USER MANUAL TBVS8
Contents
1. Problem The required set pressure can not be reached Cause The inlet pressure is not high enough Solution Make sure that the inlet pressure is sufficient Problem The outlet pressure rises too much when flow increases Cause There is too much flow passing through the regulator Solution Check the specific application data with the flow tables in our documentation Note that the differential pressure over the seat is very low Problem The regulator keeps venting in a tankblanketing application Cause Thermal expansion of the blanket gas Solution This is not a problem the regulator functions well Problem The regulator is placed in the system and has different flow characteristics than printed in the documentation Cause Inside diameter of the piping or fittings are too small Piping too long Solution Install the regulator with proper piping and connections Consider the pressure drop caused by piping resistance Warranty Information Swagelok products are backed by The Swagelok Limited Lifetime Warranty For a copy visit swagelok com or contact your authorized Swagelok representative RHPS Series ern OWI2. depend on the seals used The TBVS8 comes standard with a soft rubber seat seal for leak tight shut off in zero flow conditions The regulator can stand high inletpressure because of the solid construction The maximum in and outlet pressure for the TBVS8 are Inlet Outlet pressure vacuum minimum 6 bar maximum Standard features ss 316L throughout diaphragm sensing 4 pressure ranges 21 mm seat internal pressure sensing 1 2 Special features and options different line connections different seal materials RHPS Series kn OWAN 1 3 Typical picture of the TBVS8 YA Nd ih ea TU 1 body assembly 11 valve guiding ring 24 setscrew 2 springhousing assembly 12 retaining ring 25 springhousing cover 3 ring 13 seal housing 27 ring 4 socket head screw 15 diaphragmplate 28 nut 5 bodyplug 16 o ring 30 diaphragm 6 valve ring 18 o ring 31 support diaphragm 7 valve o ring 19 o ring 34 nut 8 valve stem 21 setspring 35 ring 9 valve seat 22 springguide 36 socket head cap screw RHPS Series TBVS8 User Manual Rev date 20 09 2010 OWAN 2 Installation JN WARNING A BACK PRESSURE IS NOT A SAFETY VALVE AND SHOULD NOT BE USED AS SUCH 2 1 Points of attention before installation This regulator can be equipped with different options and connections Before installing the
3. its accessories are suitable for the system operating pressure and have the proper connections Carefully clean all pipes and connections Any swarf lint wire etc may cause seat leakage Verify the flow direction of the system and mount the regulator accordingly Securely make the appropriate connections to the regulator in accordance with the procedures recommended by the manufacturer of the connections Verify that the regulator is mounted in the system without stress on the connections Stress on the connections can result in faulty connections and dangerous situations Make sure the maximum inlet and outletpressure cannot exceed 6 bar Shut off valves should be mounted in the system for service or maintenance If earthing is required connect an earth wire under a springhousing bolt RHPS Series een OWAN 3 3 1 Operation Required tools for operation Use a socket wrench 19 mm with an extended piece to change the setpressure 3 2 Points of attention before operation The product can be hot or cold depending on the environment temperature and the used media temperature Take the necessary precautions before operating or touching the product If this regulator is used with hazardous or toxic media take the necessary safety precautions to ensure a safe workspace and your personal safety Vent to a safe environment away from people and ensure adequate ventilation After flow the inlet pressure will fall a
4. regulator you should fully understand the options and the suitability of your particular regulator and its suitability for the application sketch with mounting modes The preferred mounting position of the regulator is vertical with the springhousing facing horizontal see above sketch The reason is the weight of the diaphragm plate in this position it does not effect the regulation Avoid sealing compounds which harden be careful with anaerobic loctite type compounds Particles of these compounds can run into the regulator and lock moving parts Frequent assembly and disassembly of the in and outlet fittings can damage the in and outlet thread of the regulator Damaged threads can cause serious injury It may be necessary to remove the regulator from the system during maintenance or service Make sure that this is possible The regulator is suitable for gases Check if the materials on the assembly drawing which came with the regulator are compatible with the used media The product is designed to be used with the ambient temperature between 20 C and 80 C The limits of the medium temperature depend on the used seals The regulator is standard not oxygen clean Although all regulators are ultrasonically cleaned this does not make them suitable for oxygen use 2 2 Installation instructions Verify that the regulator the connections and its accessories are undamaged Verify that the regulator and
5. Inertisation Tankblanketing regulators Bar USER MANUAL TBVS8 Read the complete manual before installing and using the regulator RHPS Series Ee OWAN N WARNING INCORRECT OR IMPROPER USE OF THIS PRODUCT CAN CAUSE SERIOUS PERSONAL INJURY AND PROPERTY DAMAGE Due to the variety of operating conditions and applications for this product the user is solely responsible for making the final proper decisions concerning the correct assembly and functioning of the product and assuring that all the performance safety and warning requirements are met e Users must be trained and equipped for the handling use and servicing of pressure products and systems e Users must contact their gas or liquid supplier for specific safety precautions and instructions e Gaseous media should be free of excessive moisture to prevent icing at high flow e Always wear the appropriate protective clothing including safety glasses gloves etc if required e Follow the applicable safety and maintenance procedures e Obey specific local regulations e Do not exceed the maximum inlet and outlet pressure of the product or its accessories e Operate within the temperature limits and other conditions specified for the product e Do not to drop or damage the product in any other way This may negatively effect the performance of the product which can cause the product to malfunction e Venting fluids and gases can be dangerous Vent to a safe environment aw
6. ay from people Ensure adequate ventilation e This product is not oxygen clean and therefore not suitable for oxygen service If there are questions or problems regarding the installation operation and maintenance these should be directed to the proper authority on site before continuing RHPS Series en OWAN CONTENTS 1 Introduces dn vend nadn ende de cevecudeseeecudereeGnedeteeecaes eesencauscvzenedetdencdetdeetaaeveenedeteeeneds 1 1 Detailed CeSCriptO mis cece tics setts nates teeters tee psec gid eeadee ep dubdeeee sities A 1 2 Special features and options nnee ennn enenneerennerrennevensenenneerenernennerensenenneevenennenenenneenennenenn 1 3 Typical picture of the TBVS8 anneer i aani aaia a anaiai aaa N aE 2 MmstalatioiM sosi aE a EEEE EEEE AE 2 1 Points of attention before installation nonnen naana AA ANSA REA 2 2 metalation IMStUCHONS esst a a EAN E A 3 Operati Mii aeaaeae e eai a a eraa iaaa a aeaaeae aaa aE aeaea ae ra aa aa aaa 3 1 Required tools for operation sssaaa aS a RA RAAE T aR 32 Points of attention before Operation ennsennenenneneeneneneenensereenenseneenenseneenenseeeenensereenensenn 3 3 Changing the setpreSSUr rsisi iania esak aesaad ea aaa aa aata aaia ia aa 4 Maintenane iseen eenen annae nde reden danae aenema secteur eactagercestencteccagus 4 1 Required tools for maintenance nnn ennen eneen eneen enneeeenenneeeenenneeeenennenervennenenvennenenvennenn 4 2 Points of attentio
7. from the system Isolate the regulator from all pressure sources by closing the appropriate valves in the system Turn the setscrew counterclockwise to decrease the setpressure a shut off valve on the downstream side must be opened to relief the pressure Make sure the inlet and outlet pressure are both reduced to zero and the setscrew is turned counterclockwise until there is no more spring force on the setscrew Disassembly Loosen the socket head screws 12 pcs M6 and remove the springhousing and the setspring Loosen the nut on the valve stem and remove the diaphragm plates and diaphragm Remove the retaining ring and take out the valve guiding ring and the valve assembly Loosen the bodyplug from the body and remove the bodyplug and seat Loosen the socket head screw from the valve assembly and remove the valve o ring Inspection of disassembled parts Check all parts for abnormal wear Replace all parts in case of doubt Points of attention before assembly All parts must be clean and undamaged before starting assembly SWAGELOK B V recommends replacing all o rings and the diaphragm before assembly All threaded parts must be lubricated a little before assembly this to avoid galling of threads Assembly Follow the points for disassembly in reverse order to assemble the regulator RHPS Series ern OWI 4 8 Recommended torques Bodyplug 40 Nm Valve assembly socket head screw 10 Nm Nut on the diaphragmscrew M10 10 N
8. little under the set pressure This is because of the closing force required for bubble tight closing of the regulator This phenomenon is usually referred to as the reseat pressure and does not indicate a problem with the regulator An increase in the flow will result in a rise of the set pressure A decrease in the flow will result in a fall of the set pressure This is because of the force required for opening the valve of the regulator This phenomenon is usually referred to as the accumulation pressure and does not indicate a problem with the regulator An increase of the outlet pressure will result in a fall of the set pressure A decrease of the outlet pressure will result in a rise of the set pressure This phenomenon is usually referred to as the dependency and does not indicate a problem with the regulator Changing the setpressure Check the supply of medium at the inlet side Make sure the inlet pressure is higher than the required set pressure and that the inlet pressure does not exceed the maximum allowed inlet pressure Open the shut off valve at the outlet side Open the shut off valve at the inlet side slightly to allow a minimal flow Turn the adjustment knob clockwise to increase the set pressure Turn the adjustment knob counterclockwise to decrease the set pressure A shut off valve on the outlet side must be opened to relief the pressure on the outlet side Final adjustment must be made while increa
9. m Socket head cap screws 16 pcs M06 10 Nm Springhousing cover 5 Nm 49 Testing Check the TBR8 for leakage across the seat bodyplug and the diaphragm Check the required setpressure range and function Turn the setscrew clockwise a few turns Maintain a test pressure on the upstream side of the regulator The upstream pressure will increase till it reaches the setpressure Vent a bit of the inletpressure to check leakage across the seat Set the regulator at the maximum setpressure Check for leakage across the diaphragm and check the small hole in the springhousing for bubbles by using a little soapy water Check for leakage across the bodyplug If there is leakage across the seat or the diaphragm the damaged parts must be replaced RHPS Series etn OWAN RHPS Series eae OWOKADE 5 Trouble shooting Problem Constant leakage from the outlet before the relief set pressure is reached Cause A damaged valve and or seat o ring Solution Replace the valve and or seat o ring Problem Constant leak through the hole at the side of the springhousing Cause Damaged diaphragm or not enough torque on the nut on the diaphragmscrew Solution Replace the diaphragm or tighten the nut Problem Leakage between the body and the springhousing Cause A damaged diaphragm or insufficient torque on the bolts Solution Check the torque on the bolts or replace the diaphragm
10. n before removal from the system nnn ennen eneen enneneenennenervennenenvenvenn 4 3 Removal from the system nanne enneenenenneeeenenneeeenenneenenenneeeenenneeeenennenenvenneeenvennenenvennen 4 4 Digass emoy EEE 4 5 Inspection of disassembled parts nnn anneer eneen eneen eneen enneeeenenneeenvenneervennnenvennenn 4 6 Points of attention before assembly nanne eneen enneenenennneeenenneeeenennneeeenennenernenneenennen 4 7 DAT le NE 4 8 RECOMMOENCER Co o B 4 9 TE UDO ect ses Secu set eet eee antenne entree nente renten enteren 5 Krouble ShOOUNG sie ARA ETEA AAAA AARAA RHPS Series en OWAN 1 Introduction 1 1 Detailed description This regulator is a diaphragm sensing spring loaded back pressure regulator designed to regulate low pressures at medium gaseous flow The back pressure regulator keeps control of the inletpressure If the inletpressure exceeds the setpressure the valve opens and gas starts to flow It is ideal for highly accurate control of pressure because of it s large effective sensing area Because of the low friction valve guidance the regulator is ideal for use in low pressure tankblanketing as a ventvalve back pressure regulator The regulator comprises a body and spring housing bolted together The valve and seat can be taken out by disassembling the regulator The product is designed to be used at ambient temperatures between 20 C and 80 C The limits of the medium temperature
11. part kits is there Despite all the effort taken to assure a clean system there is usually some debris left in the system which can damage the regulator Having spare part kits on site will save time and money as the downtime of the system will be reduced to a minimum whether during start up or normal operation 4 1 Required tools for maintenance a vice to fasten the regulator pincers to take out the o rings a torque wrench a torque wrench hexagon head key 5 socket wrenches 10 17 19 open end wrench 6 mm snap ring pliers for retaining ring 38 media and temperature compatible lubricant for reassembling threaded parts media and temperature compatible lubricant for o rings soapy water for leak testing RHPS Series kn WIA 4 2 4 7 Points of attention before removal from the system SWAGELOK B V recommends removing the regulator from the installation Make sure that a spare part kit is present Check if the used media is hazardous or toxic If required take the necessary safety precautions to ensure a safe workspace and your personal safety Vent to a safe environment away from people and ensure adequate ventilation Follow your system safety maintenance or special local procedures when removing the regulator The product can be hot or cold depending on the environmental temperature and the used media temperature Take the necessary precautions before operating or touching the product Removal
12. sing the set pressure to obtain the most accurate set point s Reduce the inlet pressure until there is no more flow Open the shut off valve at the inlet side fully to allow full flow during operation RHPS Series een WIA 4 Maintenance N WARNING INCORRECT OR IMPROPER REPAIR OR SERVICING OF THIS PRODUCT CAN CAUSE SERIOUS PERSONAL INJURY AND PROPERTY DAMAGE SWAGELOK B V recommends the product to be removed from the system and to be shipped to SWAGELOK B V for service or maintenance as all regulators must pass rigid acceptance tests before leaving the factory All repairs and servicing of this product must be performed by factory certified personnel and tested for operation and leakage If this procedure is not followed for any reason or if any customer changes are made to the product SWAGELOK B V cannot assume responsibility for the performance or safety of a customer repaired product or for any damage resulting from failure of the product The product should be checked periodically for proper and safe operation It is the users sole responsibility to determine the frequency of maintenance based on the application D RECOMMENDATION SWAGELOK B V RECOMMENDS TO HAVE SPARE PART KITS READILY AVAILABLE ON SITE All regulators require maintenance at scheduled intervals Annual maintenance is recommended under normal use From experience SWAGELOK B V can tell that especially during the start up of a system the demand for spare
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