bar - Leaktightness test at 110 bar

Manual actuation Handw heel

Electrical actuation Servodrive

Pneumatic actuation Double acting actuation

Dimnesions ND 50 to ND400 (ISO PN100 standard f langes) other dimension on request

Face and f inish RF, FF, RTJ faces (other faces and f inish on request)

Operating Data

Manufacturing Data

Actuation

Connections

GATE VALVE


V178 CuAl Copper Alu

CuNi Copper Nickel

Pneumatic actuation PNEU

Manual actuation MAN RF Raised face

Manual act. with Spindel Ext.. MAN+RAL FF Flat face

Manual act. with 90° bevel gear MAN+ANG RTJ Grooved face

Manual act. with Spindel Ext.. and 90° bevel gear MAN+RAL+ANG (Surface finish to be given)

Servodrive with Spindel Ext. and 90° bevel gear SM+RAL+ANG








Dia 300mm DS300

2FC Proximity switches

Limit Switches


Series

Actuation

Orifice Size

Material

Flange

Connections The V180 series belongs to a range of gate valves used as safety devices in gas piping systems and more specifically oxygen or neutral gases distribution networks. Body, bonnet and most of the internal parts are made of copper-aluminium or copper-nickel alloys. Both alloys offer an outstanding compatibility with oxygen and are strongly recommended for piping systems carrying oxidizing gases.The internal volumes and geometry are optimised to achieve the minimum pressure losses required for the transport of gaseous oxidising medium under pressure.

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PRODUCT CODING


MEROBEL SERIES V180

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Operating Data

Manufacturing Data

Actuation

Connections

GATE VALVE



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DIMENSIONS

a)

c)b) e)

d)

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FAF

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ØA

EJ

FAF

F

FAF

E

ØA

ØA FAF E F G Jmm mm mm mm mm mm NF ANSI M an Pneu

50 2 50 216 130 515 430 ISO-PN50 class 300 50 55

80 3 80 283 200 665 600 ISO-PN50 class 300 95 100

100 4 100 305 255 780 740 801 ISO-PN50 class 300 140 150

150 6 150 403 335 955 920 952 ISO-PN50 class 300 204 215

200 8 200 419 427 1210 1200 1140 ISO-PN50 class 300 388 390

300 12 300 502 575 1640 1609 ISO-PN50 class 300

Raccordement Poids(kg)DN NPS

1110


WORKING PRINCIPLE

DIMENSIONS



• Manual ValvesFor safety reasons, large diameter valves are often installed behind protective walls, which act as

flame shields in case of inflammation.Note: Valves with spindle extension are fitted with a safety disc. This disk is welded onto the extension

rod, its function is to limit the projection of the stem and other pieces in the case of an explosion.V180 Valves can be installed according to following configurations:

a) Operation by a hand wheel directly linked to the valve spindleb) Operation by a hand wheel connected to the valve spindle through a 90° bevel gearc) Operation by a hand wheel connected to the valve spindle through a spindle extensiond) Operation by a hand wheel connected to the valve spindle through a 90° bevel gear and a spindle extensionOperation by a servo-drive to the valve spindle via an spindle extension and a 90° bevel gear


Pneumatic operated ValvesThe pneumatic actuator consists of a piston moving within a cylinder . The piston is

linked to the valve spindle. Driving fluid is usually sourced from the process pipe, upstream of the valve. A set of electro - valves is used to direct the driving fluid in the upper or lower chamber to open or close the valve, respectively.

Limit switchesPneumatic operated valves are fitted with two limit switches. One switch for the “Open” position and one for the “Closed” position

These limits switches are housed in a casing fitted at the top of the actuator; they detect the motion of the valve spindle. The limit switches are standard inductive proximity sensors. Each of these 2 sensors can be connected to separate electrical circuits. Note: Manual V180 valves can also be fitted with limit switches. In such a configuration the limit switches are fitted onto the protective casing of the stem



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DIMENSIONS

a)

c)b) e)

d)

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ØA

FAF

EG


ØA

EJ

FAF

F

FAF

E

ØA

ØA FAF E F G Jmm mm mm mm mm mm NF ANSI M an Pneu

50 2 50 216 130 515 430 ISO-PN50 class 300 50 55

80 3 80 283 200 665 600 ISO-PN50 class 300 95 100

100 4 100 305 255 780 740 801 ISO-PN50 class 300 140 150

150 6 150 403 335 955 920 952 ISO-PN50 class 300 204 215

200 8 200 419 427 1210 1200 1140 ISO-PN50 class 300 388 390

300 12 300 502 575 1640 1609 ISO-PN50 class 300

Raccordement Poids(kg)DN NPS

1110


WORKING PRINCIPLE

DIMENSIONS



• Manual ValvesFor safety reasons, large diameter valves are often installed behind protective walls, which act as

flame shields in case of inflammation.Note: Valves with spindle extension are fitted with a safety disc. This disk is welded onto the extension

rod, its function is to limit the projection of the stem and other pieces in the case of an explosion.V180 Valves can be installed according to following configurations:

a) Operation by a hand wheel directly linked to the valve spindleb) Operation by a hand wheel connected to the valve spindle through a 90° bevel gearc) Operation by a hand wheel connected to the valve spindle through a spindle extensiond) Operation by a hand wheel connected to the valve spindle through a 90° bevel gear and a spindle extensionOperation by a servo-drive to the valve spindle via an spindle extension and a 90° bevel gear





These limits switches are housed in a casing fitted at the top of the actuator; they detect the motion of the valve spindle. The limit switches are standard inductive proximity sensors. Each of these 2 sensors can be connected to separate electrical circuits. Note: Manual V180 valves can also be fitted with limit switches. In such a configuration the limit switches are fitted onto the protective casing of the stem


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GATE VALVE

MEROBEL SERIES V365

The V365 Gate Valves are similar to the V178 and V178 series but offer much smaller face to face dimensions. Therefore, these valves can easily be inserted in a piping system, either as part of a new piping extensions or as retrofit of an existing system.

The V365 valves can be installed in vertical , horizontal or angled positions

The V365 gate valve requires careful installation as the flat shape requires the piping system to be well supported in order to prevent stress forces being applied to the valve body

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PRODUCT CODING




















Operating Data

Manufacturing Data

Actuation

Connections

Serie V180 CuAl Copper Alu

CuNi Copper Nickel

P neumatic actuatio n P NEU

M anual actuatio n M A N RF Raised face

M anual act. with Spindel Ext.. M A N+RA L FF Flat face

M anual act. with 90° bevel gear M A N+A NG RTJ Grooved face

M anual act. with Spindel Ext.. and 90° bevel gear M A N+RA L+A NG (Surface f inish to be given

Servo drive with Spindel Ext. and 90° bevel gear SM +RA L+A NG

ISO P N50-DN50 Dia 50mm

Dia 50mm DS50 ISO P N50-DN80 Dia 80mm






Dia 300mm DS300

2FC Proximity sw itches

Limit Switches


Series - Model

Actuation

Orifice Size

Material

Flange

Connexion

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GATE VALVE

MEROBEL SERIES V365

The V365 Gate Valves are similar to the V178 and V178 series but offer much smaller face to face dimensions. Therefore, these valves can easily be inserted in a piping system, either as part of a new piping extensions or as retrofit of an existing system.

The V365 valves can be installed in vertical , horizontal or angled positions

The V365 gate valve requires careful installation as the flat shape requires the piping system to be well supported in order to prevent stress forces being applied to the valve body

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PRODUCT CODING




















Operating Data

Manufacturing Data

Actuation

Connections

Serie V180 CuAl Copper Alu

CuNi Copper Nickel

P neumatic actuatio n P NEU

M anual actuatio n M A N RF Raised face

M anual act. with Spindel Ext.. M A N+RA L FF Flat face

M anual act. with 90° bevel gear M A N+A NG RTJ Grooved face

M anual act. with Spindel Ext.. and 90° bevel gear M A N+RA L+A NG (Surface f inish to be given

Servo drive with Spindel Ext. and 90° bevel gear SM +RA L+A NG

ISO P N50-DN50 Dia 50mm







Dia 300mm DS300

2FC Proximity sw itches

Limit Switches


Series - Model

Actuation

Orifice Size

Material

Flange

Connexion

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GATE VALVE - V365 SERIESGATE VALVE - V365 SERIES

WORKING PRINCIPLE CONFIGURATION OF VALVE ACTUATORS AND OPTIONS

OUTLINE DIMENSIONS



Manual ValvesFor safety reasons, large diameter valves are often installed behind protective walls, which act as flame shields in case of inflammation.Note: Valves with spindle extension are fitted with a safety disc. This disk is welded onto the extension rod, its function is to limit the projection of the stem and other pieces in the case of an explosion.V178 Valves can be installed according to following configurations:a) Operation by a hand wheel directly linked to the valve spindleb) Operation by a hand wheel connected to the valve spindle through a 90° bevel gearc) Operation by a hand wheel connected to the valve spindle through a spindle extensiond) Operation by a hand wheel connected to the valve spindle through a 90° bevel gear and

a spindle extensione) Operation by a servo-drive to the valve spindle via an spindle extension and a 90° bevel gear




These limits switches are housed in a casing fitted at the top of the actuator; they detect the motion of the valve spindle. The limit switches are standard inductive proximity sensors. Each of these 2 sensors can be connected to separate electrical circuits.

ROTAREXGroup

ROTAREXGroup

ØA C E F G J Lmm mm mm mm mm mm mm NF ANSI M an Pneu

80 3 80 98 198 624 580 521 216 ISO PN50 class 300 48 39

150 6 150 144 325 950 920 876 340 ISO PN50 class 300 457 142

200 8 200 164 417 1160 1125 424 ISO PN50 class 300 235 208

250 10 250 170 480 1420 1331 512 ISO PN50 class 300 420 408

Connections weight(kg)DN NPS

1514


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GATE VALVE - V365 SERIESGATE VALVE - V365 SERIES


OUTLINE DIMENSIONS



Manual ValvesFor safety reasons, large diameter valves are often installed behind protective walls, which act as flame shields in case of inflammation.Note: Valves with spindle extension are fitted with a safety disc. This disk is welded onto the extension rod, its function is to limit the projection of the stem and other pieces in the case of an explosion.V178 Valves can be installed according to following configurations:a) Operation by a hand wheel directly linked to the valve spindleb) Operation by a hand wheel connected to the valve spindle through a 90° bevel gearc) Operation by a hand wheel connected to the valve spindle through a spindle extensiond) Operation by a hand wheel connected to the valve spindle through a 90° bevel gear and

a spindle extensione) Operation by a servo-drive to the valve spindle via an spindle extension and a 90° bevel gear




These limits switches are housed in a casing fitted at the top of the actuator; they detect the motion of the valve spindle. The limit switches are standard inductive proximity sensors. Each of these 2 sensors can be connected to separate electrical circuits.

ROTAREXGroup

ROTAREXGroup

ØA C E F G J Lmm mm mm mm mm mm mm NF ANSI M an Pneu

80 3 80 98 198 624 580 521 216 ISO PN50 class 300 48 39

150 6 150 144 325 950 920 876 340 ISO PN50 class 300 457 142

200 8 200 164 417 1160 1125 424 ISO PN50 class 300 235 208

250 10 250 170 480 1420 1331 512 ISO PN50 class 300 420 408

Connections weight(kg)DN NPS

1514


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GLOBE VALVE



PRODUCT CODING

MEROBEL SERIES R374

ROTAREXGroup

ROTAREXGroup www.rotarex.com - email: [email protected]

The main application of R374 valves is the pressure equalization across an isolation gate valve of a oxygen piping system (and/or piping systems for other oxidising gases, or nitrogen). These valves are normally piped from immediately upstream to immediately downstream of manual- or pneumatic actuated valves such as V178, V180 or V365 valves. These R374 valves can also be used as bleed valves (Refer to the installation diagram showed in section as “configuration with safety buffer”).In common with V178, V180 or V365 shut-off valves, the body, bonnet and internal of R374 valves are made of copper-aluminium or copper-nickel alloys which are highly compatible with oxidising gases such as oxygen.The internal forms are optimised to reach minimum pressure losses required for the transport of gaseous oxidising medium under pressure.These valves are also used as shut-off valves or line valves for consignment of secondary bypass systems.

1716





Installation Any position











Pneumatic actuation Double acting actuation or autopneumatic actuation



Operating Data

Manufacturing Data

Actuation

Connections

Serie V 180 CuA l Copper A lu

CuNi Copper Nickel

P neum atic ac tuat io n P N EU

A uto pneum atic ac tuat io n A UTO-P N EU RF Raised face

M anual ac tuat io n M A N FF Flat f ace

M anual ac t. with Spindel Ext.. M A N +R A L RTJ Grooved face

M anual ac t. with 90° bevel gear M A N +A N G (Surf ace f inish to be given

M anual ac t. with Spindel Ext.. and 90° bevel gear M A N +R A L+A N G

Servo drive with Spindel Ext. and 90° bevel gear SM +R A L+A N G

ISO P N 50-D N 50 Dia 50mm

Dia 80mm D S80 ISO P N 50-D N 80 Dia 80mm



Dia 250mm D S250 ISO P N 50- D N 200 Dia 200mm





2FC Prox imity sw itches

Lim it Sw itches

Exam ple V365 \ AUTO-PNEU \ DS80 \ ISO PN40-DN80 \ RF\ CuAl

Series - Mode l

Actua tion

Orifice Size

Materia l

Flange

Connex ion

merocat-03-5

SMT

merocat-03-5

SMT

GLOBE VALVE



PRODUCT CODING

MEROBEL SERIES R374

ROTAREXGroup



1716





Installation Any position











Pneumatic actuation Double acting actuation or autopneumatic actuation



Operating Data

Manufacturing Data

Actuation

Connections

Serie V 180 CuA l Copper A lu

CuNi Copper Nickel

P neum atic ac tuat io n P N EU

A uto pneum atic ac tuat io n A UTO-P N EU RF Raised face

M anual ac tuat io n M A N FF Flat f ace

M anual ac t. with Spindel Ext.. M A N +R A L RTJ Grooved face

M anual ac t. with 90° bevel gear M A N +A N G (Surf ace f inish to be given

M anual ac t. with Spindel Ext.. and 90° bevel gear M A N +R A L+A N G

Servo drive with Spindel Ext. and 90° bevel gear SM +R A L+A N G





Dia 250mm D S250 ISO P N 50- D N 200 Dia 200mm





2FC Prox imity sw itches

Lim it Sw itches

Exam ple V365 \ AUTO-PNEU \ DS80 \ ISO PN40-DN80 \ RF\ CuAl

Series - Mode l

Actua tion

Orifice Size

Materia l

Flange

Connex ion

merocat-03-5

SMT

merocat-03-5

SMT

GLOBE VALVE - R374 SERIESGLOBE VALVE - R374 SERIES


OUTLINE DIMENSIONS

ROTAREXGroup

ROTAREXGroup

The R374 is a globe valve with a balanced plug. This design makes it possible to operate the valve with a very low torque / pressure, irrespective of the pressure in the process pipe Inlet/ Outlet sealing is achieved with a metal plug applied to a seat made of polymer (PTCFE). The seat disk holder and seat itself are removable, which considerably reduces maintenance costs. The R374 valve is available in manual and pneumatic versions. The pneumatic version are powered either with a single action or double action pneumatic actuator

Manual actuationFor safety reasons, manually actuated valves are often placed behind a protective wall which acts as a flame-shield in case of inflammation or explosion. Depending upon the configurations the valve can be operated as follows:a) Operation by a hand wheel directly linked to the valve spindle(fig 2)b) Operation by a hand wheel connected to the valve spindle through a spindle extension

Note: A protection disc is provided in configurations with an spindle extension. This disc is welded onto the spindle extension. The disc limits the projection of components in the case of an explosion.

Pneumatic actuation “Double action ” The plug moves up and down by applying the pressure to either to the upper chamber (to close it) or the lower chamber (to open it)(fig 3). “Single action ” (Normally Open (fig.1)). When no gas is applied to the upper chamber, the spring located under the seat disk holder of the lower chamber pushes the plug upwards keeping the valve in the “Open” position. When the gas is processed to the upper chamber, the piston is pushed downward bringing the plug in contact with the seat. The valve is closed and the back spring is compressed.

INSTALLATION DIAGRAMS

Refer to the technical data in the "Appendix" section of the catalogue (page 34).

Note: the “DS20” version of the R374 valve has non-standard flanges. Therefore, the valve is fitted with 2 counter-flanges which have a welding- or brazing neck. The material and the dimensions of the necks are selected according to the characteristics of the pipe, based on the following diagram.

CROSS-SECTION DRAWINGS

1918

FAF

ØA

D2

ØDS

FAF

ØA

D1

ØDS

ØA

D2

FAF

ØDS

fig.1 fig.2 fig.3

FAF ØA Dia DS D1 D2

m m m m m m m m m m NF ANSI Man. Pneu.

20 (3/4) 108 209 20 510 ISO PN100 class 600

25 (1) 140 25 25 645 ISO PN100 class 600

32 (1 1/4) 160 32 32 750 859 ISO PN100 class 600

ConnectionsDN NPS

Weight (kg)


merocat-03-5

SMT

merocat-03-5

SMT

GLOBE VALVE - R374 SERIESGLOBE VALVE - R374 SERIES


OUTLINE DIMENSIONS

ROTAREXGroup

ROTAREXGroup

The R374 is a globe valve with a balanced plug. This design makes it possible to operate the valve with a very low torque / pressure, irrespective of the pressure in the process pipe Inlet/ Outlet sealing is achieved with a metal plug applied to a seat made of polymer (PTCFE). The seat disk holder and seat itself are removable, which considerably reduces maintenance costs. The R374 valve is available in manual and pneumatic versions. The pneumatic version are powered either with a single action or double action pneumatic actuator

Manual actuationFor safety reasons, manually actuated valves are often placed behind a protective wall which acts as a flame-shield in case of inflammation or explosion. Depending upon the configurations the valve can be operated as follows:a) Operation by a hand wheel directly linked to the valve spindle(fig 2)b) Operation by a hand wheel connected to the valve spindle through a spindle extension


Pneumatic actuation “Double action ” The plug moves up and down by applying the pressure to either to the upper chamber (to close it) or the lower chamber (to open it)(fig 3). “Single action ” (Normally Open (fig.1)). When no gas is applied to the upper chamber, the spring located under the seat disk holder of the lower chamber pushes the plug upwards keeping the valve in the “Open” position. When the gas is processed to the upper chamber, the piston is pushed downward bringing the plug in contact with the seat. The valve is closed and the back spring is compressed.



Note: the “DS20” version of the R374 valve has non-standard flanges. Therefore, the valve is fitted with 2 counter-flanges which have a welding- or brazing neck. The material and the dimensions of the necks are selected according to the characteristics of the pipe, based on the following diagram.


1918

FAF

ØA

D2

ØDS

FAF

ØA

D1

ØDS

ØA

D2

FAF

ØDS

fig.1 fig.2 fig.3

FAF ØA Dia DS D1 D2


20 (3/4) 108 209 20 510 ISO PN100 class 600

25 (1) 140 25 25 645 ISO PN100 class 600

32 (1 1/4) 160 32 32 750 859 ISO PN100 class 600

ConnectionsDN NPS

Weight (kg)


merocat-03-5

SMT

merocat-03-5

SMT

GLOBE VALVEGLOBE VALVE - R374 SERIES

TECHNICAL DATA

MEROBEL SERIES R178

ROTAREXGroup



PRODUCT CODING

2120



Direction of f low one direction as shown by the arrow on the valve body

Installation all positions


Orif ice diameter 20, 25, 32mm


In- Outlet tightness balanced plug made of CuAl or CuNi versus PCTFE Seats



Electrical conductivity Through a spring locatedf at the low er part of the valve



Pneumatic actuation Double acting actuation or single acting actuator (also named autopneumatic version)

Dimnesions ND 20 (see comment) ND25, ND32

Faces and f inish RF, FF, RTJ faces (other faces and f inish on request)

Note

The R374 valve w ith orif ice size 20mm has non-standard f langes. The valve is

delivered w ith (2x) counter f langes and w elding neck to interface w ith pipe. Material

and dimensions of counter f langes have to be selected in accordance w ith pipe specs.

Operating Data

Manufacturing Data

Actuation

Connections


Serie 374 CuAl Copper Alu

CuNi Copper Nickel

Manual actuation MAN

Manual act. with Spindel Ext.. MAN+RAL RF Raised face

Pneumatic Actuation singel effect PNEU 1 FF Flat face

Pneumatic Actuation singel effect PNEU 1 RTJ Grooved face

(Surface finish to be given

Dia 20mm DS80

Dia 25mm DS150

Dia 32mm DS200 XPN100-DN20 Special Flange (with counter flange and WN)



Example 374 \ MAN+RAL \ DS25 \ ISO PN100-DN25 \ RF\ CuAl

Series - Model

Actuation

Material

Flange

Connexion

Orifice Size

merocat-03-5

SMT

merocat-03-5

SMT

GLOBE VALVEGLOBE VALVE - R374 SERIES

TECHNICAL DATA

MEROBEL SERIES R178

ROTAREXGroup



PRODUCT CODING

2120






Orif ice diameter 20, 25, 32mm








Pneumatic actuation Double acting actuation or single acting actuator (also named autopneumatic version)

Dimnesions ND 20 (see comment) ND25, ND32


Note

The R374 valve w ith orif ice size 20mm has non-standard f langes. The valve is

delivered w ith (2x) counter f langes and w elding neck to interface w ith pipe. Material

and dimensions of counter f langes have to be selected in accordance w ith pipe specs.

Operating Data

Manufacturing Data

Actuation

Connections



CuNi Copper Nickel



Pneumatic Actuation singel effect PNEU 1 FF Flat face

Pneumatic Actuation singel effect PNEU 1 RTJ Grooved face


Dia 20mm DS80

Dia 25mm DS150

Dia 32mm DS200 XPN100-DN20 Special Flange (with counter flange and WN)



Example 374 \ MAN+RAL \ DS25 \ ISO PN100-DN25 \ RF\ CuAl

Series - Model

Actuation

Material

Flange

Connexion

Orifice Size

merocat-03-5

SMT

merocat-03-5

SMT

GLOBE VALVE R178 SERIESGLOBE VALVE R178 SERIES


OUTLINE DIMENSIONS

ROTAREXGroup

ROTAREXGroup

Manual actuationFor safety reasons, manually actuated valves are often placed behind a protective wall which acts as a flame-shield in case of inflammation or explosion. Depending to the configurations the valve can be operated as follows:a) Operation by a hand wheel directly linked to the valve spindleb) Operation by a hand wheel connected to the valve spindle through a spindle extension


Pneumatic actuationThe pneumatic actuator of the R178 valve is a single action actuator. This actuator consists of a piston moving in a cylinder. The piston itself is linked to the stem.In a stand-by position, a back-spring located at the top of the cylinder, pushes the plug to the closed position. When the gas is processed into the cylinder chamber, the piston is pushed to its upper position lifting the plug which open the orifice. As long as the gas pressure is the applied to the actuator the valve is open and the back spring is compressed. When the gas is purged, the back-spring pushes the piston and plug to the lower position and the valve is closed




2322

The R178 is a globe valve with balanced plug. This design makes it possible to operate the valve with a very low torque/ pressure irrespective of the pressure in the process pipe . Inlet/ Outlet sealing is achieved with the metal plug applies to a seat made of polymer (PTCFE). The seat disk holder and seat itself are removable, which considerably reduces maintenance costs. The R374 valve is available in manual version and pneumatic versions. The working principle of the pneumatic version is a single action actuator

D2

ØA

FAF

ØDSØDS ØA

D1

FAF

Avec rallonge Sans rallonge

Cardan

Cardan

ØA

FAF

ØDS

DS A FAF D1 D2


20 (3/4) 20 20 190 293 453 ISO PN100 class 600 22 40

25 (1) 25 25 216 293 453 ISO PN100 class 600 28 42

50 (2) 50 50 292 438 578 ISO PN100 class 600 48 64

80 (3) 80 80 356 545 736 ISO PN100 class 600 87 118

100 (4) 100 100 432 ISO PN100 class 600

ConnectionsDN NPS

Weight (kg)


merocat-03-5

SMT

merocat-03-5

SMT

GLOBE VALVE R178 SERIESGLOBE VALVE R178 SERIES


OUTLINE DIMENSIONS

ROTAREXGroup

ROTAREXGroup

Manual actuationFor safety reasons, manually actuated valves are often placed behind a protective wall which acts as a flame-shield in case of inflammation or explosion. Depending to the configurations the valve can be operated as follows:a) Operation by a hand wheel directly linked to the valve spindleb) Operation by a hand wheel connected to the valve spindle through a spindle extension


Pneumatic actuationThe pneumatic actuator of the R178 valve is a single action actuator. This actuator consists of a piston moving in a cylinder. The piston itself is linked to the stem.In a stand-by position, a back-spring located at the top of the cylinder, pushes the plug to the closed position. When the gas is processed into the cylinder chamber, the piston is pushed to its upper position lifting the plug which open the orifice. As long as the gas pressure is the applied to the actuator the valve is open and the back spring is compressed. When the gas is purged, the back-spring pushes the piston and plug to the lower position and the valve is closed




2322

The R178 is a globe valve with balanced plug. This design makes it possible to operate the valve with a very low torque/ pressure irrespective of the pressure in the process pipe . Inlet/ Outlet sealing is achieved with the metal plug applies to a seat made of polymer (PTCFE). The seat disk holder and seat itself are removable, which considerably reduces maintenance costs. The R374 valve is available in manual version and pneumatic versions. The working principle of the pneumatic version is a single action actuator

D2

ØA

FAF

ØDSØDS ØA

D1

FAF

Avec rallonge Sans rallonge

Cardan

Cardan

ØA

FAF

ØDS

DS A FAF D1 D2


20 (3/4) 20 20 190 293 453 ISO PN100 class 600 22 40

25 (1) 25 25 216 293 453 ISO PN100 class 600 28 42

50 (2) 50 50 292 438 578 ISO PN100 class 600 48 64

80 (3) 80 80 356 545 736 ISO PN100 class 600 87 118

100 (4) 100 100 432 ISO PN100 class 600

ConnectionsDN NPS

Weight (kg)



CuNi Copper Nickel



Pneumatic Actuation single acting PNEU 1 FF Flat face

RTJ Grooved face


Dia 20mm DS20

Dia 50mm DS50






Example R178 \ MAN+RAL \ DS25 \ ISO PN100-DN25 \ RF\ CuAl

Series - Model

Actuation

Material

Flange

Connexion

Orifice Size

merocat-03-5

SMT

merocat-03-5

SMT

REGULATORGLOBE VALVE R178 SERIES

TECHNICAL DATA

MEROBEL SERIES DET170

ROTAREXGroup


PRODUCT CODING

The Spheraxial DET170 pressure regulator is used to control the downstream pressure in a gas distribution system. This pressure regulator, which was designed in cooperation with Air Liquide, is suitable for oxygen distribution at high flow-rates. Its exceptional design allows a steady downstream pressure whatever the flow variations required by the users connected to the downstream system.The body of the DET170 regulator and most of the internal parts are made of either copper-aluminium or copper-nickel alloy. These two alloys offer an excellent compatibility with oxidising gases such as Oxygen.The fluid flows inside the pressure regulator follows a coaxial profile. This profile and optimised internal volumes reduce the pressure losses. Minimum heating resulting from the limited head losses is a major advantage when processing gaseous oxygen under pressure.

To obtain different pressures out of branch pipes connected to a common main piping, it is usual to have each branch fitted with one DET regulator. Pressure of each branch can be then adjusted to the individual need of each final user without feed back to other branches or main piping

2524






Orif ice diameter 20, 50, 80, 100mm








Pneumatic actuation Single acting actuator (also named autopneumatic version)

Dimnesions ND 20 to DN100 (ISO PN100) Note: DN 20 and DN25 Flanges of R178 have threaded holes]


Operating Data

Manufacturing Data

Actuation

Connections



CuNi Copper Nickel



Pneumatic Actuation single acting PNEU 1 FF Flat face

RTJ Grooved face


Dia 20mm DS20

Dia 50mm DS50






Example R178 \ MAN+RAL \ DS25 \ ISO PN100-DN25 \ RF\ CuAl

Series - Model

Actuation

Material

Flange

Connexion

Orifice Size

merocat-03-5

SMT

merocat-03-5

SMT

REGULATORGLOBE VALVE R178 SERIES

TECHNICAL DATA

MEROBEL SERIES DET170

ROTAREXGroup


PRODUCT CODING

The Spheraxial DET170 pressure regulator is used to control the downstream pressure in a gas distribution system. This pressure regulator, which was designed in cooperation with Air Liquide, is suitable for oxygen distribution at high flow-rates. Its exceptional design allows a steady downstream pressure whatever the flow variations required by the users connected to the downstream system.The body of the DET170 regulator and most of the internal parts are made of either copper-aluminium or copper-nickel alloy. These two alloys offer an excellent compatibility with oxidising gases such as Oxygen.The fluid flows inside the pressure regulator follows a coaxial profile. This profile and optimised internal volumes reduce the pressure losses. Minimum heating resulting from the limited head losses is a major advantage when processing gaseous oxygen under pressure.

To obtain different pressures out of branch pipes connected to a common main piping, it is usual to have each branch fitted with one DET regulator. Pressure of each branch can be then adjusted to the individual need of each final user without feed back to other branches or main piping

2524






Orif ice diameter 20, 50, 80, 100mm








Pneumatic actuation Single acting actuator (also named autopneumatic version)

Dimnesions ND 20 to DN100 (ISO PN100) Note: DN 20 and DN25 Flanges of R178 have threaded holes]


Operating Data

Manufacturing Data

Actuation

Connections


merocat-03-5

SMT

merocat-03-5

SMT

REGULATOR - DET170 SERIESREGULATOR - DET170 SERIES

WORKING PRINCIPLE TYPICAL INSTALLATION DIAGRAM

OUTLINE DIMENSIONS

ROTAREXGroup

ROTAREXGroup

Entrée de la pression avale

Vers obturateur de sécurité Action intégrale

Entrée de la pression de consigne

FAF

ØA

ØD

S

SENS DU GAZ

COLLET AMONT

COLLET AVAL

BRIDE TOURNANTE

BRIDE TOURNANTE


An output signal (Pc) generated by a pressure regulator and back pressure regulator (DD1) , is applied to one face of the diaphragm (M). The downstream pressure (controlled pressure P2) feeds back a rear chamber located on the other face of the diaphragm (M). The diaphragm moves until it reaches an equilibrium position. The plug which is linked to the diaphragm valve, opens and closes the seat orifice (S) until the output signal equals the downstream pressure. As the gas flow requirement increases the downstream pressure decreases. As the result, the diaphragm (M) moves backwards to reach a new position where a wider opening allows a greater gas flow. If the gas flow requirement decreases the downstream pressure increases . As the result, the diaphragm (M) moves forwards to reach a new position where a smaller opening reduces the gas flow.

Safety Plug ValveOptionally, the pressure regulator can be fitted with a safety plug valve. This device can be operated according to different safety sequences depending upon designs and connections non-return valve function : the safety plug valve is connected directly to the downstream piping (downstream pressure), in case the downstream pressure increase, the safety plug valve shuts immediately [upstream pressure (P1) less than the downstream pressure (P2)]. Emergency shut-off: Provided that an appropriate slaving system is available, the safety plug interrupts the gas flow when the relief pressure exceeds a lower and/or an upper limit.

Damper needle valveThe output signal in the chamber is applied to the face of the diaphragm through a narrow opening which is fitted with a needle valve. Throttling the opening with the needle valve regulates the velocity at which the set pressure is applied to the diaphragm. It is then possible to damp the oscillations which would result from immediate responses to variations of the pressure unbalance. In other words, the needle valve allows the response time to be optimised

Connection:The input and output connections are rotating flanges mounted onto the divergent inlet and outlet Dimensions and configurations are selected according to the flow, pressure and nominal diameters of the piping system.

The standard control manifold of DET170 consists of:

The upstream loop:The fluid needed to build the output signal is taken out upstream from the process piping and connected to the pressure regulator through 8x10mm tubing via an isolating ball valve and a filter. This upstream pressure can be read on a Pressure Indicator controlled by an isolating ball valve. The regulator reduces this upstream pressure to the set value. The output signal feeds the rear chamber of the DET170 through a tubing fitted with an isolating valve, pressure indicator, and a vent fittingAn additional back pressure regulator ensures that the pressure in that part of the manifold is always smaller than or equal to the set pressure.

Downstream loop:The downstream pressure is connected to the front chamber of the regulator through tubing. Other components on this loop are a line valve and a pressure indicator with isolating valve

2726

DS A B FAF Weight

mm mm mm mm NF ANSI kg

50 (2) 25 270 ISO PN64 22

65 (2,5) 25 270 ISO PN64 28

80 (3) 25 270 ISO PN64 48

80 (3) 25 270 ISO PN64 48

DET170-1" Pressure regulatoConnections

DN NPSDS A B FAF Weight


80 (3) 65 520 188 ISO PN64 22

100 (4) 65 520 200 ISO PN64 28

150 (6) 65 520 281 ISO PN64 48

200 (8) 65 520 334 ISO PN64 48

DET170-2"1/2 Pressure regulatorConnections

DN NPS


merocat-03-5

SMT

merocat-03-5

SMT

REGULATOR - DET170 SERIESREGULATOR - DET170 SERIES

WORKING PRINCIPLE TYPICAL INSTALLATION DIAGRAM

OUTLINE DIMENSIONS

ROTAREXGroup

ROTAREXGroup

Entrée de la pression avale

Vers obturateur de sécurité Action intégrale

Entrée de la pression de consigne

FAF

ØA

ØD

S

SENS DU GAZ

COLLET AMONT

COLLET AVAL

BRIDE TOURNANTE

BRIDE TOURNANTE


An output signal (Pc) generated by a pressure regulator and back pressure regulator (DD1) , is applied to one face of the diaphragm (M). The downstream pressure (controlled pressure P2) feeds back a rear chamber located on the other face of the diaphragm (M). The diaphragm moves until it reaches an equilibrium position. The plug which is linked to the diaphragm valve, opens and closes the seat orifice (S) until the output signal equals the downstream pressure. As the gas flow requirement increases the downstream pressure decreases. As the result, the diaphragm (M) moves backwards to reach a new position where a wider opening allows a greater gas flow. If the gas flow requirement decreases the downstream pressure increases . As the result, the diaphragm (M) moves forwards to reach a new position where a smaller opening reduces the gas flow.

Safety Plug ValveOptionally, the pressure regulator can be fitted with a safety plug valve. This device can be operated according to different safety sequences depending upon designs and connections non-return valve function : the safety plug valve is connected directly to the downstream piping (downstream pressure), in case the downstream pressure increase, the safety plug valve shuts immediately [upstream pressure (P1) less than the downstream pressure (P2)]. Emergency shut-off: Provided that an appropriate slaving system is available, the safety plug interrupts the gas flow when the relief pressure exceeds a lower and/or an upper limit.

Damper needle valveThe output signal in the chamber is applied to the face of the diaphragm through a narrow opening which is fitted with a needle valve. Throttling the opening with the needle valve regulates the velocity at which the set pressure is applied to the diaphragm. It is then possible to damp the oscillations which would result from immediate responses to variations of the pressure unbalance. In other words, the needle valve allows the response time to be optimised

Connection:The input and output connections are rotating flanges mounted onto the divergent inlet and outlet Dimensions and configurations are selected according to the flow, pressure and nominal diameters of the piping system.

The standard control manifold of DET170 consists of:

The upstream loop:The fluid needed to build the output signal is taken out upstream from the process piping and connected to the pressure regulator through 8x10mm tubing via an isolating ball valve and a filter. This upstream pressure can be read on a Pressure Indicator controlled by an isolating ball valve. The regulator reduces this upstream pressure to the set value. The output signal feeds the rear chamber of the DET170 through a tubing fitted with an isolating valve, pressure indicator, and a vent fittingAn additional back pressure regulator ensures that the pressure in that part of the manifold is always smaller than or equal to the set pressure.

Downstream loop:The downstream pressure is connected to the front chamber of the regulator through tubing. Other components on this loop are a line valve and a pressure indicator with isolating valve

2726

DS A B FAF Weight


50 (2) 25 270 ISO PN64 22

65 (2,5) 25 270 ISO PN64 28

80 (3) 25 270 ISO PN64 48

80 (3) 25 270 ISO PN64 48

DET170-1" Pressure regulatoConnections

DN NPSDS A B FAF Weight


80 (3) 65 520 188 ISO PN64 22

100 (4) 65 520 200 ISO PN64 28

150 (6) 65 520 281 ISO PN64 48

200 (8) 65 520 334 ISO PN64 48

DET170-2"1/2 Pressure regulatorConnections

DN NPS


Serie DET170 CuAl Copper Alu

CuNi Copper Nickel

25mm 1''

65mm 2''1/2 RF Raised face

FF Flat Face

Other To be given

Dia 50mm (DET 1'') ISO DN50-PN64 (Surface finish to be given

Dia 65mm (DET 1'') ISO DN65-PN64


Dia 80mm (DET 2''1/2) ISO DN80-PN64

Dia 100mm (DET 2''1/2) ISODN100-PN64 - Without

Dia 125mm (DET 2''1/2) ISO DN125-PN64 OS With Safety plug valve



Safety plug valve

Example DET170 - 2''1/2 - ISO DN100 - PN100 - RF - CuAl - OBS

Series - Model

Orifice Size

Connections

Material

Flange

merocat-03-5

SMT

merocat-03-5

SMT

NON-RETURN VALVE

TECHNICAL DATA

REGULATOR - DET170 SERIES

MEROBEL SERIES CAR967

The CAR967 non-return valve is specially designed for piping dedicated to oxidising gas systems such as oxygen, or neutral gas systems. Usually, the CAR967 non-return valves are installed at the outlet of compression stations skids to prevent back-flow to the upstream section. Non-return valves are also used in filtration skids , storage tanks or buffers to prevent any consequences which would result from pressure drops upstream (break downs of compressor or gas flow diverted to others upstream users).

Working PrincipleThe plug is applied against the seat by a spring housed in an axial core. The stem moves by sliding within two bearings. When the upstream pressure is greater than the downstream pressure (together with the force of the spring), the plug moves backward and opens the orifice seat, allowing the gas to flow in the coaxial passage. The gas flow through the CAR967 non return valve following a coaxial. Minimum pressure drop results from this optimised shapingWhen the gas flow stops or when the downstream pressure becomes higher than the upstream pressure, the plug move forward in its closed position pushed by the spring and the back-flow of the fluid

OUTLINE DIMENSIONS

SENS DU GAZ

BRIDE AMONT BRIDE AVALØ

A

ØD

S

FAF

ROTAREXGroup


PRODUCT CODING

2928






Orif ice diameter 25mm (1''), 65mm (2''1/2)

Materials (body and internals) Body bonnet and most internals made of CuAL or CuNi (other material on request)




Electrical conductivity Through a spring inside the plug


Upstream f lange DET170 - 1'' DN50, DN65, DN80 (PN64) (other dimension on request)

Dow nstream f lange DET170 - 1'' DN50, DN65, DN80 (PN64) (other dimension on request)

Upstream f lange DET170 - 2''1/2 DN80 à DN200 (PN64) (other dimension on request)

Dow nstream f lange DET170 - 2 1/2'' DN80 à DN200 (PN64) (other dimension on request)

Faces and f inish RF, FF, RTJ faces other faces on request

Operating Data

Manufacturing Data

Connections

DS A FAF Weight

mm mm mm NF ANSI kg

80 (3) 52 80 170 ISO-PN40 16

150 (6) 92 150 250 ISO-PN40 44

200 (8) 160 200 420 ISO-PN40 112

250 (10) 160 250 460 ISO-PN40 131

300 (14) 220 350 600 ISO-PN40 276

ConnectionsDN NPS


Calculation of maximum flow rates: see section "Technical Appendices"p34

Serie DET170 CuAl Copper Alu

CuNi Copper Nickel

25mm 1''

65mm 2''1/2 RF Raised face

FF Flat Face

Other To be given

Dia 50mm (DET 1'') ISO DN50-PN64 (Surface finish to be given




Dia 100mm (DET 2''1/2) ISODN100-PN64 - Without

Dia 125mm (DET 2''1/2) ISO DN125-PN64 OS With Safety plug valve



Safety plug valve

Example DET170 - 2''1/2 - ISO DN100 - PN100 - RF - CuAl - OBS

Series - Model

Orifice Size

Connections

Material

Flange

merocat-03-5

SMT

merocat-03-5

SMT

NON-RETURN VALVE

TECHNICAL DATA

REGULATOR - DET170 SERIES

MEROBEL SERIES CAR967

The CAR967 non-return valve is specially designed for piping dedicated to oxidising gas systems such as oxygen, or neutral gas systems. Usually, the CAR967 non-return valves are installed at the outlet of compression stations skids to prevent back-flow to the upstream section. Non-return valves are also used in filtration skids , storage tanks or buffers to prevent any consequences which would result from pressure drops upstream (break downs of compressor or gas flow diverted to others upstream users).

Working PrincipleThe plug is applied against the seat by a spring housed in an axial core. The stem moves by sliding within two bearings. When the upstream pressure is greater than the downstream pressure (together with the force of the spring), the plug moves backward and opens the orifice seat, allowing the gas to flow in the coaxial passage. The gas flow through the CAR967 non return valve following a coaxial. Minimum pressure drop results from this optimised shapingWhen the gas flow stops or when the downstream pressure becomes higher than the upstream pressure, the plug move forward in its closed position pushed by the spring and the back-flow of the fluid

OUTLINE DIMENSIONS

SENS DU GAZ

BRIDE AMONT BRIDE AVAL

ØA

ØD

S

FAF

ROTAREXGroup


PRODUCT CODING

2928






Orif ice diameter 25mm (1''), 65mm (2''1/2)





Electrical conductivity Through a spring inside the plug


Upstream f lange DET170 - 1'' DN50, DN65, DN80 (PN64) (other dimension on request)

Dow nstream f lange DET170 - 1'' DN50, DN65, DN80 (PN64) (other dimension on request)

Upstream f lange DET170 - 2''1/2 DN80 à DN200 (PN64) (other dimension on request)

Dow nstream f lange DET170 - 2 1/2'' DN80 à DN200 (PN64) (other dimension on request)

Faces and f inish RF, FF, RTJ faces other faces on request

Operating Data

Manufacturing Data

Connections

DS A FAF Weight

mm mm mm NF ANSI kg

80 (3) 52 80 170 ISO-PN40 16

150 (6) 92 150 250 ISO-PN40 44

200 (8) 160 200 420 ISO-PN40 112

250 (10) 160 250 460 ISO-PN40 131

300 (14) 220 350 600 ISO-PN40 276

ConnectionsDN NPS


Calculation of maximum flow rates: see section "Technical Appendices"p34

merocat-03-5

SMT

merocat-03-5

SMT

INSULATING JOINTS

PRODUCT CODING

TECHNICAL DATA

NON-RETURN VALVE CAR967 SERIES

MEROBEL SERIES IF78

CAR967 CuAl cupro-aluminium

CuNi cupro-nickel

Ø 52 mm DS52 Type de face de bride

Ø 92 mm DS92 RF Face surélevée

Ø 160 mm DS160 FF Face plate

Ø 220 mm DS220 RTJ Face de joint annulaire

Autre A définir

DN80-PN40 Ø 80 mm

DN150-PN40 Ø 150 mm

DN200-PN40 Ø 200 mm

DN250-PN40 Ø 250 mm

DN350-PN40 Ø 350 mm

Connexion

Exemple: CAR967\ DS92\ ISO PN40-DN150\ RF\ CuNi

Matière

Diamètre au siège

Série

ROTAREXGroup


The IF78 insulating joint is made of a set of two pipe elements separated by a dielectric material.The IF78 insulating joint provide a permanent electrical discontinuity between the part of the installation with cathodic protection and those without it. Typically Insulating Joints interface between Underground- and Aboveground sections of oxygen piping systems

IF78 exists in two versions:- IF78C (Short version: refer to dimension C on the cross-sectional drawing).- IF78L (Long version: refer to dimension L on the cross-sectional drawing), fitted with a 10 potential connection at each end.

3130






Orif ice diameter 52, 92, 160 or 220mm





Electrical conductivity Through a back spring inside the non return valve


Flanges DN80 to ND350 (ISO PN40)

Faces and f inish RF, FF, RTJ faces (other faces and f inish on request

Operating Data

Manufacturing Data

Connections


merocat-03-5

SMT

merocat-03-5

SMT

INSULATING JOINTS

PRODUCT CODING

TECHNICAL DATA

NON-RETURN VALVE CAR967 SERIES

MEROBEL SERIES IF78

CAR967 CuAl cupro-aluminium

CuNi cupro-nickel

Ø 52 mm DS52 Type de face de bride

Ø 92 mm DS92 RF Face surélevée

Ø 160 mm DS160 FF Face plate

Ø 220 mm DS220 RTJ Face de joint annulaire

Autre A définir

DN80-PN40 Ø 80 mm

DN150-PN40 Ø 150 mm

DN200-PN40 Ø 200 mm

DN250-PN40 Ø 250 mm

DN350-PN40 Ø 350 mm

Connexion

Exemple: CAR967\ DS92\ ISO PN40-DN150\ RF\ CuNi

Matière

Diamètre au siège

Série

ROTAREXGroup


The IF78 insulating joint is made of a set of two pipe elements separated by a dielectric material.The IF78 insulating joint provide a permanent electrical discontinuity between the part of the installation with cathodic protection and those without it. Typically Insulating Joints interface between Underground- and Aboveground sections of oxygen piping systems

IF78 exists in two versions:- IF78C (Short version: refer to dimension C on the cross-sectional drawing).- IF78L (Long version: refer to dimension L on the cross-sectional drawing), fitted with a 10 potential connection at each end.

3130






Orif ice diameter 52, 92, 160 or 220mm





Electrical conductivity Through a back spring inside the non return valve


Flanges DN80 to ND350 (ISO PN40)

Faces and f inish RF, FF, RTJ faces (other faces and f inish on request

Operating Data

Manufacturing Data

Connections


merocat-03-5

SMT

RACCORS ISOLANTS


WORKING PRINCIPLE

The insulating gasket itself is made of enamelled steel set between two flanges. This gasket offers an outstanding electrical resistivity together with a perfect compatibility with oxygen. The in - outlet sealing between the gasket and the two flanges is achieved by using FPM rings. The two flanges are tightened together with bolts, washers and nuts that are electrically protected though polymer coating (PVDF or Polyefine)The Isolating joints are delivered fully assembled. The connection to the piping system is achieved by welding either direct (IF78C version) or tube extensions (IF78L version)


OUTLINE DIMENSIONS

SMTSMT

ISOLATING JOINTS IF78 SERIES

merocat-03-5 ROTAREXGroup



PRODUCT CODING

Version courte IF78C A préciser

Version longue IF78L

DN50-PN100 Ø 50mm

DN80-PN100 Ø 80mm AC Acier

DN100-PN100 Ø 100mm INOX Inox

DN150-PN100 Ø 200mm Autre A préciser

DN200-PN100 Ø 200mm

DN250-PN100 Ø 250mm

DN300-PN100 Ø 300mm

Autre A préciser

Matière des brides

Exemple: IF78C \ DN200 - PN100 \ AC-INOX \ SCHEDULE 40

ScheduleRaccord isolé

Connexion

3332

1 2 3 4 5 6 7 8 9 10 11

Type IF78C C

Type IF78L L

E

Ø10

Part Name Material

1 Electrical Connection (IF78L only) Steel

2 Coated bolt Steel

3 Nut Steel

4 Washer Steel

5 Isolating washer PVDF

6 Flanges Acc. To request

7 Enamelled Gasket Enamelled steel

8 Sheath Polefine

9 O ring FPM

10 Pipe extension Acc. To request

11 Label (IF78L only) Brass

DN NPS E (mm) L (mm) C (mm) Shedule (ANSI)

32 1 1/4 20 450 148 to be given

40 1 1/2 20 450 154 to be given

5 2 20 500 161 to be given

65 2 1/2 20 500 174 to be given

80 3 20 600 188 to be given

100 4 20 600 218 to be given

150 6 20 700 250 to be given

200 8 20 800 282 to be given

250 10 20 900 320 to be given

300 12 20 1000 326 to be given

350 14 20 1000 345 to be given

400 16 20 1000 373 to be given

450 18 20 1200 383 to be given

500 20 20 1200 396 to be given

Operating press. range (PS) 0 to 150 bar depending on types and sizes



Installation Vertical axe

Materials (up and dow nstream f langes) Steel or Stainless Steel

In- Outboard tightness O-rings made of FPM (or special polymer for T°C dow n to -40°C

Isolating gasket Enamelled steel

Production tests Individual test (measurement of resistivity at 5kV)

Dimnesions ND 32 to ND500 (ISO NP40 to NP150 standard f langes)

Welding ends Schedule to be given (in accordance w ith ANSI B16.5

Operating Data

Manufacturing Data

Connections


merocat-03-5

SMT

RACCORS ISOLANTS


WORKING PRINCIPLE

The insulating gasket itself is made of enamelled steel set between two flanges. This gasket offers an outstanding electrical resistivity together with a perfect compatibility with oxygen. The in - outlet sealing between the gasket and the two flanges is achieved by using FPM rings. The two flanges are tightened together with bolts, washers and nuts that are electrically protected though polymer coating (PVDF or Polyefine)The Isolating joints are delivered fully assembled. The connection to the piping system is achieved by welding either direct (IF78C version) or tube extensions (IF78L version)


OUTLINE DIMENSIONS

SMTSMT


merocat-03-5 ROTAREXGroup



PRODUCT CODING

Version courte IF78C A préciser

Version longue IF78L

DN50-PN100 Ø 50mm

DN80-PN100 Ø 80mm AC Acier

DN100-PN100 Ø 100mm INOX Inox

DN150-PN100 Ø 200mm Autre A préciser

DN200-PN100 Ø 200mm

DN250-PN100 Ø 250mm

DN300-PN100 Ø 300mm

Autre A préciser

Matière des brides

Exemple: IF78C \ DN200 - PN100 \ AC-INOX \ SCHEDULE 40

ScheduleRaccord isolé

Connexion

3332

1 2 3 4 5 6 7 8 9 10 11

Type IF78C C

Type IF78L L

E

Ø10

Part Name Material

1 Electrical Connection (IF78L only) Steel

2 Coated bolt Steel

3 Nut Steel

4 Washer Steel

5 Isolating washer PVDF

6 Flanges Acc. To request

7 Enamelled Gasket Enamelled steel

8 Sheath Polefine

9 O ring FPM

10 Pipe extension Acc. To request

11 Label (IF78L only) Brass

DN NPS E (mm) L (mm) C (mm) Shedule (ANSI)

32 1 1/4 20 450 148 to be given

40 1 1/2 20 450 154 to be given

5 2 20 500 161 to be given

65 2 1/2 20 500 174 to be given

80 3 20 600 188 to be given

100 4 20 600 218 to be given

150 6 20 700 250 to be given

200 8 20 800 282 to be given

250 10 20 900 320 to be given

300 12 20 1000 326 to be given

350 14 20 1000 345 to be given

400 16 20 1000 373 to be given

450 18 20 1200 383 to be given

500 20 20 1200 396 to be given

Operating press. range (PS) 0 to 150 bar depending on types and sizes



Installation Vertical axe

Materials (up and dow nstream f langes) Steel or Stainless Steel

In- Outboard tightness O-rings made of FPM (or special polymer for T°C dow n to -40°C

Isolating gasket Enamelled steel

Production tests Individual test (measurement of resistivity at 5kV)

Dimnesions ND 32 to ND500 (ISO NP40 to NP150 standard f langes)

Welding ends Schedule to be given (in accordance w ith ANSI B16.5

Operating Data

Manufacturing Data

Connections


merocat-03-5

SMT

APPENDICES

TECHNICAL APPENDICES

ROTAREXGroup

PRELIMINARY COMMENT ABOUT THE USE OF MEROBEL PRODUCTS

In order to guarantee the best service of installation and maximum safety for operators, it is essential to comply with the rules of good service and operation practices as well as usual standards and regulations. It is also important to keep in mind all the instructions and recommendations for commissioning and operation as given in the instruction manual delivered with each Merobel product

DIRECTIVE 97/23/EC "PRESSURE EQUIPMENT DIRECTIVE" (PED)

All the Merobel products systematically comply with and exceed the requirements of the directive "Equipment Under Pressure" 97/23/CE. Associated with SMT's knowledge in the field of oxygen high-pressure, this conformity ensures an unequalled level of safety in operation and service. According to classification, the CE marking of products is specified as follows: The product is marked EC on the plate of identification and therefore complies with all the requirements of the directive in the applicability concerned. Conformity with these requirements is validated by a notified and independent European organization. The product does not bear the CE hallmark and complies with the article 3§3 called "Régles of art”. Translation ?? Working rules ?? The product is just a component or a part of a sub- assembly (such as an insolating joint, flanges, gasket...) which does not bear the EC hallmark but complies with high level traceability standards

DIRECTIVE 94/9/EC "POTENTIALLY EXPLOSIVE ATMOSPHERES" (ATEX)

CONVERSION CHART FROM BAR TO PSI

bar 40 50 60 64 75 96 100 150

psi 580 725 870 930 1088 1395 1450 2175

1 bar = 14,5 psi

EQUIVALENCE CHART BETWEEN ISO PN STANDARD AND ANSI STANDARD

ISO PN (NF E29-203) ISO-PN20 ISO-PN50 ISO-PN100 ISO-PN150 ISO-PN250 ISO-PN420

Class (ANSI B16.5) 150 300 600 900 1500 2500

merocat-03-5ROTAREXGroup www.rotarex.com - email: [email protected]

SMT

APPENDICES

Definition of an explosive atmosphere: "Mixture within the air, under the atmospheric conditions, of flammable substances in the form of gas, vapour, mist or dust, in which, after ignition, combustion is propagated with the whole of the mixture not flaring"

Definition of an explosible atmosphere: "Atmosphere likely to become explosive in consequence of the local and operational conditions."

The ATEX Directive concerns equipment used in explosible atmospheres. The MEROBEL products are used for transmission and distribution of gaseous oxygen or neutral gases, they do not generate explosible atmospheres. Therefore, they are not subject to the AYEX directive ATEX and do not bear the EC hallmark related to the ATEX. However, if the zone (area) in which a MEROBEL product is installed is declared explosible by the final user and made known to SMT, then SMT will issue an information note based on a risk analysis specifying the utilisation zone (0, 1 or 2) of the product.

EQUIVALENCE CHART BETWEEN DN STD AND NPS STD (ACCORDING TO EN12288)

DN

DN

8DN

10

DN

15

DN

20

DN

25

DN

32

DN

40

DN

50

DN

65

DN

80

DN

100

DN

125

DN

150

DN

200

DN

250

DN

300

DN

350

DN

400

DN

450

DN

500

NPS 1/4 3/8 1/2 3/4 1 1 1/4 1 1/2 2 2 1/2 3 4 5 6 8 10 12 14 16 18 20

DIAMETRE NOMINAL

3534


merocat-03-5

SMT

APPENDICES

TECHNICAL APPENDICES

ROTAREXGroup

PRELIMINARY COMMENT ABOUT THE USE OF MEROBEL PRODUCTS

In order to guarantee the best service of installation and maximum safety for operators, it is essential to comply with the rules of good service and operation practices as well as usual standards and regulations. It is also important to keep in mind all the instructions and recommendations for commissioning and operation as given in the instruction manual delivered with each Merobel product

DIRECTIVE 97/23/EC "PRESSURE EQUIPMENT DIRECTIVE" (PED)

All the Merobel products systematically comply with and exceed the requirements of the directive "Equipment Under Pressure" 97/23/CE. Associated with SMT's knowledge in the field of oxygen high-pressure, this conformity ensures an unequalled level of safety in operation and service. According to classification, the CE marking of products is specified as follows: The product is marked EC on the plate of identification and therefore complies with all the requirements of the directive in the applicability concerned. Conformity with these requirements is validated by a notified and independent European organization. The product does not bear the CE hallmark and complies with the article 3§3 called "Régles of art”. Translation ?? Working rules ?? The product is just a component or a part of a sub- assembly (such as an insolating joint, flanges, gasket...) which does not bear the EC hallmark but complies with high level traceability standards

DIRECTIVE 94/9/EC "POTENTIALLY EXPLOSIVE ATMOSPHERES" (ATEX)

CONVERSION CHART FROM BAR TO PSI

bar 40 50 60 64 75 96 100 150

psi 580 725 870 930 1088 1395 1450 2175

1 bar = 14,5 psi

EQUIVALENCE CHART BETWEEN ISO PN STANDARD AND ANSI STANDARD

ISO PN (NF E29-203) ISO-PN20 ISO-PN50 ISO-PN100 ISO-PN150 ISO-PN250 ISO-PN420

Class (ANSI B16.5) 150 300 600 900 1500 2500

merocat-03-5ROTAREXGroup www.rotarex.com - email: [email protected]

SMT

APPENDICES

Definition of an explosive atmosphere: "Mixture within the air, under the atmospheric conditions, of flammable substances in the form of gas, vapour, mist or dust, in which, after ignition, combustion is propagated with the whole of the mixture not flaring"

Definition of an explosible atmosphere: "Atmosphere likely to become explosive in consequence of the local and operational conditions."

The ATEX Directive concerns equipment used in explosible atmospheres. The MEROBEL products are used for transmission and distribution of gaseous oxygen or neutral gases, they do not generate explosible atmospheres. Therefore, they are not subject to the AYEX directive ATEX and do not bear the EC hallmark related to the ATEX. However, if the zone (area) in which a MEROBEL product is installed is declared explosible by the final user and made known to SMT, then SMT will issue an information note based on a risk analysis specifying the utilisation zone (0, 1 or 2) of the product.

EQUIVALENCE CHART BETWEEN DN STD AND NPS STD (ACCORDING TO EN12288)

DN

DN

8DN

10

DN

15

DN

20

DN

25

DN

32

DN

40

DN

50

DN

65

DN

80

DN

100

DN

125

DN

150

DN

200

DN

250

DN

300

DN

350

DN

400

DN

450

DN

500

NPS 1/4 3/8 1/2 3/4 1 1 1/4 1 1/2 2 2 1/2 3 4 5 6 8 10 12 14 16 18 20

DIAMETRE NOMINAL

3534


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SMT

ANNEXE

ROTAREXGroup

TYPICAL INSTALLATION DIAGRAMS

SCHEMATIC DIAGRAM OF PNEUMATIC ACTUATED INSTALLATIONS

Pneumatic actuated gate valve without by-passPneumatic actuated gate valve with by-pass and one pneumatic actuated for by-pass valvePneumatic actuated gate valve with by-pass and one pneumatic actuated valve for by-pass valve and one pneumatic actuated valve for switch-over

merocat-03-5

SMT

APPENDICES

ROTAREXGroup

PRODUCTION TESTS

At the final production stage, each Merobel product is individually tested: Hydraulic test, Leak tightness test, operating function test ( Open/Close, limit switches), electrical continuity test

DOCUMENTS

Documents delivered with each Merobel component:• Cross section drawing as built

Parts listCertificate of conformity and/or compliance (tests results)Bills of Material certificatesInstructions ManualDeclaration of conformity for "CE" markInformation note confirming that the product is in strict conformity with the "PED" directive

for “CE" mark

• • • • • •

CONNECTIONS

Note: When the operating pressure is different from the nominal pressure of flanged connections, the pressure to be considered in the lowest pressure

The usual standards applicable for flanges are NF E29-203 for ISO PN40, ISO PN50 and ISO PN100 unitsNF E29-226 for PN64 unitsANSI B16.5 for class 300 and 600 units

The current face types and finishes are:

Désignation suivant NF Désignation suivant ANSI Profil Type de face Finition

A FF Face plate

Ra 6,3 à 12,5 pour ISO

PN2,5 à ISO PN50


PN100 à ISO PN420

B1(ISO PN20 - ISO PN50)

ou B2( ISO PN100 - ISO

PN150 - ISO PN 250 - ISO

PN 420)

RF Face surélevée


PN2,5 à ISO PN50


PN100 à ISO PN420

J RTJ Face de joint annulaire Ra 0,8 à 1,6

APPENDICES

3736

Shut-Off valves for piping systems having 15 bar maximum working pressure and pipe diameter below 80 mm

Valves with manual actuation Valves with pneumatic actuation

Shut-Off Valves fitted with by-pass valves for piping systems having more than 15 bar maximum working pressure and pipe diameter larger than 80 mm


Piping sytems with safety buffer secured by two Shut-Off Valves and a purge valve

PurgePurge valve with pneumatic actuator

B

B


merocat-03-5

SMT

ANNEXE

ROTAREXGroup

TYPICAL INSTALLATION DIAGRAMS

SCHEMATIC DIAGRAM OF PNEUMATIC ACTUATED INSTALLATIONS

Pneumatic actuated gate valve without by-passPneumatic actuated gate valve with by-pass and one pneumatic actuated for by-pass valvePneumatic actuated gate valve with by-pass and one pneumatic actuated valve for by-pass valve and one pneumatic actuated valve for switch-over

merocat-03-5

SMT

APPENDICES

ROTAREXGroup

PRODUCTION TESTS

At the final production stage, each Merobel product is individually tested: Hydraulic test, Leak tightness test, operating function test ( Open/Close, limit switches), electrical continuity test

DOCUMENTS

Documents delivered with each Merobel component:• Cross section drawing as built

Parts listCertificate of conformity and/or compliance (tests results)Bills of Material certificatesInstructions ManualDeclaration of conformity for "CE" markInformation note confirming that the product is in strict conformity with the "PED" directive

for “CE" mark

• • • • • •

CONNECTIONS

Note: When the operating pressure is different from the nominal pressure of flanged connections, the pressure to be considered in the lowest pressure

The usual standards applicable for flanges are NF E29-203 for ISO PN40, ISO PN50 and ISO PN100 unitsNF E29-226 for PN64 unitsANSI B16.5 for class 300 and 600 units

The current face types and finishes are:

Désignation suivant NF Désignation suivant ANSI Profil Type de face Finition

A FF Face plate


PN2,5 à ISO PN50


PN100 à ISO PN420

B1(ISO PN20 - ISO PN50)

ou B2( ISO PN100 - ISO

PN150 - ISO PN 250 - ISO

PN 420)

RF Face surélevée


PN2,5 à ISO PN50


PN100 à ISO PN420

J RTJ Face de joint annulaire Ra 0,8 à 1,6

APPENDICES

3736

Shut-Off valves for piping systems having 15 bar maximum working pressure and pipe diameter below 80 mm


Shut-Off Valves fitted with by-pass valves for piping systems having more than 15 bar maximum working pressure and pipe diameter larger than 80 mm


Piping sytems with safety buffer secured by two Shut-Off Valves and a purge valve

PurgePurge valve with pneumatic actuator

B

B


merocat-03-5

SMT

ANNEXE

ROTAREXGroup

APPENDICES

38

HOW TO DETERMINE THE MAX. FLOW RATE FOR A DET170 MEROBEL REGULATOR

Known factors: P1 = Inlet pressure - in bar (absolute pressure)P2 = Outlet pressure - in bar (absolute pressure)K = Flow coefficientNote: The K value is a specific version of a flow coefficient. The K value is a capacity index which describes the capacity of the regulator to be flown by gaseous oxygen.

Unknown factor3Q = Gas flow in Cubic Meter per hour (Nm /h) at 15°C and 1,013 bar

Select the regulator and the corresponding K value

Spheraxial series K Values

DET170-1'' K = 190

DET170-2.5'' K = 1650

Select the equation of flow calculation according to the specified pressure drop

Calculate. See following examples

Pressure drop Type of flow

P1 > 2 x P2 Critical flow (1)

P1 < 2 x P2 Sub-Critical flow (2)

Equation

1PKQ .=

)21. (2..2 PPPKQ -=

Steps Operation Example 1 Example 2 Example 3 Example 4

1 Select the Regulator Type DET170-1’’ DET170-1’’ DET170-2.5’’ DET170-2.5’’

2 Select the according K Value 190 190 1650 1650

3 Consider the P1 Inlet Pressure 41 21 41 21


5 Identify the ration P1 versus P2 P1 > 2x P2 P1 < 2x P2 P1 > 2x P2 P1 < 2x P2

6 Select the right equation (1) or (2) (1) (2) (1) (2)

7 Calculated flow (m3/h) O27790 3400 67650 29500


ØA ØB t

(mm) (mm) (mm)

40 78 5.5

80 73.5 7.6

160 66.5 11.15

XXS 58.5 15.25

40 102 6

80 97 8.55

120 92 11.15

160 87.5 13.5

XXS 80 17.1

40 128 6.55

80 122 9.55

120 116 12.7

160 110 15.9

XXS 103 19.05

40 154 7.1

80 146 10.95

120 140 14.25

160 132 18.25

XXS 124 21.95

40 203 8.2

60 198 10.3

80 194 12.7

100 189 15.05

120 183 18.25

140 178 20.6

XXS 175 22.25

160 173 23

40 255 9.25

60 248 12.7

80 243 15.05

100 237 18.25

120 230 21.4

140 222 25.4

160 216 28.6

STD 305 9.55

40 303 10.3

XS 298 12.7

60 295 14.25

80 289 17.45

100 281 21.4

120 273 25.4

140 267 28.6

160 257 33.3

STD 337 9.55

40 333 11.15

XS 330 12.7

60 325 15.05

80 318 19.05

100 308 23.8

120 300 27.75

140 292 31.75

160 284 35.7

300 12 324

350 14 356

200 8 219

250 10 273

125 5 141

150 6 168

89

100 4 114

DN NPS SCHEDULE

80 3

SCHEDULES

Associated with the nominal diameter (DN), the schedule is the number that identifies the dimensional characteristics of the pipes. The schedule is defined in Standard ANSI B16.5The SCHEDULE specifies the inside/outside diameters of the pipe, its thickness, and the profiles of the weldable ends.Examples: DN100 SCHEDULE 40 or 4" SCHEDULE 80

So that the dimensions required to machine the welding ends of the flanges are clearly defined.

ØA = Nominal outside diameter of pipeØB = Nominal inside diameter of pipet = Nominal wall thickness of pipe

merocat-03-5

SMT

APPENDICES

ROTAREXGroup39


merocat-03-5

SMT

ANNEXE

ROTAREXGroup

APPENDICES

38

HOW TO DETERMINE THE MAX. FLOW RATE FOR A DET170 MEROBEL REGULATOR

Known factors: P1 = Inlet pressure - in bar (absolute pressure)P2 = Outlet pressure - in bar (absolute pressure)K = Flow coefficientNote: The K value is a specific version of a flow coefficient. The K value is a capacity index which describes the capacity of the regulator to be flown by gaseous oxygen.

Unknown factor3Q = Gas flow in Cubic Meter per hour (Nm /h) at 15°C and 1,013 bar

Select the regulator and the corresponding K value

Spheraxial series K Values

DET170-1'' K = 190

DET170-2.5'' K = 1650

Select the equation of flow calculation according to the specified pressure drop

Calculate. See following examples

Pressure drop Type of flow

P1 > 2 x P2 Critical flow (1)

P1 < 2 x P2 Sub-Critical flow (2)

Equation

1PKQ .=

)21. (2..2 PPPKQ -=

Steps Operation Example 1 Example 2 Example 3 Example 4

1 Select the Regulator Type DET170-1’’ DET170-1’’ DET170-2.5’’ DET170-2.5’’

2 Select the according K Value 190 190 1650 1650



5 Identify the ration P1 versus P2 P1 > 2x P2 P1 < 2x P2 P1 > 2x P2 P1 < 2x P2

6 Select the right equation (1) or (2) (1) (2) (1) (2)

7 Calculated flow (m3/h) O27790 3400 67650 29500


ØA ØB t

(mm) (mm) (mm)

40 78 5.5

80 73.5 7.6

160 66.5 11.15

XXS 58.5 15.25

40 102 6

80 97 8.55

120 92 11.15

160 87.5 13.5

XXS 80 17.1

40 128 6.55

80 122 9.55

120 116 12.7

160 110 15.9

XXS 103 19.05

40 154 7.1

80 146 10.95

120 140 14.25

160 132 18.25

XXS 124 21.95

40 203 8.2

60 198 10.3

80 194 12.7

100 189 15.05

120 183 18.25

140 178 20.6

XXS 175 22.25

160 173 23

40 255 9.25

60 248 12.7

80 243 15.05

100 237 18.25

120 230 21.4

140 222 25.4

160 216 28.6

STD 305 9.55

40 303 10.3

XS 298 12.7

60 295 14.25

80 289 17.45

100 281 21.4

120 273 25.4

140 267 28.6

160 257 33.3

STD 337 9.55

40 333 11.15

XS 330 12.7

60 325 15.05

80 318 19.05

100 308 23.8

120 300 27.75

140 292 31.75

160 284 35.7

300 12 324

350 14 356

200 8 219

250 10 273

125 5 141

150 6 168

89

100 4 114

DN NPS SCHEDULE

80 3

SCHEDULES

Associated with the nominal diameter (DN), the schedule is the number that identifies the dimensional characteristics of the pipes. The schedule is defined in Standard ANSI B16.5The SCHEDULE specifies the inside/outside diameters of the pipe, its thickness, and the profiles of the weldable ends.Examples: DN100 SCHEDULE 40 or 4" SCHEDULE 80

So that the dimensions required to machine the welding ends of the flanges are clearly defined.

ØA = Nominal outside diameter of pipeØB = Nominal inside diameter of pipet = Nominal wall thickness of pipe

merocat-03-5

SMT

APPENDICES

ROTAREXGroup39


SMT

information

e-mail: [email protected]

website: www.rotarex.com

Rotarex UK LtdRedland Close,Coventry,West MidlandsCV2 2NP

Tel: 024 7662 2675Fax: 024 7662 1971Email: [email protected]

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