Waterworks Eng

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HYDRO MECHANICAL EQUIPMENT

VALVE SOLUTIONS IN MORE THAN 70 COUNTRIES


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During its more than 40 years of activity, ORBINOX has sought, withthe cooperation of its customers, to develop innovative and competitiveproducts which provide solutions for problems posed within differentsectors and applications.

ORBINOX offers a complete range of Hydro Mechanical equipment fordams, small hydraulic plants, pumping and water treatment centres... aswells as gates and knife gate valves for liquid management.

As a result of this evolution, ORBINOX is currently an active companywith international coverage. Committed to a fast and flexible servicecapable of satisfying the requirements of its customers, ORBINOX

provides the coordinated efforts of the team at its manufacturing plantsand a sales network that covers five continents.

ORBINOX, as the largest European manufacturer of knife gate valves,has state of the art installations and technologies providing automatedproduction processes.

From design phase right up to delivery or commissioning of its products,

ORBINOX consistently provides high levels of reliability and quality,endorsed by the certification of its Quality System under StandardISO 9000:2000.


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ORBINOX, present in more than 70 countries around theworld, is committed to satisfying the requirements of ourcustomers and improving our products and services throughteamwork and continuous improvement.

Our sustainable growth based on more than 40 yearsexperience in the design, manufacture and supply of valvesfirmly acknowledges our quality and service on the market.

The ORBINOX group, present in five continents, has twoproduction centres (Spain and India), eight distributioncompanies (Canada, USA, United Kingdom, Spain, Germany,France, India and China) and a powerful engineeringdepartment in Spain.

Moreover, the ORBINOX production plants use modern CNCmachining centres which adapt to the strict requirements of ourcustomers in any part of the world.

ORBINOX AROUND THE WORLD

Anoeta, Spain

Laval, Canada

Coimbatore, India


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The technical team at ORBINOX provides its clients with a vastexperience gained at more than 100 dams along with tailoredsolutions with special valves for the most demandingapplications in the different sectors, such as water and industrialsectors.

ORBINOX uses the latest CAD/CAM computer tools to carryout analyses and 2D and 3D dimensioning as well as the finiteelement method and the manufacture of its valves in CNCmachining centres.....

All equipment supplied by ORBINOX is designed, calculatedand tested at our installations.

ENGINEERING AND PROJECTS


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HYDRO MECHANICAL EQUIPMENT

Bonneted gate valves

BUFixed cone valves

CHButterfly Valves

MBRadial gates

CTRoller gates

MV


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Bonneted gate valves are designed and manufactured inaccordance with Bureau of Reclamation standards, alwayswith a rectangular geometry, which is generally located onbottom or mid-bottom water outlet conduits, embedded inconcrete with the exception of the actuator (fig.1). Its normalconfiguration includes a service Valve (downstream) and asafety valve (upstream) for maintenance purposes.

It is an fabricated and specially robust construction, the flushbottom design of which avoids the accumulation of solids, andthe absence of rubber seals avoids potential leakage over thelong term due to the rapid deterioration of this kind of material.

All ORBINOX bonneted gate valves are designed for thespecific service conditions of each particular case.

The structural evaluation is performed using the finite elementsmethod and CAD modelling systems.

The standards used in the evaluations are:

DIN 19704: Hydraulic Steel Structures. Criteria forDesign and Calculation.

DIN 19705: Hydraulic Steel Structures.Recommendation for Design, Construction and

Erection.Standards and design criteria of the Bureau ofReclamation (USBR) for sliding gates.

The body of the valve is designed as a self-resistant recipientwhich resistant to the design pressure without the assistance ofthe concrete.

The recess along which the gate moves is designed so that nodownstream depression zones are created. The upper and sidebody faces downstream are appropriately bevelled for thispurpose (fig.2).

BUMODEL

We reserve the right to change any data at any time depending on its criteria and without prior notice.

ORBINOX S.A. Pol. Ind. s/n - 20270 ANOETA - Tel.: +34 943 698030 - Fax: +34 943 653066 - e-mail: [email protected]

OBX 03/06 1st EDITION

BU-1

ORBINOX CANADA, ORBINOX USA, ORBINOX COMERCIAL, ORBINOX UK, ORBINOX FRANCE, ORBINOX GERMANY, ORBINOX INDIA, ORBINOX CHINA

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1. GENERAL DESCRIPTION 2. DESIGN CHARACTERISTICS

Fig. 1

Fig. 2

The gates are normally raised to a height where, in themaximum open position, the lower edge of the gate is slightlyabove the upper body face (fig.3) so that in cases of smallleaks in the cylinder, the position indicators together with thehydraulic units have sufficient margin to carry out a hydraulicreset to return the gate to its maximum opening position.


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A gate valve has the following elements:

GateBody and bonnetActuation cylinderBy-pass deviceVenting systeme

Gate:

The gate is a robust part, made from either thick steel plate sheets

or from an fabricated structure, with a skin plate located on theupstream position.

The gate has seats on the sides, upper and lower faces. All ofsaid seats are bronze, with the exception of the bottom onewhich is made of stainless steel. Bronze sliders are located onthe front face of the gate which fit with the counter guides.Similarly, sliders are located for guiding the gate at the side.Wedges are also arranged on the front face in order toguarantee closure with little water pressure.

The gate has a 45 bevel and has the side and top horizontalseat facing in bronze, which are correctly adjusted andmachined in order to achieve the required tightness required.

The lower edge of the panel is machined austenitic stainlesssteel and sits upon a piece of the same material located on thebottom of the valve.

Body and bonnet:

The body of the valve is designed as two fabricated sub unitsand are joined together along its vertical length using flatscrewed flanges.

The front body is formed by a short armoured section joined to theupstream part of the valve recess and its corresponding bonnet

section (or housing chamber). It includes the stainless steel counterguides and has a series of horizontal stiffeners. The fixture of thisbody to the conduit armouring is done using a flat flange.

The rear body includes the downstream part of the valve recessand bonnet and includes the sill, side and lintel seals alongwith the side guides, all of which are stainless steel, it alsoincludes the venting inlet. Stiffening and joining to the reararmour of the conduit is done using a flat flange.

The side seat facings, counter guides on the upstream facesand side guides at the bottom of the recess are made ofstainless steel and designed to go along the height of the bodyand bonnet.


ORBINOX S.A. Pol. Ind. s/n - 20270 ANOETA - Tel.: +34 943 698030 - Fax: +34 943 653066 - e-mail: [email protected] 03/06 1st EDITION

BU-2


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BUMODEL

Fig. 3

Fig. 4

The gate can be raised above the open position to the upperpacking change position when required (fig.4). The sealingsystem in this position guarantees the water tightness of theshaft and allows the packing to be changed whilst the valve isloaded.

Maximum admissable leakage for this type of valve is0.08 litres per second and linear meter of joint.

The aeration conduits are dimensioned is such a way thatmaximum depression does not exceed 2 mwc, for which airspeed is limited (max. 90 m/s) with the aim of avoidingexcessive load losses and air swirls in the conduits whichcould cause vibrations in the valve.

3. MANUFACTURING CHARACTERISTICS


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BU-3


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BUMODELOn the upper area, the bodies end in a robust flat flange forconnection with the bonnet cover.

On each valve there is a position indicator be means of astainless steel rod and an indication needle which signals theopening position of the panel on an indication strip fixed to thecylinder.

The bonnet cover closes both bodies and supports the cylinder.It is designed as a robust fabricated structure, formed by a thickplate with external ribs which support the coupling flange withthe cylinder support flange. The necessary parts for thecompression gland of the cylinder shaft and the gate positionindicator are located on it, along with a threaded outlet for thepurge tap.

Actuation cylinder:

The actuation cylinder of the sliding valves is a double actingcylinder. It incorporates a position indicator which consists of aframe with an aluminium graduated strip and an indicationneedle moved by a stainless steel shaft, fixed to the panel andwhich moves vertically along the outside through the bonnetcover by means of a compression gland. There are threeposition indications on the indicator (open, closed and packingchange).

By-pass device:

The by-pass device is comprised of a steel pipe, two gatevalves and a disassembly joint.

Venting system:

Venting system is comprised of a collector which distributes theair uniformly through the upper area immediately behind thegate. The collector may be connected to pipes on the outsideor to air relief valves protected by their respective gate valves.The air relief valves used for the venting system are doubleaction.

This gate is normally actuated with a hydraulic cylinder due tothe high stresses required.

The hydraulic unit will normally be equipped with a doublemotor pump and an emergency manual pump. There is theoption of using oil / nitrogen accumulators for performingemergency operations.

The electrical cabinet has a PLC for programming the opening,closing and packing change maneouvres along with furthermaneouvres specific to each case.

Speak with our technicians for alternative actuation.

The "Bureau" type sliding gate valve is designed to supportwater loads of up to 150 mwc and speeds in excess of 25m/s.

The nominal forces for opening and closing the valve at thespecified speed will be determined as the algebraic sum of thecomponents of the forces applied, corrected by the applicablesafety factors in each case.

Steel structures permanently immersed in water:Sand blasting SA 2 1/250 microns zinc rich primer300 microns bituminous paint of an epoxyresin and tar combination

Steel structures in open air:Sand blasting SA 2 1/250 microns zinc rich primer100 microns chlorinate rubber alkyd RAL 5015 blue

Steel structures, embedded in concrete:Sand blasting SA 2 1/250 microns zinc rich primer

Structural Parts: Carbon steel:

EN 10025 DIN ASTMS275JR 1.0044 A570 Gr40

Moving Parts: Stainless Steels

EN 10088 DIN AISIX2CrNi18-9 1.4307 304L

X2CrNiMo17 1.4404 316LBronze rims:

CDA ASTMC86500 B584-96

Hydraulic TestsBody at 1.5 x Design PressureValve tightness at 1.1 x Design Pressure.

4. ACTUATORS

8. TESTS

7. MATERIALS AND STANDARDS

6. ANTI-CORROSION PROTECTION SYSTEM

5. SERVICE AND LOAD CONDITIONS


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BU-4


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BUMODEL

1. Body part 1: Carbon Steel C S275JR + AISI 304 6. By-pass device: see BU-5 specifications file2. Body part 2: Carbon Steel C S275JR + AISI 304 7. Venting system: see BU-5 specifications file3. Panel: Carbon Steel S275JR + Bronze 8. Air relief safety valve: see BU-5 specifications file4. Hydraulic Cylinder: Shaft in AISI 304

5. Packing: Chevron type

POSSIBLE MATERIAL COMBINATIONS


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BU-5


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BUMODELOPERATING CONDITIONS

Valve application:Maximum operating pressure: mwcDesign Pressure: mwcMaximum Flow: m3/sBU valve configuration: Only valve

Tandem (Safety + Service)

CHARACTERISTICS

Conduit dimensions: mm x mmBypass: DN mm

2 Manual gate valves (with outer spindle in AISI 304)1 manual gate valve (with outer spindle in AISI 304) and 1 motorised gate valveOther:

Venting: x DN mmDual functionTriple function

Air relief safety valve:Manual gate valve (with outer spindle in AISI 304); one per relief valve.Other:

Actuator: HydraulicHydraulic UnitElectrical Cabinet ( V/ Hz)Electric (DIN; V/ Hz)ManualObservations:

TESTS

NDT

Welding approval: ASME IXOther:

OBSERVATIONS

SPECIFICATIONS OF THE "BUREAU" TYPE SLIDING GATE VALVE


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CHMODEL

Valve normally used for closing and regulating bottom andintermediate water outlets of dams and reservoirs as well as aturbine bypass valve in hydroelectric power stations. The fixedcone valve (fig. 1) discharges directly into the open air as anextension of the bottom drainage conduit which is embeddedin the concrete body of the dam.

This valve releases a hollow cone shaped jet (fan or spray type jet).Upon contact with the air, the energy is dissipated by pulverisationand mixing with the air. The water is normally collecteddownstream in a stilling pool.

Cone valves are excellent regulation devices, since they canoperate at any partially open position and they havepractically no design load limitations.

The most common use for these valves is free discharge into theatmosphere, but they can also be adapted for submergeddischarges through the downstream wall of the dam.

The advantages of the hollow jet valves compared with othertypes of valves which have the same functions are notable: theyare light, simple, they have no cavitation or vibration problems,and are very easy to operate and maintain.

2. DESIGN CHARACTERISTICS

All ORBINOX fixed cone valves are designed for the specificservice conditions of each particular case.

The structural evaluation is performed using the finiteelements method and CAD modelling systems.

The standards used in the evaluations are:

DIN 19704: Hydraulic Steel Structures. Criteria for

Design and Calculation.


Erection.

The valve has a high rate of discharge making it ideal formanaging large water flows (fig.2).

The amplitude of the jet constitutes a certain disadvantage, inspecial cases, above all in channel discharges, or dischargesin regions with cold winter temperatures where the areassurrounding the valve are exposed to frost and the fine dewsprayed out by the valve turns to ice. For this type of case theextension of the jet is limited using a tube with a larger

diameter (hood fig.3), or by installing the valve inside a loadrupture chamber which flows into a drainage channel. The useof hoods decreases the discharge rate by approximately 10%.

The water jet from the valve, due to its intense mix with the air,drags large volumes of air along with it. This must be closelyconsidered when placing a hood as the jet must be sufficientlyaerated through different openings on the hood.

1. GENERAL DESCRIPTION

Fig. 1 Fixed cone valve.

Fig. 2 Rate of discharge Cd.

Fig. 3 Fixed cone valve with concentrator.




CH-1


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CHMODEL



CH-2


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A valve for regulation and discharge to the exterior, formedby a fixed cylindrical body upon which a cylindrical sleevewill slide concentrically to the body and lengthways.

A fixed cone valve has the following elements:

BodySleeve or shutterDrive cylinders

Body:The body of the valve is formed by a stainless steel shell whichis machined on the outer side, with internal radial carbon steelribs welded on the shaft of the valve to a pipe which extendsdownstream where it is welded with the dispersion cone vertex.The visible parts of the radial ribs are covered in bronzeapplied by welding and subsequent machining, and are flushwith the external diameter of the tube which forms the body.

The valve has a drilled flange in accordance with standardsDIN (PN 10, PN16) and AWWA C207 Class "D" at theupstream end.

Around the base of the dispersion cone is the housing for theEPDM seat which is fixed to the body by a steel ring andstainless steel screws. The outer edges of the sleeve will sit on

this joint in the fully closed position.

Sleeve:The sleeve consists of a steel cylinder which has internalstainless steel rings that act as rollers and slide over theuncovered part of the ribs on the main body, in such away that the sliding action is always between stainlesssteel and bronze. On the upstream part of the sleeve thereis a watertight compression gland which slides on themachined stainless steel body of the valve. The contactsurface with the watertight joint is made from stainlesssteel. The ends of the cylinder shafts are joined to thesleeve.

If the valve has a fixed hood (for submerged discharge), thesleeve is manufactured in stainless steel and is machined onthe outside. The fixed hood, normally positioned in concrete,has a system of watertight joints against which the machinedouter part of the sleeve will slide.

Drive Cylinders:The standard valve actuation is obtained from two parallelhydraulic cylinders, mounted horizontally. They are doubleacting cylinders, with stainless steel shafts, treated with hardchrome. The normal operation pressure is between 60 and120 Bar.

The body incorporates a position indicator which is comprisedof a frame with a graded aluminium strip. The indicator needle

moves with the sleeve. There are two indication positions onthe indicator (open and closed).

There is an option for installing a internal position transducer(4-20mA) for remote valve regulation.

4. ACTUATORS

This gate can be actuated manually, electrically andhydraulically (fig.4), although the application usuallyrecommended is the hydraulic actuator due to simplicity andhigh stresses required.

The hydraulic unit will normally be equipped with a doublemotor pump and an emergency manual pump. Nitrogenaccumulators can be used for emergency purposes.

The electrical cabinet has a PLC for programming the openingand closing maneouvres along with further maneouvresspecific to each case.


Fig. 4 Actuators.


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CHMODEL



CH-3


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In the case of motor and manual actuation, a double spindleand gear is used to transmit sleeve movement.


The fixed cone valves are designed to support water loads ofup to 160 mwc. For loads in excess of this, please consult ourtechnicians.

The nominal forces for opening and closing the valve at thespecified speed will be determined as the algebraic sum of thecomponents of the forces applied, corrected by the applicablesafety factors in each case.


Steel structures permanently immersed in water:

Sand blasting SA 2 1/2

50 microns zinc rich primer

300 microns bituminous paint of an epoxyresin and tar combination

Structures in open air:



100 microns chlorinate rubber alkyd RAL 5015 blue

Steel structures, embedded in concrete:



Structural Parts: Carbon steel:

EN 10025 DIN ASTM

S275JR 1.0044 A570 Gr40

Moving Parts: Stainless Steels

EN 10088 DIN AISI

X2CrNi18-9 1.4307 304L

X2CrNiMo17 1.4404 316L

DUPLEX 2205 1.4462 A240

Rib coverings: Bronze:

CDA ASTM

C86500 B584-96

Hydraulic Tests:

Body at 1.5 x Design Pressure

Valve testing at 1.1 x Design Pressure.

8. TESTS



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CHMODEL



CH-4


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1. Body: S-275-JR + (AISI 304 / AISI 316) 6. Wiper:

2. Sleeve: S-275-JR + (AISI 304 / AISI 316) 7. Lip seal + O ring:

3. Hydraulic Cylinder: S275JR Steel with shaft in ASI 420 8. Slides: Turcite

4. Seat: EPDM 9. Graduated strip: AISI 304 / AISI 3165. Seat ring: S275JR



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CH-5


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CHMODELOPERATING CONDITIONS

Valve application:Maximum operating pressure: mwcDesign Pressure: mwc

CHARACTERISTICS

Model: Atmospheric dischargeWith hoodSubmerged

Nominal diameter: mmFlange standard: PN 10

PN 16Others (AWWA C207 Class D)

Actuator: HydraulicHydraulic UnitElectrical Cabinet ( V/ Hz)

Electric: ( V/ Hz)Manual:Observations:

TESTS

NDTWelding approval: ASME IX

Other:

OBSERVATIONS

FIXED CONE VALVE SPECIFICATIONS


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MBMODEL

Butterfly valves constitute one of the most simple, robust andeconomical ways of managing flows in inlet and outlet conduits(fig.1).

Butterfly valves are used for emergency functions, and althoughin some exceptions, mainly with small diameter valves, theyhave been used to regulate flow, this operation method is notrecommended due to the high levels of turbulence, vibrationand possible cavitations which may occur on the valve ordownstream pipes.

The main use for these valves is in pressurized conduits athydro-power plants electrical plants, inlets and outlets, and for

closures in the event of emergency. In the majority of cases,butterfly valves are comprised of a steel box, which is acylindrical pipe with the same internal diameter as the conduiton which it is installed.

The advantages are mainly a result of the bi-eccentric closuregeometry, which largely eliminates joint-seat friction, andmakes the water flow seal the valve. It provides a continuousseal around the complete circumference and its robust designallows opening and closure in high heads.

2. DESIGN CHARACTERISTICS

All ORBINOX butterfly valves are designed for the specificservice conditions of each particular case.

The structural evaluation is performed using the finiteelements method and CAD modelling systems.

Standards and criteria used for design and testing:

DIN 19704: Hydraulic Steel Structures. Criteria for Designand Calculation.

DIN 19705: Hydraulic Steel Structures. Recommendationfor Design, Construction and Erection.

AWWA C-504-80.

AWWA M49 Butterfly valves: Torque Head Loss andCavitation Analysis.

The closure mechanism is a circular body, with ahydrodynamic lengthway section to create minimum flowdisturbance and pressure drop.

The butterfly valve is not very hydrodynamic in form whenoperating at partial aperture. Downstream, a separation zoneis formed where vibrations, swirls and cavitation may occur,

this can be clearly noticed as it produces intense sounds andpipes will vibrate. For this reason, the butterfly valves must not

be used for partial aperture in a permanent manner.

The butterfly seals against the seat in the body with a rubberstrip that is placed around the perimeter of the disc. Therotation shafts (bi-eccentric) remain outside of the central planeof the disc (fig.2), in order to prevent interference with therubber seals in these zones.

The rotation tendency is to close after a certain deviation of theopen position, due to the distribution of pressures caused bythe flow together with the bi-eccentricity of the shaft (fig.3). Thismeans that valves of this type can be closed even without theassistance of servo-motors, or in cases of power supply failure,by manual operation, which is extremely advantageous asthese valves are used as closure mechanisms in emergencysituations.


Fig. 1

Fig. 2




MB-1


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The actuation method which is usually used to operate thesevalves is an oil servo motor and counterweight system. Thissystem uses the force of gravity of a weight outside the valve,joined to the rotation shaft of the disc by a mechanical arm.The arm is also joined to the oil servomotor which allows thevalve to be opened, this in turn hydraulically or mechanicallylocks into the completely open position, which is the highestcounterweight position. The valve closure process begins by

freeing the counterweight.

The closure time can be adjusted at will by regulating the oilflow of the servomotor cylinder, preventing water hammer inthe pipe.

It is also possible to operate the valve with an electro-mechanical actuator. Manual actuation may also be carriedout in cases of power failure.

When designing the operating mechanism of the valves, thefollowing two scenarios must be considered:

1. Intake conduits with relatively low speeds

(< 5m/s) and high pressures: This is the case withpressurized conduits in turbines, where these valves aremainly applied as emergency devices, the resulting torqueon the disc shaft will be the main force needed to overcomethe friction forces on the shafts and seals; in this case, thetorque from the distribution of hydrodynamic pressure on thedisc will be minimal.

2. Bottom and general discharges in high speedconduits in which the valves must be manoeuvredwith flow, under free discharge conditions: Thetorque needed to overcome the forces of friction on theshafts and seals is small in comparison with the torque

produced by the distribution of hydrodynamic pressures inthe butterfly (dynamic torque). This torque is magnified if the

valve is larger, and if the fluid speed is higher. For thisreason, on valves of a large size, a technical viability studyis required. See the figure where the required correction ofvalve robustness for the increase in speed. (Fig. 3)


A butterfly valve has the following elements:BodyDiscShaftActuation cylinderBy-pass deviceVenting system

Body:

The body is formed by a shell with two flanges on the ends. Theouter part is reinforced with ribs welded both to the shell andthe flanges. The complete unit is normally manufactured in

carbon steel S275JR. The closure seat is comprised of astainless steel ring in AISI304 welded to the inside of the shell.The shaft housings are manufactured by welding highlyresistant parts to the shell which then transfer radial loads to therest of the body. After the welding process, the stabilisationprocess takes places along with the subsequent finalmachining.

Disc:

The disc (fig.4) is formed by a main deep circular discmanufactured in carbon steel or in different qualities of

MBMODEL



MB-2


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Fig. 3

Fig. 4 Speed - pressure curves.


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MB-3


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MBMODELstainless steel. For large and/or high pressure valves, the maindisc is reinforced with another parallel plate joined by ribs

running lengthways in the direction of the water, forming a"biplane" type structure which is both very robust andhydrodynamic. The main deep disc is machined at the end inorder to house the special profile of the EPDM watertight seal.This seal is held by a ring secured with a stainless steel screw.

Shaft:

The shafts are solid stainless steel AISI 431 and rotate on self-lubricating bronze bearings. The shafts are attached to the discby keyways or a groove.

Standard actuation:

Actuation is performed by a hydraulic cylinder. In order toprovide the emergency closure characteristic, the system isequipped with a counterweight. The butterfly is opened byintroducing pressurised oil in one of the chambers of thehydraulic cylinder. The closure occurs by action of thecounterweight, which is joined to the shaft by a lever. Onreleasing oil from the cylinder, the counterweight lowers

closing the disc. The cylinder acts as a hydraulic absorberbecause when it controls the flow of released oil, the closurespeed is controlled thus fast at most of its stroke to avoid waterhammer and slow at the end to avoid final slam in the pipe.

The unit is dimensioned in order to be able to open and closein high head waters.

By-pass device:

The by-pass device is comprised of a steel pipe, and twogate valves with external spindel in stainless steel and adisassembly carriage. Thus allowing pressures upstream anddownstream of the butterfly to be balanced.

Venting system:

The air adduction system normally consists of one or various

dual function air relief valves, protected by their respective gatevalves, joined to the main pipe downstream of the butterfly. Itsmain function is the aerate the pipe in case of a breakdownstream, thus preventing a collapse due to the vacuum thatwould otherwise be present and, in addition, to allow trappedair to be released when necessary.

4. ACTUATORS

This valve can be actuated manually (fig.6), electrically (fig.7)and hydraulically (fig.8), although the application usuallyselected is the hydraulic actuator due to the high stressesrequired. The hydraulic actuator may be self-contained (fig. 8)or with the cylinder to the floor for increased forces (fig.1).

The hydraulic unit will normally be equipped with a doublemotor pump and an emergency manual pump. The hydraulicreset system used will depend on the size of the hydrauliccylinder, both accumulators and/or pressure switches

(maximum and reset) may be used.

The electrical cabinet has a PLC for programming the opening,closing and emergency closing manoeuvres along with furthermanoeuvres specific to each case.

Fig. 5

Fig. 6 Manual actuation


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MB-4


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ORBINOX butterfly valves are designed to support water loadsof up to 64 bars and water speeds of up to 5 m/s in sizes upto 4000.

Consult our technicians for the combination of valve sizes andpressures with higher speeds.




50 microns zinc rich primer300 microns bituminous paint of an epoxyresin and tar combination

Steel structures in open air:








Structural Parts:

DIN ASTM EN 10025

1.0044 A570 Gr40 S275JR

Stainless Steels

DIN AISI EN 10088

1.4307 304L X2CrNi18-9

1.4404 316L X2CrNiMo17

1.4462 A240

8. TESTS

Hydraulic Tests:

Body at 1.5 x Design Pressure

Valve tightness at 1.1 x Design Pressure.

Fig. 7 Motor actuator

Fig. 8 Hydraulic Actuator

MBMODEL


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MB-5


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MBMODEL

1. Actuator: -

2. Body: S-275-JR

3. Disc: S275JR/AISI304L/AISI316L/DUPLEX 2205

4. Seal: EPDM/VITON/NITRILE

5. Seat: AISI 304/AISI316/DUPLEX 2205

6. Seal ring: AISI 304/AISI316/DUPLEX 2205

7. Shaft: AISI 431

8. Bearing: Bronze, self lubricating with graphite inserts

9. Shaft seal: EPDM/VITON/NITRILE

10. Keyway: F114



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MB-6


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MBMODELOPERATING CONDITIONS

Valve application:Maximum operating pressure: mwcDesign Pressure: mwcMaximum Flow: m3/sEmergency overspeed closure Yes

No

CHARACTERISTICS

Nominal conduit diameter: mm

Flange standard: PNANSIOthers

Actuator: Hydraulic + counterweightHydraulic UnitElectrical Cabinet ( V/ Hz)

Electric: ( V/ Hz)ManualObservations:

TESTS


Other:

OBSERVATIONS

BUTTERFLY VALVE SPECIFICATIONS


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CTMODEL

Tainter type radial gates are gates with a pivoting sectionwhich be located in channels and dam spillways either ascontrol elements for water levels or as regulation and dischargeelements in deepwater outlets of dams.

It is a unit formed by a mechanically welded curved sectorshaped gate which closes with elastomer profiles attached tothe gate with fixed parts embedded in the concrete.

The cylindrical surface or gate is concentrical to the supportshafts, so that the thrust produced by the water will passthrough them; this method therefore only needs a small amount

of movement to raise or lower the gate. The loads to be movedinclude the weight of the gate, the friction resistance betweenthe side closures, the piers and the shaft friction resistance.

Its main advantages are:

Lifting force is considerably lessRegulation capacitySafe and simple operation and rapid lifting

2. DESIGN AND MANUFACTURING CHARACTERISTICS

All ORBINOX gates are designed for the specific serviceconditions of each particular case.


Standards and criteria used for testing:

DIN 19704: Hydraulic Steel Structures. Criteriafor Design and Calculation.

DIN 19705: Hydraulic Steel Structures.Recommendation for Design, Construction andErection.

The gates which are used in channels and dam spillways arewatertight on 3 sides, sides and bottom (fig.1) and aredesigned to support overspills if needed.

The gates which are used as a regulation and dischargeelement for deepwater dam outlets are watertight on 4 sides,upper face, sides and lower face (fig. 2). The completestructure is correctly reinforced in order for it to support thehigh mechanical stresses.

A radial gate has the following elements:

Gate

ArmsFixed partsActuator

Gate:

The taintor gate is formed of a skin plate reinforced withhorizontal and vertical beams to form a rigid unit. In somecases the rigidity in the central region is provided by a boxbeam in addition to the horizontal and vertical beams.

The gate is guided at the side by a system of rollers which aresupported along their route on the fixed side parts.

Fig. 1 Spillway





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Fig. 2 Bottom outlet


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CT-2


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CTMODELThe gate is guided at the side by a system of rollers which aresupported along their route on the fixed side parts.

Arms:

The arms joined to the gate are formed by mechanicallywelded structures and transmit the stresses to the concretethrough maintenance free spherical bearings. The bearingshave large-sized bolts through which the thrust is transmitted tothe base plate on the concrete. Base plates are sized in orderto uniformly distribute pressure to the concrete, without saidpressures resulting excessive.

Fixed parts:

Water tightness on three sides (sides and bottom) is achievedwith special profiles of EPDM elastomer (Ethylene-propylene)located on the gate. These profiles are secured using smallmetal plates and stainless steel screws. Both the side and lowerclosure surfaces are embedded in the concrete and are madeof stainless steel AISI 304.

4. ACTUATORS

Manoeuvres are performed using two double acting hydraulic

cylinders, with stainless steel chrome plated shaft. The normaloperation pressure is between 60 and 120 Bar.

The hydraulic unit is equipped with a double motor pump andan emergency manual pump. The system is also equipped withautomatic locking for the open position which detects any lossin the gate position and resets the unit until it is positioned inthe completely open position again. The electrical cabinet isequipped with a PLC for programming opening and closuremanoeuvres.


ORBINOX "Tainter" radial gates are designed for:

a) Spillway gates: supporting water loads equal to themaximum gate height plus the specified overspill in eachcase.

b) Bottom outlet gates: water head of up to 100 mwc.

Consult our technicians about special overspills and/orhigher water heads.






Steel structures in open air:Sand blasting SA 2 1/2







Structural Parts:

EN 10025 DIN ASTM

S275JR 1.0044 A570 Gr40

Stainless Steels

EN 10088 DIN AISI

X2CrNi18-9 1.4307 304L

X2CrNiMo17 1.4404 316L

DUPLEX 2205 1.4462 A240


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CTMODEL



CT-3


www.orbinox.com

1. Gate: S275JR

2. Arms: S275JR

3. Hydraulic Cylinder: S275JR steel with shaft in ASI 420

4. Bearing shaft: AISI 431

5. Bottom fixed parts: S275JR

6. Bottom seat: AISI 304

7. Bottom seal: EPDM

8. Side fixed parts: S275JR

9. Side seat: AISI 30410. Side seal: EPDM



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OPERATING CONDITIONS

Gate application:Type of gate: Spillway (sealed on 3 sides)

Maximum overspill: mmBottom outlet (sealed on 4 sides)

Maximum operating pressure: mwcDesign Pressure: mwc

CHARACTERISTICS

Size of the opening mm x mm

Actuator: Hydraulic:Hydraulic UnitElectrical Cabinet ( V/ Hz)

Observations:

TESTS


Other:

OBSERVATIONS



CT-4


www.orbinox.com

CTMODELTAINTOR GATE SPECIFICATIONS


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MV-1


www.orbinox.com

MVMODEL

Slide roller gates (fig. 1 and 2) are normally used to shut oflarge openings and high water loads. They are commonly usedas protection mechanisms at hydraulic power stations wherethey can also be used as a regulation mechanism for theturbine coupling with the network (fig.2).

It is a gate formed by a strong reinforced fabricated structure,for which the guiding system works using a side roller systemwhich reduces the gate's operation loads.

All ORBINOX gates are designed for the specific serviceconditions of each particular case.


Standards and criteria used for testing:

DIN 19704: Hydraulic Steel Structures. Criteriafor Design and Calculation.


Erection.The roller gate includes the following elements:

GateFixed partsVariousActuator

Gate:

Flat fabricated structure covered on its high pressure side by askin plate adequately reinforced with beams. Normally boththe skin plate and the beams will be made of carbon steel. At

the side of the gate a roller system is installed on stainless steelshafts which enable the gate to be guided throughout itsmanoeuvres thus reducing operational loads.

The number of rollers will depend on the dimensions of the gateand the loads to be supported. It also has a side guidingsystem which may have sliding or auxiliary rollers. At the topof the panel is the large-sized shaft tie. The design of the gateis calculated for correct operation under extreme serviceconditions.

Fig.1 Roller gate

1. GENERAL DESCRIPTION 2. DESIGN AND MANUFACTURING CHARACTERISTICS


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MVMODEL



MV-2


www.orbinox.com

The gate water tightness is obtained through contact ofelastomer profile seals with the seat. The seals are secured to

the gate with stainless steel plates and screws and the seat,also made of stainless steel, is embedded in the concrete. Allsteel gates surfaces have an appropriate anti-corrosionprotection for the service conditions.

Fixed parts:

The fixed parts are formed by two side profiles of laminatesteel embedded in the concrete which form vertical supportsserving as a guide for the rollers and which extend to theoperation floor level. These supports house the front and sidepressure runways and the counter pressure runways and are

appropriately reinforced in order to transmit loads to theconcrete. The seal side and at the bottom of these profiles havestainless steel plates on the sides to serve as a contact surfacewith the elastomer in the seal position. These side plates will beplaced right up to the maximum opening position of the gatein order for the watertight seals to slide along them. In civilworks a profile with a stainless steel plate will be concretedand will form the top seating face of the gate to provide watertightness for the upper seal.

The bed is also placed on a concrete profile with a stainlesssteel surface for the lower seal. All steel surfaces of the gate

have adequate anti-corrosion protection for the serviceconditions.

By-pass:

Although the roller gates are dimensioned to operate under themost unfavourable of conditions, there is the option of installinga by-pass incorporated in the gate panel which will act with themain actuator and which will enable the gate to be openedwith balanced loads.

3. ACTUATORS

Actuator:

The actuator may be electric (fig.3) or hydraulic(fig. 4).

Fig. 2. Electric actuator Fig. 3. Hydraulic Actuator


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MVMODEL



MV-3


www.orbinox.com

Hydraulic Actuator

The actuator operations are usually carried out by a doubleacting hydraulic cylinder with stainless steel chrome platedshaft. In the case of roller gates for protection purposes athydraulic power stations, the actuator is commonly a singleacting hydraulic cylinder with shock absorption on the finalsection where the gate is designed to close by force of gravity,adding ballast if necessary against passage flow. In both casesit has a mechanical position indicator device.

In cases where there is a large distance between the operationfloor and the gates, a mechanical link system is used to join thetwo.

The hydraulic operation unit has an oil tank with a double

motor pump (one for emergency purposes) and a manualemergency pump. The system is equipped with the necessarysafety devices to prevent gate position losses.

The electrical operation cabinet is equipped with a PLC forprogramming opening and closure manoeuvres. It has thenecessary buttons and indicators for controlling the gateoperations.


The slide gates are designed to support water loads of up to100 mwc.

Consult our technician for special load conditions.





Steel structures in open air:







Structural Parts:

EN 10025 DIN ASTMS275JR 1.0044 A570 Gr40

Stainless Steels

EN 10088 DIN AISI

X2CrNi18-9 1.4307 304L

X2CrNiMo17 1.4404 316L

DUPLEX 2205 1.4462 A240




29/32

MVMODEL



MV-4


www.orbinox.com

WHEEL DETAIL

CC SECTION

SIDE/TOP SEAL

BOTTOM SEAL

A-A SECTION

1. Gate: S275JR 6. Side fixed parts: S275JR

2. Actuator: Hydraulic/Electric 7. Side seat: AISI 304

3. Wheels: AISI 431 8. Side/bottom/upper seal: EPDM

4. Bottom fixed parts: S275JR 9. Indication device: AISI304

5. Bottom seat: AISI 304



30/32

MVMODEL



MV-5


www.orbinox.com

OPERATING CONDITIONS

Gate application:Bottom outletHydraulic power stations (turbine)Other:

Maximum operating pressure: mwcDesign Pressure: mwc

CHARACTERISTICS

Size of the opening mm x mmOperation floor-gate distance: m

Actuator: Electric:Hydraulic:

Hydraulic UnitElectrical Cabinet ( V/ Hz)

Bypass:Observations:

TESTS


Other:

OBSERVATIONS

ROLLER GATE SPECIFICATIONS


31/32


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ORBINOX, GERMANYKurzer Morgen 3D-58239 SCHWERTETel. +49 230 49 57 05 70Fax +49 230 49 57 05 79e-mail: [email protected]

ORBINOX, UKUnit 15 Temple Bar Business ParkStrettington Lane, CHICHESTERWEST SUSSEX PO18 0TUTel. +44 (0) 870 240 7468Fax +44 (0) 870 240 7469e-mail: [email protected]

ORBINOX, INDIAA-13 & A-14, Private Industrial EstateKurichi COIMBATORE641 021 (TAMIL NADU)Tel. Fax +91 (422) 2671261e-mail: [email protected]

ORBINOX COMERCIALPol. Industrial Beotibar s/n20491 BELAUNTZA - SPAINTel. +34 943 69 80 33Fax +34 943 65 30 22e-mail: [email protected]

ORBINOX, CHINA208 Jinfeng Road South, Mudu TownSUZHOU 215101 CHINATel. +86 512 6656 9568Fax +86 512 6656 9571e-mail: [email protected]

ORBINOX, FRANCE22, Rue Jean Rostand69740 GENASTel. +33-4.78.04.01.25Fax. +33-4.78.04.03.56e-mail: [email protected]

ORBINOX, CANADA2050 Dagenais Blvd. WestH7L 5W2 LAVAL, QUEBECTel. +1 450 622 8775Fax +1 450 622 6831e-mail: [email protected]

ORBINOX, USA311 North Front Street38821 AMORY, MISSISSIPPITel. +1 662 256 2227Fax +1 662 256 2119e-mail: [email protected]

www.orbinox.com

ORBINOX S.A.Pol. Industrial s/n20270 ANOETA - SPAINTel. +34 943 69 80 30Fax +34 943 65 30 66e-mail: [email protected]

VALVE SOLUTIONS IN MORE THAN 70 COUNTRIES

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