BOMAFA: THE NUMBER ONE SPECIALIST IN INDIVIDUAL SOLUTIONS
BOMAFA develops and produces high quality valves for stem, gas and water. The valves are used inconvention and nuclear power stations, chemical and petrochemical plants and range of other industrial applications.
Our extensive rang of custom manufactured valves is of the highest is quality and renowned for their impressive durability.
Our product range consists of :
The construction is made in accordance with the requirements of modem construction techniques and of current statutory regulations.
This is how we work-Applying the highest quality with the greatest professionalism :
01. Safety Relief Valve
02 HP Bypass Valve
03. LP Bypass Valve
04. Spray Water Valve
05. Extraction Valve
06. Desuperheaters Combined
07. Desuperheaters Stand Alone
08. PRDS Valve
09. Dump Tube
10. Spray Nozzle
11. Customized Control Valve
12. Steam Engineering Equipment
Low noise designed special valve.Short maintenance time thanks to easily removable internal components.Highly robust yet easy to disable, if required.High Precision.Design that takes in to account plant outlay. Shortmaintenance time thanks to easily removable internalcomponents.
2
INHOUSE SOLIDWORKS FLOW SIMULATION PROJECT REPORT
BOMAFA Special
Valve Solutions P
rivate Limited
SOLIDWORKS Fl
ow Simulation
Project Report
Fluid Flow Simulation Report
2. Results
2.1 Analysis Goals
Name Unit Value Progress Use in convergence
SG Mass Flow Rate kg/s 1.6632 100 On
SG Av Velocity m/s 295.091 100 On
2.2 Results
2.2.1 Contour of Pressure :
Fluid Flow Simula
tion Report
2.2.2 Contour of V
elocity :
Fluid Flow Simulation Report2.2.3 Contour of Density :
3
Safety valves are pressure relieving device to release the excess pressure built up during the operation of the equipment on which they are mounted. They protect the equipment that can be destroyed by the excess pressure built up by rapidly releasing the unwanted excess pressure. The Bomafa safety valves offer the reliable and proven protection against over pressure in any applications of steam , gas or liquid service.
In normal operation of the equipment, safety valves mounted are closed by seat tightness according to API 527 achieved from the external forces provided by the spring mounted in the bonnet. The seat tightness achieved over a long period of operation in Bomafa safety valves is by the special design of free floating disc mounted in the disc guide that is guided in the guide with precise tolerances. The nozzle is either screwed in the body in flanged safety valves and screwed and welded construction in buttweld and safety valves. In the safety valves with single blowdown ring the adjustment of blowdown is carried out by adjusting ring which is provided at the upper end of the nozzle. In case of safety valves with double blowdown ring, the upper ring is used to fine adjust the blow down Petrochemical Industry and the lower ring is used to assist the pop action. The back pressure can be adjusted by the back pressure adjustment needle mounted in the back pressure housing. The springs are either coil spring or Belleville - disc spring mounted in the open or close bonnet construction to achieve the required opening pressure.
The safety valves are designed according to API 526 from inlet sizes 1” to 8” and the orifice designation from D to T. The safety valves are designed to meet the maximum over pressure of 10% in case of compressible fluids and 25% in case of non compressible fluids. The safety valves have a maximum blowdown of 5% in case of steam and gas. The maximum blow down for liquid service is 25%. Major body and bonnet materials include ASTM SA 216 GR WCB, ASTM SA 217 GR WC6, ASTM SA 217 GR WC9, ASTM SA 217 GR WC9, C12A, austenitic as well as low temperature material grades.
General Information
Construction
Design
INFORMATION
One design for steam, gas and liquid makes it easy for the replacements. Flanged as well as butt weld designs available as per customer requirements.
Plasma nitride guiding parts for high temperature service insures the required hardness of 600 V to 700 V for tight seating surfaces and free moment of sliding parts to have excellent repeatability and reliability. Hard faced trim with stellite also available on request. Soft seat construction available on request. Closed or open bonnet with packed or conventional lifting lever.
Test gag optional on request.
Heavy duty spindle and guide for accurate and consistent operation at all pressure and temperature.
Flanged and butt weld end connections to meet all national and international standards for mounting and installation.
Drain point at the lowest section of body to eliminate and drain the liquid and or residue that may be accumulated over time.
Balanced bellow design available for compensating the back pressure.
Process Industry
Power
Chemical Industry
Petrochemical Industry
Storage vessel Piping
Sugar
Pulp & Paper
Nuclear
Pharmaceutical
Application
Highlights
4
A spring loaded pressure relief valve actuated by the static pressure upstream of the valve and characterised by rapid opening or pop action. A safety valve is normally used with compressible fluids. A spring loaded pressure relief valve that may be used as either a safety or relief valve depending on the application. A spring loaded pressure relief valve actuated by the static pressure upstream of the valve. The valve opens normally in proportion to the pressure increase over the opening pressure. The relief valve is use primarily with incompressible fluid. The audible or visible escape of compressible fluid between the seat and disc of a pressure relief valve that may occur at an inlet static pressure below the set pressure prior to opening. The value of increasing static pressure at which there is a measurable lift of the disc or at which discharge of the fluid becomes continuous, as determined by seeing, feeling or hearing.
The inlet gauge pressure at which the pressure relief device is set to open under service conditions.
The pressure increase over the set pressure of the relieving device. Over pressure is expressed in pressure units or as a percentage of set pressure. Over pressure is the same as accumulation only when the relieving device is set to open at the MAWP of the vessel. The pressure increase over the MAWP of the vessel, expressed in pressure units or as a percentage of the MAWP or design pressure.
The difference between the set pressure and the closing pressure of a pressure relief valve, expressed as a percentage of the set pressure or in pressure units.
The value of decreasing inlet static pressure at which the valve disc re-establishes contact with the seat or at which lift becomes zero as determined by seeing, feeling or hearing.
A nominal area used with an effective discharge coefficient to calculate the relieving capacity of a pressure relief valve per preliminary sizing equations.
The actual travel of the disc from the closed position when a valve is relieving. The maximum gauge pressure permissible at the top of a completed vessel in its normal operating position at the designated coincident temperature specified for that pressure.
Safety Valve
Safety relief valve
Relief valve
Simmer
Opening pressure
Set Pressure
Over pressure
Accumulation
Blow down
Closing pressure
Effective discharge area / Effective orifice area
Lift
Maximum allowable working pressure (MAWP)
The MAWP is the basis for the pressure setting of the pressure relief devices that protect the vessel. The MAWP is normally greater than the design pressure but can be equal to the design pressure when the design rules used only to calculate the minimum thickness for each element and the calculations are not made to determine the value of MAWP. The specified inlet static pressure at which a seat leak test is performed. The abnormal, rapid reciprocating motion of the movable parts of the pressure relief valve. During the fluttering, the disc does not contact the seat or the upper stop. The opening and closing of pressure relief valve at a very high frequency ( on the order of natural frequency of the valves spring mass system). A nominal value used with an effective discharge area to calculate the relieving capacity of a pressure relief valve per the preliminary sizing equation. The ratio of the mass flow rate in a valve to that of an ideal nozzle. The coefficient of discharge is used for calculating flow thru a pressure relief device. The rated capacity of steam, air, gas or water as required by applicable code. The area of the cylindrical or conical discharge opening between the seating surfaces above the nozzle seat created by the lift of the disc.
An annular chamber located at the down stream of the seat of a pressure relief valve for the purpose of assisting the valve to achieve lift. The pressure at which a pressure relief valve is adjusted to open on the test stand. The CDTP includes corrections for the service conditions of back pressure or temperature or both. The pressure that exists at the outlet of a pressure relief device as result of the pressure in the discharge system. Back pressure is the sum of superimposed and built up back pressures. The increase in pressure at the outlet of the pressure relief device that develops as a result of flow after the pressure relief device opens. The static pressure that exists at the outlet of a pressure relief device at the time the device is required to operate. Superimposed back pressure is the result of pressure in the discharge system coming from other sources and may be constant or variable..
Leak test pressure
Flutter
Chatter
Effective coefficient of discharge
Coefficient of discharge
Capacity
Curtain area
Huddling Chamber
Cold differential test pressure (CDTP )
Back pressure
Built up back pressure
Superimposed back pressure
TERMS & DEFINITIONS
5
SAFETY VALVE CODE SYSTEM
Symbol Regula n
SVA ASMESVI IBR
Code Size
A 150#B 300#C 600#D Special
Code
M FlangedN Welded
Code Size
10 2520 4030 5040 6550 8060 10070 15080 20090 250
100 SpecialCode
M FlangedN Welded
Code
Code Nozzle
N1 DN2 EN3 FN4 GN5 HN6 JN7 KN8 LN9 M
N10 NN11 PN12 QN13 RN14 TN15 Special
Y OpenZ Close
Code Size
30 50 Code40 6550 80 J Yes60 100 K No70 15080 20090 250
100 SpecialCode
L YesM No
Code Size
A 150#B 300#C 600# CodeD 900#E 1500# 1 SingleF 2500# 2 DoubleG Special
Example:-SVA - 30 X N6 X 50 - B X A - M X N - R - Y X K - M - 2ASME - 50 X J X 80 - 300# X 150# - Flanged X Flanged - A 216 Gr WCB - Open Cap X No Test Gag - No Bellow - Double Blow Down Ring
Outlet Connec on
Inlet Size
Outlet Size
Nozzle
Code
R A 216 Gr WCBS A 217 Gr WC6T A 217 Gr WC9U A 217 C 12 A
AusteStainless Steel
W Special
V
Body Material Code
Bellow
Series Code
CAP Construc on
Test Gag
Blow Down Ring
Ra
Ra
Inlet Connec on
1 2 3 4 5
6
7
6 7 9 108
8
9
1
2
3
4
5
11
10
11
12
12 13
13
X X X X X
6
FULLY CLOSE
WARN PRESSURE FULLY OPEN
SAFETY VALVE OPENING PATTERN
7
12
10
14
8
21
18
22
27
19
20
23
24
17
26
25
13
15
16
1
3
2
7
4
6
5
9
11
8
16
25
20
26
29
21
22
24
27
19
28
23
15
17
18
13
11
1
3
7
4
6
5
9
12
10
14
2
SAFETY VALVE WITH COIL SPRING AND SINGLE BLOW DOWN RING
ITEM NO. DESIGNATION
1 BODY
2 NOZZLE
3 BLOW DOWN RING
4 BLOW DOWN RING PIN
5 LOCK
6 SEAL
7 DISC
8 SPINDLE
9 DISC GUIDE
10 SPINDLE LOCK NUT
11 SPINDLE PIN
12 GUIDE
13 LOWER SPRING BUTTON
14 SPRING
15 UPPER SPRING BUTTON
16 BONNET
17 BODY STUD BOLT
18 BODY NUT
19 SET SCREW
20 SET SCREW NUT
21 SPINDLE NUT
22 CAP
23 CAP PIN
24 LEVER PLATE
25 HANDLE
26 PIN-1
27 PIN-2
28 CAP PIN NUT
29 NUT
ITEM NO. DESIGNATION1 BODY
2 NOZZLE
3 BLOW DOWN RING
4 BLOW DOWN RING PIN
5 LOCK
6 SEAL
7 DISC
8 SPINDLE
9 DISC GUIDE
10 SPINDLE LOCK NUT
11 SPINDLE PIN
12 GUIDE
13 DISC SPRING
14 BONNET
15 BODY STUD BOLT
16 BODY NUT
17 SET SCREW
18 SET SCREW NUT
19 SPINDLE NUT
20 CAP
21 HANDLE
22 PIN-1
23 LEVER PLATE
24 PIN-2
25 CAP PIN
26 CAP PIN NUT
27 NUT
SAFETY VALVE WITH DISC SPRING AND SINGLE BLOW DOWN RING
2
1
BUTTWELD END
2
1
BUTTWELD END
8
19
3
24
25
31
21
2
12
15
14
5
16
17
30
26 28
32
34
29
9
20
22
23
18
13
11
8
33
1
4
7
6
10
27 ITEM NO. DESIGNATION1 BODY2 NOZZLE3 BLOW DOWN RING4 BLOW DOWN RING PIN 5 BLOW DOWN RING PIN -26 LOCK7 SEAL8 DISC9 SPINDLE10 DISC GUIDE11 SPINDLE LOCK NUT12 SPINDLE PIN13 GUIDE 14 BLOW DOWN RING-215 HOUSING16 REGULATING PIN17 SPINDLE GUIDE18 LOWER SPRING BUTTON19 SPRING20 UPPER SPRING BUTTON21 BONNET22 BODY STUD BOLT23 BODY NUT24 SET SCREW25 SET SCREW NUT26 SPINDLE NUT27 NUT28 CAP29 HANDLE30 LEVER PLATE31 PIN-132 PIN-233 CAP PIN34 CAP NUT
& BACK PRESSURE ADJUSTMENTSAFETY VALVE WITH COIL SPRING WITH DOUBLE BLOW DOWN RING
2
1
BUTTWELD END
ITEM NO. DESIGNATION1 BODY2 NOZZLE3 BLOW DOWN RING4 BLOW DOWN RING PIN -25 BLOW DOWN RING PIN 6 SEAL7 LOCK8 DISC9 SPINDLE
10 DISC GUIDE11 SPINDLE LOCK NUT12 SPINDLE PIN13 GUIDE 14 BLOW DOWN RING-215 HOUSING16 REGULATING PIN17 SPINDLE GUIDE18 DISC SPRING19 BONNET20 BODY STUD BOLT21 BODY NUT22 SPINDLE NUT23 SET SCREW24 SET SCREW NUT25 CAP26 HANDLE27 PIN-128 LEVER PLATE29 PIN-230 CAP PIN31 NUT32 CAP NUT
& BACK PRESSURE ADJUSTMENT SAFETY VALVE WITH DISC SPRING WITH DOUBLE BLOW DOWN RING
BUTTWELD END
2
1
23
12
8
27
3122
2829
25
32
30
19
9
21
15
13
11
1
2
3
5
7
14
4
10
17
16
20
18
26
24
6
9
35
36
30
33
31
29
34
28
2
1
3
4
7
5
6
89
10
11
12
13
1416
17
18 19
20
21
22
23
24
25
20
26
2732
15
WITH DOUBLE BLOW DOWN RING & BACK PRESSURE ADJUSTMENT0SAFETY VALVE OPERATING ABOVE 400 C WITH COIL SPRING & COOLING
ITEM NO. DESIGNATION1 BODY2 NOZZLE3 BLOW DOWN RING4 BLOW DOWN RING PIN 5 BLOW DOWN RING PIN -26 SEAL7 LOCK8 DISC9 SPINDLE
10 DISC GUIDE11 SPINDLE LOCK NUT12 SPINDLE PIN13 GUIDE 14 HOUSING15 BLOW DOWN RING-216 REGULATING PIN17 SPINDLE GUIDE18 COOLING19 BODY STUD BOLT20 BODY & BONNET NUT21 LOWER SPRING BUTTON22 SPRING23 UPPER SPRING BUTTON24 BONNET25 BONNET STUD BOLT26 SET SCREW27 SET SCREW NUT28 NUT29 SPINDLE NUT30 CAP31 HANDLE32 PIN-133 LEVER PLATE34 PIN-235 CAP PIN36 NUT
WITH DOUBLE BLOW DOWN RING & BACK PRESSURE ADJUSTMENTSAFETY VALVE OPERATING ABOVE WITH DISC SPRING & COOLING 0400 C
ITEM NO. DESIGNATION
1 BODY2 NOZZLE3 BLOW DOWN RING4 BLOW DOWN RING PIN 5 BLOW DOWN RING PIN -26 LOCK7 SEAL8 DISC9 SPINDLE
10 DISC GUIDE11 SPINDLE LOCK NUT12 SPINDLE PIN13 GUIDE 14 BLOW DOWN RING-215 HOUSING16 REGULATING PIN17 SPINDLE GUIDE18 COOLING19 BODY STUD BOLT20 BODY/BONNET NUT21 DISC SPRING22 BONNET23 BONNET STUD BOLT24 SET SCREW25 SET SCREW NUT26 SPINDLE NUT27 NUT28 CAP29 CAP PIN30 CAP NUT31 HANDLE32 PIN-133 LEVER PLATE34 PIN-2
BUTTWELD END
1
2
BUTTWELD END
1
2
5
14
17
27
19
26
33
28
34
30
29
21
23
18
12
118
32
14
7
6
10 13
22
31
24
25
32
9
20
16
1520
10
27
20
15
19
15
21
29
23
28
25
24
16
18
13
11
10
8
7
4
2
1
3
6
5
9
12
14
17
26
22
1
2
0SAFETY VALVE OPERATING ABOVE 400 C WITH COIL SPRING & COOLING WITH SINGLE BLOW DOWN RING
ITEM NO. DESIGNATION
1 BODY2 NOZZLE3 BLOW DOWN RING4 BLOW DOWN RING PIN 5 LOCK6 SEAL7 DISC8 SPINDLE9 DISC GUIDE
10 SPINDLE LOCK NUT11 SPINDLE PIN12 GUIDE 13 COOLING14 BODY STUD BOLT15 BODY & BONNET NUT16 LOWER SPRING BUTTON17 SPRING18 UPPER SPRING BUTTON19 BONNET20 BONNET STUD BOLT21 SET SCREW22 SET SCREW NUT23 SPINDLE NUT24 NUT25 CAP26 CAP PIN27 CAP NUT28 HANDLE29 PIN-130 LEVER PLATE31 PIN-2
SAFETY VALVE OPERATING ABOVE WITH DISC SPRING & COOLING 0400 C WITH SINGLE BLOW DOWN RING
ITEM NO. DESIGNATION
1 BODY
2 NOZZLE
3 BLOW DOWN RING PIN
4 BLOW DOWN RING
5 LOCK
6 SEAL
7 DISC
8 SPINDLE
9 DISC GUIDE
10 SPINDLE LOCK NUT
11 SPINDLE PIN
12 GUIDE
13 COOLING
14 BODY STUD BOLT
15 BODY/BONNET NUT
16 DISC SPRING
17 BONNET
18 BONNET STUD BOLT
19 SET SCREW
20 SET SCREW NUT
21 SPINDLE NUT
22 NUT
23 CAP
24 CAP PIN
25 CAP PIN NUT
26 HANDLE
27 PIN-1
28 PIN-2
29 LEVER PLATEBUTTWELD END
BUTTWELD END
1
2
29
22
21
1615
9
15
24
11
23
30
25
31
27
26
18
20
13
10
8
3 2
14
6
5
7
12
14
19
17
28
11
19
12
8
24
2821
25
26
22
29
27
16
9
18
13
11
1
2
3
5
6
14
4
10
17
15
23
20
7
16
11
8
3
1
4
7
6
10
13
28
18
19
29
2
12
21
23
14
5
22
30
20
25
31
27
26
9
17
15
24
ITEM NO. DESIGNATION1 BODY2 NOZZLE3 BLOW DOWN RING4 BLOW DOWN RING PIN 5 BLOW DOWN RING PIN -26 LOCK7 SEAL8 DISC9 SPINDLE
10 DISC GUIDE11 SPINDLE LOCK NUT12 SPINDLE PIN13 GUIDE 14 BLOW DOWN RING-215 LOWER SPRING BUTTON16 SPRING17 UPPER SPRING BUTTON18 SET SCREW19 SET SCREW NUT20 SPINDLE NUT21 NUT22 BONNET23 BODY STUD BOLT24 BODY NUT25 CAP26 CAP PIN27 CAP NUT28 HANDLE29 PIN-130 LEVER PLATE31 PIN-2
SAFETY VALVE WITH DISC SPRING WITH DOUBLE BLOW DOWN RING
ITEM NO. DESIGNATION
1 BODY
2 NOZZLE
3 BLOW DOWN RING
4 BLOW DOWN RING PIN -2
5 BLOW DOWN RING PIN
6 LOCK
7 SEAL
8 DISC
9 SPINDLE
10 DISC GUIDE
11 SPINDLE LOCK NUT
12 SPINDLE PIN
13 GUIDE
14 BLOW DOWN RING-2
15 DISC SPRING
16 BONNET
17 BODY STUD BOLT
18 BODY NUT
19 SET SCREW
20 SET SCREW NUT
21 SPINDLE NUT
22 CAP
23 HANDLE
24 PIN-1
25 LEVER PLATE
26 PIN-2
27 CAP PIN
28 NUT
29 CAP NUT
SAFETY VALVE WITH COIL SPRING WITH DOUBLE BLOW DOWN RING
12
MATERIAL CHART
A. Hard facing : Stellite available on request.B. For any other material contact factory.C. Bellow material as per requirement.D. Cooling material as per requirement.
0E. For temperature above 500 C contact factory.F. * Plasma Nitrided.
MAIN COMPONENTS400 510 550
MATERIALS
NUTS
BODYBONNET
COOLING PIECECAP
LEVERSPINDLE
DISCDISC GUIDE
NOZZLEBLOW DOWN RING
SET SCREWUPPER SPRING BUTTONLOWER SPRING BUTTON
SPINDLE NUTSPINDLE LOCK NUT
SPRINGSTUDS
SA 216 GR WCBSA 216 GR WCB
SA 216 GR WCBSA 216 GR WCB
SS 410
SS 410SS 410
SS 410SS 410SS 410SS 316SS 410
SS 410 CAD PLATEDSS 410 CAD PLATED
SPRING STEEL SA 193 GR B7SA 194 GR 2H
SA 217 GR WC6
SA 217 GR WC6SA 217 GR WC6
SA 216 GR WCBSA 216 GR WCB
DIN 1.4923 PL NT*DIN 1.4923 PL NT*
SA 182 F 11 PL NT*DIN 1.4923 PL NT*
SS 410
SS 410SS 410
NIMONIC STEEL
SS 410 CAD PLATEDSS 410 CAD PLATED
DIN 1.4923 PL NT*
SS 193 GR B16SS 194 GR 16
SA 217 GR WC9
SA 216 GR WCBSA 216 GR WCB
SA 182 F 22 PL NT*
SA 217 GR WC9SA 217 GR WC9
SS 410SS 410
NIMONIC STEELSS 193 GR B16SS 194 GR 16
DIN 1.4923 PL NT*DIN 1.4923 PL NT*DIN 1.4923 PL NT*
DIN 1.4923 PL NT*SS 410
SS 410 CAD PLATEDSS 410 CAD PLATED
OTEMPERTURE MAXIMUM. C
13
"D" ORIFICE (EFFECTIVE ORIFICE AREA = 0.110 SQ. IN.)
"E" ORIFICE (EFFECTIVE ORIFICE AREA = 0.196 SQ. IN.)
ValveSize
O OInlet by I U I U
Body/ N T -267.7° C -59.4° C -28.8° C N TBonnet by L L to to to 232.2° C 426.6° C 537.7° C L L
Outlet E E -59.4° C -29.4° C -73.3° C E ET T T T
1D2 150 150 20.03 13 5.62 4-1/8 4-1/21D2 300 150 52.02 43.24 28.83 4-1/8 4-1/21D2 600 150 104.05 86.83 58 4-1/8 4-1/2
Chrome 1D2 300 150 35.86 15.11 4-1/8 4-1/2Molybdenum Steel 1D2 600 150 71.36 30.23 4-1/8 4-1/2
Austen 1D2 150 150 19.33 19.33 19.33 12.66 5.62 1.41 4-1/8 4-1/2Stainless 1D2 300 150 50.62 50.62 50.62 34.8 29.53 24.61 4-1/8 4-1/2Steel 1D2 600 150 101.24 101.24 101.24 68.55 59.41 49.21 4-1/8 4-1/2
MaterialsMaximum Inlet Flange (Set) Pressure Limit
onven d Balan s Valve
ASME FlangeClass
Carbon Steel
Center-to-FaDimensions
(in)
Temperature Rang usive - 28.8 °C to 426.6°C
Temperature Rang usive - 462.7 °C to 537.7°C
Temperature Rang usive - 267.7 °C to 537.7°C
ValveSize
O OInlet by I U I U
Body/ N T -267.7° C -59.4° C -28.8° C N TBonnet by L L to to to 232.2° C 426.6° C 537.7° C L L
Outlet E E -59.4° C -29.4° C -73.3° C E ET T T T
1E2 150 150 20.03 13 5.62 4-1/8 4-1/21E2 300 150 52.02 43.24 28.83 4-1/8 4-1/21E2 600 150 104.05 86.83 58 4-1/8 4-1/2
Chrome 1E2 300 150 35.86 15.11 4-1/8 4-1/2Molybdenum Steel 1E2 600 150 71.36 30.23 4-1/8 4-1/2
Austen 1E2 150 150 19.33 19.33 19.33 12.66 5.62 1.41 4-1/8 4-1/2Stainless 1E2 300 150 50.62 50.62 50.62 34.8 29.53 24.61 4-1/8 4-1/2Steel 1E2 600 150 101.24 101.24 101.24 68.55 59.41 49.21 4-1/8 4-1/2
MaterialsASME Flange Maximum Inlet Flange (Set) Pressure Limit Center-to-Fa
Class
Carbon Steel
Temperature Rang usive - 462.7 °C to 537.7°C
Temperature Rang usive - 267.7 °C to 537.7°C
Dimensionsonven d Balan s Valve (in)
Temperature Rang usive - 28.8 °C to 426.6°C
14
"F" ORIFICE (EFFECTIVE ORIFICE AREA = 0.307 SQ. IN.)
"G" ORIFICE (EFFECTIVE ORIFICE AREA = 0.503 SQ. IN.)
ValveSize
O OInlet by I U I U
Body/ N T -267.7° C -59.4° C -28.8° C N TBonnet by L L to to to 232.2° C 426.6° C 537.7° C L L
Outlet E E -60° C -29.4° C -73.3° C E ET T T T
1- 1/2F2 150 150 20.03 13 5.62 4-7/8 4-3/41-1/2F2 300 150 52.02 43.24 28.83 4-7/8 61-1/2F2 600 150 104.05 86.83 58 4-7/8 6
Chrome 1-1/2F2 300 150 35.86 15.11 4-7/8 6Molybdenum Steel 1-1/2F2 600 150 71.36 30.23 4-7/8 6
Austen 1-1/2F2 150 150 19.33 19.33 19.33 12.66 5.62 1.41 4-7/8 4-3/4Stainless 1-1/2F2 300 150 50.62 50.62 50.62 34.8 29.53 24.61 4-7/8 6Steel 1-1/2F2 600 150 101.24 101.24 101.24 68.55 59.41 49.21 4-7/8 6
MaterialsASME Flange Maximum Inlet Flange (Set) Pressure Limit Center-to-Fa
Class Dimensions
Temperature Rang usive - 462.7 °C to 537.7°C
Temperature Rang usive - 267.7 °C to 537.7°C
onven d Balan s Valve (in)
Temperature Rang usive - 28.8 °C to 426.6°C
Carbon Steel
ValveSize
O OInlet by I U I U
Body/ N T -267.7° C -59.4° C -28.8° C N TBonnet by L L to to to 232.2° C 426.6° C 537.7° C L L
Outlet E E -60° C -29.4° C -73.3° C E ET T T T
1- 1/2G3 150 150 20.03 13 5.62 4-7/8 4-3/41-1/2G3 300 150 52.02 43.24 28.83 4-7/8 61-1/2G3 600 150 104.05 86.83 58 4-7/8 6
Chrome 1-1/2G3 300 150 35.86 15.11 4-7/8 6Molybdenum Steel 1-1/2G3 600 150 71.36 30.23 4-7/8 6
Austen 1-1/2G3 150 150 19.33 19.33 19.33 12.66 5.62 1.41 4-7/8 4-3/4Stainless 1-1/2G3 300 150 50.62 50.62 50.62 34.8 29.53 24.61 4-7/8 6Steel 1-1/2G3 600 150 101.24 101.24 101.24 68.55 59.41 49.21 4-7/8 6
MaterialsASME Flange Maximum Inlet Flange (Set) Pressure Limit Center-to-Fa
Class Dimensions
Temperature Rang usive - 462.7 °C to 537.7°C
Temperature Rang usive - 267.7 °C to 537.7°C
onven d Balan s Valve (in)
Temperature Rang usive - 28.8 °C to 426.6°C
Carbon Steel
15
"H" ORIFICE (EFFECTIVE ORIFICE AREA = 0.785 SQ. IN.)
"J" ORIFICE (EFFECTIVE ORIFICE AREA = 1.287 SQ. IN.)
ValveSize
O OInlet by I U I U
Body/ N T -267.7° C -59.4° C -28.8° C N TBonnet by L L to to to 232.2° C 426.6° C 537.7° C L L
Outlet E E -60° C -29.4 -73.3° C E ET T T T
2J3 150 150 20.03 13 5.62 5-3/8 5-7/83J4 300 150 52.02 43.24 28.83 7-1/4 7-1/83J4 600 150 104.05 86.83 58 7-1/4 7-1/8
Chrome 3J4 300 150 35.86 15.11 7-1/4 7-1/8Molybdenum Steel 3J4 600 150 71.36 30.23 7-1/4 7-1/8
Austen 2J3 150 150 19.33 19.33 19.33 12.66 5.62 1.41 5-3/8 5-7/8Stainless 3J4 300 150 (35.15) 50.62 50.62 34.8 29.53 24.61 7-1/4 7-1/8Steel 3J4 600 150 (43.94) 101.24 101.24 68.55 59.41 49.21 7-1/4 7-1/8
MaterialsASME Flange Maximum Inlet Flange (Set) Pressure Limit Center-to-Fa
Class Dimensions
Temperature Rang usive - 462.7 °C to 537.7°C
Temperature Rang usive - 267.7 °C to 537.7°C
onven d Balan s Valve (in)
Temperature Rang usive - 28.8 °C to 426.6°C
Carbon Steel
ValveSize
O OInlet by I U I U
Body/ N T -267.7° C -59.4° C -28.8° C N TBonnet by L L to to to 232.2° C 426.6° C 537.7° C L L
Outlet E E -60° C -29.4° C -73.3° C E ET T T T
1- 1/2H3 150 150 20.03 13 5.62 5-1/8 4-7/82H3 300 150 52.02 43.24 28.83 5-1/8 4-7/82H3 600 150 104.05 86.83 58 6-1/16 6-3/8
Chrome 2H3 300 150 35.86 15.11 5-1/8 4-7/8Molybdenum Steel 2H3 600 150 71.36 30.23 5-1/8 4-7/8
Austen 1-1/2H3 150 150 19.33 19.33 19.33 12.66 5.62 1.41 5-1/8 4-7/8Stainless 2H3 300 150 50.62 50.62 50.62 34.8 29.53 24.61 5-1/8 4-7/8Steel 2H3 600 150 101.24 101.24 101.24 68.55 59.41 49.21 6-1/16 6-3/8
MaterialsASME Flange Maximum Inlet Flange (Set) Pressure Limit Center-to-Fa
Class Dimensions
Temperature Rang usive - 462.7 °C to 537.7°C
Temperature Rang usive - 267.7 °C to 537.7°C
onven d Balan s Valve (in)
Temperature Rang usive - 28.8 °C to 426.6°C
Carbon Steel
16
"K" ORIFICE (EFFECTIVE ORIFICE AREA = 1.838 SQ. IN.)
ValveSize
O OInlet by I U I U
Body/ N T -267.7° C -59.4° C -28.8° C N TBonnet by L L to to to 232.2° C 426.6° C 537.7° C L L
Outlet E E -60° C -29.4° C -73.3° C E ET T T T
3K4 150 150 20.03 13 5.62 6-1/8 6-3/83K4 300 150 52.02 43.24 28.83 6-1/8 6-3/83K4 600 150 104.05 86.83 58 7-1/4 7-1/8
Chrome 3K4 300 150 35.86 15.11 6-1/8 6-3/8Molybdenum Steel 3K4 600 150 71.36 30.23 7-1/4 7-1/8
Austen 3K4 150 150 19.33 19.33 19.33 12.66 5.62 1.41 6-1/8 6-3/8Stainless 3K4 300 150 (36.91) 50.62 50.62 34.8 29.53 24.61 6-1/8 6-3/8Steel 3K4 600 150 (42.18) 101.24 101.24 68.55 59.41 49.21 7-1/4 7-1/8
MaterialsASME Flange Maximum Inlet Flange (Set) Pressure Limit Center-to-F
Class Dimensions
Temperature Range I e - 462.7 °C to 537.7°C
Temperature Range I e - 267.7 °C to 537.7°C
onven nal an Bellows Valve (in)
Temperature Range I e - 28.8 °C to 426.6°C
Carbon Steel
"L" ORIFICE (EFFECTIVE ORIFICE AREA = 2.853 SQ. IN.)
ValveSize
O OInlet by I U I U
Body/ N T -267.7° C -59.4° C -28.8° C N TBonnet by L L to to to 232.2° C 426.6° C 537.7° C L L
Outlet E E -60° C -29.4 -73.3° C E ET T T T
3L4 1504L6 3004L6 600
150150150
20.0352.02
(70.31)
13 5.62 6-1/8 6-1/243.24 28.83 7-1/16 7-1/8
(70.31) 58 7-1/16 8
Chrome 4L6 300 150 35.86 15.11 7-1/16 7-1/8Molybdenum Steel 4L6 600 150 (70.31) 30.23 7-1/16 8
Austen 3L4 150 150 19.33 19.33 19.33 12.66 5.62 1.41 6-1/8 6-1/2Stainless 4L6 300 150 (37.61) 50.62 50.62 34.8 29.53 24.61 7-1/16 7-1/8Steel 4L6 600 150 (37.61) (70.31) (70.31) 68.55 49.21 7-1/16 8
MaterialsASME Flange Maximum Inlet Flange (Set) Pressure Limit Center-to-F
Class Dimensions
Temperature Range I e - 462.7 °C to 537.7°C
Temperature Range I e - 267.7 °C to 537.7°C
(in)
Temperature Range I e - 28.8 °C to 426.6°C
Carbon Steel
17
"M" ORIFICE (EFFECTIVE ORIFICE AREA = 3.60 SQ. IN.)
ValveSize
O OInlet by I U I U
Body/ N T -267.7° C -59.4° C -28.8° C N TBonnet by L L to to to 232.2° C 426.6° C 537.7° C L L
Outlet E E -60° C -29.4° C -73.3° C E ET T T T
4M6 150 150 20.03 13 5.62 7 7-1/44M6 300 150 52.02 43.24 28.83 7 7-1/44M6 600 150 (77.34) (77.34) 58 7 8
Chrome 4M6 300 150 35.86 15.11 7 7-1/4Molybdenum Steel 4M6 600 150 (70.31) 30.23 7 8
Austen 4M6 150 150 19.33 19.33 19.33 12.66 5.62 1.41 7 7-1/4Stainless 4M6 300 150 (36.61) 50.62 50.62 34.8 29.53 24.61 7 7-1/4Steel 4M6 600 150 (42.18) (77.34) (77.34) 68.55 59.41 49.21 7 8
MaterialsASME Flange Maximum Inlet Flange (Set) Pressure Limit Center-to-Fa
Class Dimensions
Temperature Rang usive - 462.7 °C to 537.7°C
Temperature Rang usive - 267.7 °C to 537.7°C
onven d Balan s Valve
Temperature Rang usive - 28.8 °C to 426.6°C
Carbon Steel
ValveSize
O OInlet by I U I U
Body/ N T -267.7° C -59.4° C -28.8° C N TBonnet by L L to to to 232.2° C 426.6° C 537.7° C L L
Outlet E E -60° C -29.4° C -73.3° C E ET T T T
4N6 150 150 20.03 13 5.62 7-3/4 8-1/44N6 300 150 52.02 43.24 28.83 7-3/4 8-1/44N6 600 150 (70.31) (70.31) 58 7-3/4 8-1/4
Chrome 4N6 300 150 35.86 15.11 7-3/4 8-1/4Molybdenum Steel 4N6 600 150 (70.31) 30.23 7-3/4 8-1/4
Austen 4N6 150 150 19.33 19.33 19.33 12.66 5.62 1.41 7-3/4 8-1/4Stainless 4N6 300 150 (31.64) 50.62 50.62 34.8 29.53 24.61 7-3/4 8-1/4Steel 4N6 600 150 (35.15) (70.31) (70.31) 68.55 59.41 49.21 7-3/4 8-1/4
Temperature Rang usive - 267.7 °C to 537.7°C
onven d Balan s Valve (in)
Temperature Rang usive - 28.8 °C to 426.6°C
Carbon Steel
Temperature Rang usive - 462.7 °C to 537.7°C
MaterialsASME Flange Maximum Inlet Flange (Set) Pressure Limit Center-to-Fa
Class Dimensions
"N" ORIFICE (EFFECTIVE ORIFICE AREA = 4.34 SQ. IN.)
18
"P" ORIFICE (EFFECTIVE ORIFICE AREA = 6.38 SQ. IN.)
ValveSize
O OInlet by I U I U
Body/ N T -267.7° C -59.4° C -28.8° C N TBonnet by L L to to to 232.2° C 426.6° C 537.7° C L L
Outlet E E -60° C -29.4° C -73.3° C E ET T T T
4P6 150 150 20.03 13 5.62 7-1/8 94P6 300 150 (36.91) (36.91) 28.83 8-7/8 104P6 600 150 (70.31) (70.31) 58 8-7/8 10
Chrome 4P6 300 150 35.86 15.11 8-7/8 10Molybdenum Steel 4P6 600 150 (70.31) 30.23 8-7/8 10
Austen 4P6 150 150 (12.3) 19.33 19.33 12.66 5.62 1.41 7-1/8 9Stainless 4P6 300 150 (21.09) (36.91) (36.91) 34.8 29.53 24.61 8-7/8 10Steel 4P6 600 150 (33.75) (70.31) (70.31) 68.55 59.41 49.21 8-7/8 10
Temperature Rang usive - 267.7 °C to 537.7°C
onven d Balan s Valve
Temperature Rang usive - 28.8 °C to 426.6°C
Carbon Steel
Temperature Rang usive - 462.7 °C to 537.7°C
MaterialsASME Flange Maximum Inlet Flange (Set) Pressure Limit Center-to-Fa
Class Dimensions
"Q" ORIFICE (EFFECTIVE ORIFICE AREA = 11.05 SQ. IN.)
ValveSize
O OInlet by I U I U
Body/ N T -267.7° C -59.4° C -28.8° C N TBonnet by L L to to to 232.2° C 426.6° C 537.7° C L L
Outlet E E -60° C -29.4° C -73.3° C E ET T T T
6Q8 150 150 (11.60) (11.60) 5.62 9-7/16 9-1/26Q8 300 150 (21.09) (21.09) (21.09) 9-7/16 9-1/26Q8 600 150 (42.18) (42.18) (42.18) 9-7/16 9-1/2
Chrome 6Q8 300 150 (11.60) (11.60) 9-7/16 9-1/2Molybdenum Steel 6Q8 600 150 (42.18) 30.23 9-7/16 9-1/2
Austen 6Q8 150 150 (11.60) (11.60)(11.60)(11.60) 5.62 1.41 9-7/16 9-1/2Stainless 6Q8 300 150 (17.58) (21.09)(21.09)(21.09) 9-7/16 9-1/2Steel 6Q8 600 150 (21.09) (42.18) (42.18)(42.18) 9-7/16 9-1/2
Temperature Rang usive - 267.7 °C to 537.7°C
onven d Balan s Valve
Temperature Rang usive - 28.8 °C to 426.6°C
Carbon Steel
Temperature Rang usive - 462.7 °C to 537.7°C
MaterialsASME Flange Maximum Inlet Flange (Set) Pressure Limit Center-to-Fa
Class Dimensions(in)
(42.18)(21.09)
(42.18)(21.09)
19
"R" ORIFICE (EFFECTIVE ORIFICE AREA = 16.00 SQ. IN.)
ValveSize
O OInlet by I U I U
Body/ N T -267.7° C -59.4° C -28.8° C N TBonnet by L L to to to 232.2° C 426.6° C 537.7° C L L
Outlet E E -60° C -29.4° C -73.3° C E ET T T T
6R8 150 150 (7.03) (7.03) 5.62 9-7/16 9-1/26R10 300 150 (16.17) (16.17) (16.17) 9-7/16 10-1/26R10 600 150 (21.09) (21.09) (21.09) 9-7/16 10-1/2
Chrome 6R8 300 150 (7.03) (7.03) 9-7/16 9-1/2Molybdenum Steel 6R10 600 150 (21.09) (21.09) 9-7/16 10-1/2
Austen 6R8 150 150 (3.87) (7.03) (7.03) (7.03) 5.62 1.41 9-7/16 9-1/2Stainless 6R10 300 150 (10.55) (16.17) (16.17) (16.17) (16.17) (16.17) 9-7/16 10-1/2Steel 6R10 600 150 (14.06) (21.09) (21.09) (21.09) (21.09) (21.09) 9-7/16 10-1/2
MaterialsASME Flange Maximum Inlet Flange (Set) Pressure Limit Center-to-Fa
Class Dimensionsonven d Balan s Valve (in)
Temperature Rang usive - 28.8 °C to 426.6°C
Carbon Steel
Temperature Rang usive - 462.7 °C to 537.7°C
Temperature Rang usive - 267.7 °C to 537.7°C
"T” ORIFICE (EFFECTIVE ORIFICE AREA = 26.00 SQ. IN.)
ValveSize
O OInlet by I U I U
Body/ N T -267.7° C -59.4° C -28.8° C N TBonnet by L L to to to 232.2° C 426.6° C 537.7° C L L
Outlet E E -60° C -29.4° C -73.3° C E ET T T T
8T10 150 150 (4.57) (4.57) (4.57) 10-7/8 118T10 300 150 (8.44) (8.44) (8.44) 10-7/8 118T10 300 150 (21.09) (21.09) (21.09) 10-7/8 11
Chrome 8T10 300 150 (8.44) 7.03 10-7/8 11Molybdenum Steel 8T10 300 150 (21.09) (15.12) 10-7/8 11
Austen 8T10 150 150 (3.52) (7.03) (7.03) (7.03) (7.03) 1.41 10-7/8 11Stainless 8T10 300 150 (3.52) (7.03) (7.03) (7.03) (7.03) (7.03) 10-7/8 11Steel
MaterialsASME Flange Maximum Inlet Flange (Set) Pressure Limit Center-to-Fa
Class Dimensions
Temperature Rang usive - 267.7 °C to 537.7°C
onven d Balan s Valve (in)
Temperature Rang usive - 28.8 °C to 426.6°C
Carbon Steel
Temperature Rang usive - 462.7 °C to 537.7°C
20
TABLE OF ORIFICE Vs AREA
2Area inch
D
0.110
E
0.196
F
0.307
G
0.503
H
0.785J
1.287
K
1.838
L
2.853
2Area inch
NM
3.60
P
4.34
Q
6.38
R
11.05
T
16.00 26.00
ORIFICE AREA CALCULATIONGas or VaporAPI 520
A= W * T*Z C * Kd *P1 * Kb * Kc M
Fluid:Code / Standard:
Formula:
Nomenclature:2Require ective discharge area in inch
Required flow through the device lb/hrSet pressure * 1.1 plus atmospheric pressure psiaCapacity correction factor due to back pressureMolecular weight of the gas or vapor lb/lb-moleE ective discharge co icientRupture disc correction factorRelieving temperature of inlet gas or vapor RCompressibity factor Function of the ratio of ideal gas specific heats ( k = Cp / CV) of the gas or vapor at inlet condition
AWPsKbMKdKCTZ C
SteamAPI 520
A= W 51.5 * P1 * Kd * Kb * Kc * KN * KSH
Fluid:Code / Standard:
Formula:
Nomenclature:2Require ective discharge area in inch
Required flow rate lb/hrSet pressure * 1.1 plus atmospheric pressure psiaE ective discharge co icientCapacity correction factor due to back pressureRupture disc correction factorCorrection factor for the Napier equation. Superheat correction factor
AWP1KdKbKcK NKSH
SteamIBR
A= E C * P
Fluid:Code / Standard:
Formula:
Nomenclature:2Require ective discharge area in mm
Required flow rate Kg/hrE ective discharge co cientSet pressure * over pressure plus atmospheric pressure Bar A
AECP
F ontact factory. 21
F tact factory.
2Area inch
D
0.110
E
0.196
F
0.307
G
0.503
H
0.785J
1.287
K
1.838
L
2.853
2Area inch
M
3.60
N
4.34
P
6.38
Q
11.05
R
16.00
T
26.00
TABLE OF ORIFICE Vs AREA
Liquid API 520
A= Q * Gp 38* K * K * K * K *K 1.25*P - Pd c v 2
Fluid:Code / Sta dard:
Formula:
Nome clature:2Require ective di cha rea i ch
Required flo hrou h the device U al / miE ective di cha icieCorrectio actor due to back pre ureRupture di c correctio actorCorrectio actor due to vi co ityCorrectio actor due to over pre ureSpecifi ravity of liquid at temperatureSet pre ure i iTotal back pre ure i i
AQKDKKCKvKpGPP2
ORIFICE AREA CALCULATION
22
Re = Reynold's Number
100.3
K
Visc
osity
C
orre
ctio
n
Fact
orv
1 102 103 104 105
0.4
0.5
0.6
0.7
0.8
0.9
1.0
FIGURE 2 - CAPACITY CORRECTION FACTOR K DUE TO VISCOSITYV
0.4
0.5
0.6
0.7
0.8
0.9
1.0
1.1
0.3
0.2
0.1
0.010 20 30 40 50
Percent
overpressure
Cor
rect
ion
Fact
orK
p
NOTE The curve above shows that up to and including 25% overpressure,capacity is affected by the change in lift, the change in the orificedischarge
coefficient,
and
the
change
in
overpressure.
Above
25%,capacity
is
affected
only
by
the
change
in
overpressure.
Noncertifiedvalves
operating
at
low
overpressure
tend
to
chatter;
therefore,overpressure
of
less
than
10%
should
be
avoided.
FIGURE 4 - CAPACITY CORRECTION FACTORS DUE TO OVER PRESSURE FOR NON CERTIFIED PRVS IN SERVICE
23
TABLE 2 - PROPERTIES OF GASES
TABLE 1 - SUPERHEAT CORRECTION FACTORS, KSH
24
0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 2.0
Ideal Gas Specific Heat Ratio, k
1.300
320
340
360
380
400
420
C
oeffi
cien
t, C
0 5 10 15 20 25 30 35 40 45 500.50
0.55
0.60
0.65
0.70
0.75
0.80
0.85
0.90
0.95
1.00
Precent of Pressure = (P / P ) x 100B S
Bac
k pr
essu
re C
orre
ctio
n Fa
ctor
Kb
P = backpressure. in psigBP = set pressure. in psigSFor Set pressure above 50 psig. For 21% overpressure, K =1 up to P /P = 50%.b B S
CURVE FOR EVALUATING COEFFICIENT C
FIGURE 1 - BACK PRESSURE CORRECTION FACTOR, K , FOR BBALANCE SPRING-LOADED PRV
16% Overpressure
10% Overpressure
25
SAFETY VALVE DISCHARGE CAPACITY SATURATED STEAM
1.523456789
10111213141516171819202122232425262728293031323334353637383940
41424344451617181950515253545556575859606162636465666768697071727374757677787980
91.04121.39182.09242.78303.48364.18424.87485.57546.26606.96667.66728.35789.05849.74910.44917.14
1031.831092.531153.221213.921274.621335.311396.011456.701517.401578.101638.791699.491760.181820.881881.581942.272002.272063.662124.362185.062245.752306.452367.142427.84
2488.542549.232609.932670.622731.32971.14
1031.831092.531153.223034.803095.503156.193216.893277.583328.283398.983459.673520.373581.063641.763702.463763.153823.853884.543945.244005.944066.634127.334188.024248.724309.424370.114430.814491.504552.204612.904673.594734.294794.984855.68
Pressure PressureCapacity CapacityBar A Bar Akg / hr kg / hr
Pressure PressureCapacity CapacityBar A Bar Akg / hr kg / hr
1.523456789
10111213141516171819202122232425262728293031323334353637383940
41424344451617181950515253545556575859606162636465666768697071727374757677787980
51.0968.12
102.18136.24170.30204.36238.43272.49306.55340.61374.67408.73442.79476.85510.91544.97579.03613.09647.16681.22715.28749.34783.40817.46851.52885.58919.64953.70987.76
1021.821055.881089.951124.011158.071192.171226.191260.251294.311328.371362.43
1396.491430.551464.611498.681532.74544.74579.03613.09647.16
1703.041737.101771.161805.221839.281873.341907.401941.471975.532009.592043.652077.712111.772145.832179.892213.952248.012282.072316.132350.202384.262418.322452.382486.442520.502554.562588.622622.682656.742690.802724.86
26
SAFETY VALVE DISCHARGE CAPACITY SATURATED STEAM
1.523456789
10111213141516171819202122232425262728293031323334353637383940
PressureBar A
41424344451617181950515253545556575859606162636465666768697071727374757677787980
PressureBar A
142.60190.14285.21380.28475.34570.41665.48760.55855.62950.69
1045.761140.831235.891330.961426.031521.101616.171711.241806.311901.381986.442091.512186.582281.652376.722471.792566.862661.932557.002852.062947.133042.203137.273232.343227.413422.413517553612.613707.683802.75
Capacitykg / hr
3897.823992.894087.964183.034278.101521.101616.171711.241806.314753.444848.514943.585038.655133.725228.785323.85
5418.9275513.995609.065704.135799.205894.275989.336084.406179.476274.546369.616464.686559.756654.826749.886844.956940.027035.097130.167225.237320.307415.377510.447605.50
Capacitykg / hr
2 2 2 2
1.523456789
10111213141516171819202122232425262728293031323334353637383940
PressureBar A
233.65311.53467.53623.06778.82934.59
1090.351246.121401.881557.651713.411869.182024.942180.712336.472492.242648.002803.772959.533115.303271.063426.833582.593738.363894.124049.884205.654361.414517.184672.944828.714984.475140.245296.005451.775607.535763.305919.066074.836230.59
Capacitykg / hr
Pressure
41424344454647484950515253545556575859606162636465666768697071727374757677787980
Bar A
6386.366542.126697.896856.657009.422792.242648.002803.772959.537788.247944.008099.778255.538411.308567.068722.838878.599034.369190.129345.899501.659657.429813.189968.9510124.7110280.4810436.2410592.0110747.7710903.5411059.3011215.0711370.8311526.6011682.3611838.1211993.8912149.6512305.4212461.18
Capacitykg / hr
27
SAFETY VALVE DISCHARGE CAPACITY SATURATED STEAM
1.523456789
10111213141516171819202122232425262728293031323334353637383940
PressureBar A
597.83797.11
1195.661594.211992.772391.322789.883188.433586.983985.544384.094782.645181.205579.755978.306376.866775.417173.967572.527971.078369.638768.189166.739565.299963.84
10362.3910760.9511159.5011558.0511956.6112355.1612753.7213152.2713550.8213949.3814347.9314746.4815145.0415543.5915942.14
Capacitykg / hr
41424344454647484950515253545556575859606162636465666768697071727374757677787980
PressureBar A
16340.7016739.2517137.8017536.3617934.916376.866775.417173.967572.52
19927.6820326.2320724.7921123.3421521.8921920.4522319.0022717.5623116.1123514.6623913.2224311.7724710.3225108.8825507.4325905.9826304.5426703.0927101.6427500.2027898.7528297.3128695.8629094.4129492.9729891.5230290.0730688.6331087.1831485.7331884.29
Capacitykg / hr
2 22 2
1.523456789
10111213141516171819202122232425262728293031323334353637383940
PressureBar A
41424344454647484950515253545556575859606162636465666768697071727374757677787980
PressureBar A
364.64486.19729.29972.38
1215.481458.581701.671944.772187.862430.962674.062917.153160.253403.343646.443889.544132.634375.734618.824861.925105.025348.115591.215834.306077.406320.506563.596806.697049.787292.887535.987779.078022.178265.268508.368751.468994.559237.659480.749723.84
Capacitykg / hr
9966.9410210.0310453.1310696.2210939.323889.544132.634375.734618.82
12154.8012397.9012640.9912884.0913127.1813370.2813613.3813856.4714099.5714342.6614585.7614828.8615071.9515315.0515558.1415801.2416044.3416287.4316530.5316773.6217016.7217259.8217502.9117746.0117989.1018232.2018475.3018718.3918961.4919204.5819447.68
Capacitykg / hr
28
SAFETY VALVE DISCHARGE CAPACITY SATURATED STEAM
2 2
1.523456789
10111213141516171819202122232425262728293031323334353637383940
PressureBar A
41424344454647484950515253545556575859606162636465666768697071727374757677787980
PressureBar A
1325.251467.002650.513534.014417.515301.016184.527068.027951.528835.029718.53
10602.0311485.5312369.0313252.5414136.0415019.5415903.0416786.5517670.0518553.5519437.0520320.5621204.0622087.5622971.0623854.5624738.0725621.5726505.0727388.5728272.0829155.5830039.0830922.5831806.0932689.5933573.0934456.5935340.10
Capacitykg / hr
36223.6037107.1037990.6038874.1139757.6114136.0415019.5415903.0416786.5544175.1245058.6245942.1246825.6347709.1348592.6349476.1350359.6451243.1452126.6453010.1453893.6554777.1555660.6556544.1557427.6658311.1659194.6660078.1660961.6761845.1762728.6763612.1464495.6865379.1866262.6867146.1868029.6868913.1969796.6970680.19
Capacitykg / hr
2 2
1.523456789
10111213141516171819202122232425262728293031323334353637383940
41424344454647484950515253545556575859606162636465666768697071727374757677787980
853.781138.371707.552276.742845.923415.103984.294553.475122.665691.846261.026830.217399.397968.588537.769106.949676.13
10245.3110814.5011383.6811952.8612522.0513091.2313660.4214229.6014798.7815367.9715937.1516506.3417075.5217644.7018213.8918783.0719352.2619921.4420490.6221059.8121628.9922198.1822767.36
23336.5423905.7324474.9125044.1025613.289106.949676.13
10245.3110814.5028459.2029028.3829597.5730166.7530735.9431305.1231874.3032443.4933012.6733581.8634151.0434720.2235289.4135858.5936427.7836996.9637566.1438135.3338704.5139273.7039842.8840412.0640981.2541550.4342119.6242688.8043257.9843827.1744396.3544965.5445534.72
Pressure PressureCapacity CapacityBar A Bar Akg / hr kg / hr
29
SAFETY VALVE DISCHARGE CAPACITY SATURATED STEAM
2 2
1.523456789
10111213141516171819202122232425262728293031323334353637383940
414243444546474849505152535455565758596061626364656667686970
2015.992687.994031.995375.986719.988063.979407.97
10751.9612095.9613439.9514783.9516127.9417471.9418815.9320159.9321503.9222847.9224191.9125535.9126879.9028223.9029567.8930911.8932255.8833599.8834943.8836287.8737631.8738975.8640319.8641663.8543007.8544351.8445695.8447039.8348383.8349727.8251071.8252415.8153759.81
55103.8056447.8057791.7959135.7960479.7821503.9222847.9224191.9125535.9167199.7668543.7669887.7571231.7572575.7473919.7475263.7376607.7377951.7279295.7280639.7181983.7183327.7084671.7086015.6987359.6988703.6890047.6891391.6792735.6794079.66
Pressure PressureCapacity CapacityBar A Bar Akg / hr kg / hr
2 2
1.523456789
10111213141516171819202122232425262728293031323334353637383940
414243444546474849505152535455565758596061626364656667686970717273747576
1672.252229.673344.504459.335574.176689.007803.848918.67
10033.5011148.3412263.1713378.0014492.8415607.6716722.5017837.3418952.1720067.0021181.8422296.6723411.5125526.3425641.1726759.0127870.8428985.6730100.5131215.3432330.1733445.0134559.8435674.6836789.5137004.3439019.1840134.0141248.8442363.6843478.5144593.34
45708.1846823.0147937.8449052.6850167.5117837.3418952.1720067.0021181.8455741.6856856.5157971.3559086.1860201.0161315.8562430.6863545.5264660.3565775.1866890.0268004.8569119.6870234.5271349.3572464.1873579.0274693.8575808.6876923.5278038.3579153.1980268.0281382.8582497.6983612.5284727.35
Pressure PressureCapacity CapacityBar A Bar Akg / hr kg / hr
30
SAFETY VALVE DISCHARGE CAPACITY SATURATED STEAM
2 2
1.523456789
10111213141516171819202122232425262728293031323334353637383940
PressureBar A
4142
PressureBar A
5132.896843.85
10265.7713687.7017109.6220531.5523953.4727375.4030797.3234219.2537641.1741063.1044485.0247906.9551328.8754750.8058172.7261594.6565016.5768438.5071860.4275282.3578704.2782126.2085548.1288970.0492391.9795813.8999235.82
102657.74106079.67109501.59112923.52116345.44119768.37123189.29126611.22130033.14133455.07136876.99
Capacitykg / hr
140298.92143720.84
Capacitykg / hr
1.523456789
10111213141516171819202122232425262728293031323334353637383940
PressureBar A
Pressure
414243444546474849505152535455565758596061626364656667686970
Bar A
2963.603951.475927.207902.939878.66
11857.4013830.1315805.8617781.6019757.3321733.0623708.7925684.5327660.2629635.9931611.7233587.4635563.1937538.9239514.6641490.3943466.1245441.8547417.5949393.3251369.0553344.7955320.5257296.2559271.8961247.7263223.4565199.1867174.9269150.6571126.3873102.1175077.8577053.5879029.31
Capacitykg / hr
2 2
81005.0482980.7884956.5186932.2488907.9831611.7235587.4635563.1937538.9298786.64
100762.37102738.11104713.84106689.57108665.30110641.04112616.77114592.50116568.24118543.97120519.70122495.43124471.17126446.90128422.63130398.36132374.10134349.83136325.56138301.30
Capacitykg / hr
31
0SAFETY VALVE DISCHARGE CAPACITY AIR AT 30 C
2 2: 16774.16 mm
12077.4016103.1924154.7932206.3940257.9848309.5856361.1864412.7772464.3780515.9788567.5696619.16
104670.76112722.36120773.95128825.55136877.15144928.74152980.34161031.94169083.53
Capacity
1.523456789
101112131415161718192021
PressureBar A
PressureBar Akg / hr
Capacitykg / hr
2 2: 10322.55 mm
1.523456789
101112131415161718192021
PressureBar A
PressureBar A
7432.249909.65
14864.4719819.3024774.1229728.9434683.7739638.5944593.4249548.2454503.0659457.8964412.7169367.5474322.3679277.1884232.0189186.8394141.6699096.48
104051.30
Capacitykg / hr
Capacitykg / hr
32
SAFETY VALVE DISCHARGE CAPACITY SATURATED STEAM
2 2
102030405060708090
100120140160180200220240260280300320340360380400420440460480500520540560580600620640660680700
Pressurepsia
Pressurepsia
139278416555694833972
111012491388166619432221249827763054333136093886416144414719499752745552852961076385666269407217749577738050832886058883916194389716
720740760780800820840860880900920940960980
10001020104010601080110011201140116011801200122012401260128013001320134013601380140014201440146014801500
9993102711054810826111041138111659119361221412492127691304713324136021388014157144351471214990152681554515823161001637816655169331721117488177661804318321185991887619154194311970919987202642054220819
Capacitylb / hr
Capacitylb / hr
2 2
102030405060708090
100120140160180200220240260280300320340360380400420440460480500520540560580600620640660680700
Pressurepsia
Pressurepsia
78156234312389467545623701779935
10911246140215581714186920252181233724932648280429603116327234273583373938954051420643624518467448304985514152975453
720740760780800820840860880900920940960980
10001020104010601080110011201140116011801200122012401260128013001320134013601380140014201440146014801500
560857645920607662326387654366996855701
7166732274787634779079458101825784138569872
88809036919293479205965998159971
1012610282104381059410750109051106111017113731152911684
Capacitylb / hr
Capacitylb / hr
33
2 2
102030405060708090
100120140160180200220240260280300320340360380400420440460480500520540560580600620640660680700
Pressurepsia
Pressurepsia
217435652870
10871304152217391957217426093044347839134348478352185652608765226957392
78268261869691319566
10000104351087011305117401217412609130441347913914143481478315218
720740760780800820840860880900920940960980
10001020104010601080110011201140116011801200122012401260128013001320134013601380140014201440146014801500
1563516088165221695717392178271826218696191311956
200012043620870213052174022175226102304423479239142434924784252182565326088265232695827392278272826228697291322956630001304363087131306317403217532610
Capacitylb / hr
Capacitylb / hr
2 2
102030405060708090
100120140160180200220240260280300320340360380400420440460480500520540560580600620640660680700
Pressurepsia
Pressurepsia
356712
10691425178121372493285032063562427449875699641271247836854992619973
106861139812111128231353514248149601567316385170971781018522192351994720659213722208422796235092422124934
720740760780800820840860880900920940960980
10001020104010601080110011201140116011801200122012401260128013001320134013601380140014201440146014801500
256462658
2707127783284962920829920306333134532058327703348234195349073562036332370443775738469391813989440606413194203142743434564416844881455934630547018477304844349155498675058051292520045271753429
Capacitylb / hr
Capacitylb / hr
0SAFETY VALVE DISCHARGE CAPACITY AIR AT 30 C
34
2 2
102030405060708090
100120140160180200220240260280300320340360380400420440460480500520540560580600620640660680
Pressurepsia
Pressurepsia
556111216682224277933353891444750035559667177828894
1000611118122301334114453155651667717789189002001221124222362334724459255712668327795289053001831130322423335334465355773668937801
720740760780800820840860880900920940960980
1000102010401060108011001120114011601180120012201240126012801300132013401360138014001420144014601480
4002441136422484335944471455834669547807489185003051142522545336654477555895670157813589246003661148622606337264483655956670
6781968930700427115472266733787448945601767137782578936800488116082272
Capacitylb / hr
Capacitylb / hr
0SAFETY VALVE DISCHARGE CAPACITY AIR AT 30 C
2 2
102030405060708090
100120140160180200220240260280300320340360380400420440460480500520540560580600620640660680
Pressurepsia
Pressurepsia
911182327343646455754686380729182029114
1093712759145821640518228200502187323696255192734129164309873281034632364553827840101419234374645569473924921451037528605468356505583286015161974
720740760780800820840860880900920940960980
1000102010401060108011001120114011601180120012201240126012801300132013401360138014001420144014601480
Capacitylb / hr
Capacitylb / hr
65619674426926571087729107473376556783788020182024838478567087492893159113892961847839660698429
100252102074103897105720107543109365111188113011114834116656118479120302122125123947125770127593129416131238133061134884
35
2 2
102030405060708090
100120140160180200220240260280300320340360380400420440460480500520540560580600620640660680700
Pressurepsia
Pressurepsia
1302260339055206650878099111
104131171413016156191822220825234282603128634312383384136444390474165044253468564945952063546665726959872624756507867681702847288875491780948069783300859038850691109
720740760780800820840860880900920940960980
10001020104010601080110011201140116011801200122012401260128013001320134013601380140014201440146014801500
937139631698919
101522104125106728109331111934114538117141119744122347124950127553130156132759135363137966140569143172145775148378150981153584156188158791161394163997166600169203171806174410177013179616182219184822187425190028192631195235
Capacitylb / hr
Capacitylb / hr
2 2
102030405060708090
100120140160180200220240260280300320340360380400420440460480500520540560580600620640660680700
Pressurepsia
Pressurepsia
2020404160618081
10102121221414216163181832020324244282853232536366404074447
484885252856569606106465
6869172732767728081384854888949293596976
101016105057109098113138117179121220125260129301133342137382141423
720740760780800820840860880900920940960980
10001020104010601080110011201140116011801200122012401260128013001320134013601380140014201440146014801500
14546414950415354515758516162616566716970717374817778918182918587018991119395119799220203320673
210114214155218195222236226277230317234358238399242439246480250521254561258602262642266683270724274764278805282846286886290927294968299008303049
Capacitylb / hr
Capacitylb / hr
0SAFETY VALVE DISCHARGE CAPACITY AIR AT 30 C
36
2 2
102030405060708090
100120140160180200220240260280300320340360380400420440460480500520540560580600620640660680700
Pressurepsia
Pressurepsia
254950997648
101971274715296178452039422944254933059235690407894588850986560856118366282713817647981578866769177596874
101922107071112170117268122367127465
12\32564137633142761147860152958158057163156168254173353178452
720740760780800820840860880900920940960980
100010201040106010801100
183550188349193747198846203945209043214142219241224339229438234536239635244734249832254931260029265128270227275325280424
Capacitylb / hr
Capacitylb / hr
2 2
102030405060708090
100120140160180200220240260280300320340360380400420440460480500520540560580600620640660680700
Pressurepsia
Pressurepsia
307361479220
122931536718440215132458727660307333688043027491735532061467676137376079907860539220098347
104493110640116787122933129080135227141273177520153667159813165960172107178253184400190547196693202840208987215133
720740760780800820840860880900920940960980
1000
221280227427233573239720245867252013258160264307270453276600282747288893295040301187307333
Capacitylb / hr
Capacitylb / hr
0SAFETY VALVE DISCHARGE CAPACITY AIR AT 30 C
37
2 2
102030405060708090
100120140160180200220240260280300320340360380400420440460480500520540560580600620640660680700
Pressurepsia
Pressurepsia
45189036
1355418072225902710831626361444066145179542156325172287813239035999395
108431117466126502135538144574153610162646171682180718189754198789207825216861225897234933243969253005262041271076280112289148298184307220316256
720740760780800820840860880900920940960980
1000
325292334328343364352399361435370471379507388547397579406615415651424686433722442758451794
Capacitylb / hr
Capacitylb / hr
2 2
102030405060708090
100120140160180200220240260280300320340360380400420440460480500520540560580600
Pressurepsia
Pressurepsia
782515650234753130039125469505477562600704257825093900
109549125199140849156499172149187799203449219099234749250399266049281299297348312998328648344298359948375598391248406898422548438198453848469498
Capacitylb / hr
Capacitylb / hr
0SAFETY VALVE DISCHARGE CAPACITY AIR AT 30 C
38
2 2
102030405060708090
100120140160180200220240260280300
Pressurepsia
Pressurepsia
1133022661339914532156651679827931290642
101972113303135963158624181284203945226605249266271926294587317247339908
Capacitylb / hr
Capacitylb / hr
2 2
102030405060708090
100120140160180200220240260280300
Pressurepsia
Pressurepsia
1841236823552357364792058
110470128882147293165705184117220940257763294587331410368233405057441880478703515527552350
Capacitylb / hr
Capacitylb / hr
0SAFETY VALVE DISCHARGE CAPACITY AIR AT 30 C
39
Range of Products
Dump tube
evlav ssapyB PL evlav ssapyB PHfor 660 MW power plant
Spray water controlvalve for 660 mw
Minimum flow re-circulation valve
Desuperheater-integralmultinozzle type