LRS(H)4 - Swagelok
Contents
1. 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 Check if the in and outlet fittings are fitted far enough into the regulator and check for leakage across the fitting Use a safety valve in the outlet line when the inlet pressure is more than 35 bar Shut off valves should be mounted in the system for service or maintenance At the time of delivery the gauge connections are plugged with 4 NPT blind fittings Remove these and connect gauges if desired If earthing is required connect an earth wire under a spring housing bolt or in a bottom mounting hole RHPS Series eee ety WOKE 3 Operation 3 1 Required tools for operation For changing the set pressure on a standard regulator no tools are required 3 2 Points of attention before operation The adjustment knob is provided with an anti turnout locking ring don t force it 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 the regulator is a non venting type then a shut off valve on the outlet side must be opened to relief the pressure on the outlet side SWAGELOK B V recommends not to use a self venting version option S with hazardous or toxic media If required take the necessary safety precautions to ensure2. a safe workspace and your personal safety Vent to a safe environment away from people and ensure adequate ventilation If the shut off valve on the downstream side is closed after changing the set pressure the outlet pressure will rise a little because of the closing force required for bubble tight closing of the regulator This phenomenon is usually referred to as the lock up and does not indicate a problem with the regulator A decrease in the flow will result in a rise of the outlet pressure An increase in the flow will result in a fall of the outlet pressure and is usually referred to as the droop This phenomenon does not indicate a problem with the regulator A decrease of the inlet pressure will result in a rise of the outlet pressure An increase of the inlet pressure will result in a fall of the outlet pressure This phenomenon is usually referred to as the dependency and does not indicate a problem with the regulator Changing the set pressure Check the supply of medium at the inlet side Make sure the inlet pressure is higher than the required outlet pressure and that the inlet pressure does not exceed the maximum allowed inlet pressure Open the shut off valve at the inlet side Open the shut off valve at the outlet 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 Open the shut of
3. 4 Replace the cartridge Problem Controlled pressure drops off sharply even when the flow is within regulator capabilities Cause The filter element is clogged Solution LRS4 Replace the filter and the filterring LRSH4 Replace the cartridge Problem Constant leak through the relief hole at the side of the spring housing Cause A damaged relief seat or diaphragm or the regulator is mounted in the wrong position Also a damaged valve and or seat may cause the outlet pressure to rise and as a result of this the self venting regulator will start to vent through the relief hole Solution Assemble a new relief seat or diaphragm Mount the regulator in the correct position LRS4 Check the valve and or the seat and replace if necessary LRSH4 Check the cartridge and replace if necessary Problem The required outlet 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 going from a dynamic to a static situation Cause There is too much flow in the dynamic situation Solution Check the specific application data with the flow curves in our documentation A regulator with external feedback will solve or improve this problem Problem The outlet pressure does not drop if the adjustment knob is turned counterclockwise Cause The regulator is standard non venting Solution A shut off valve in the outlet line
4. LRS H 4 USER MANUAL Read the complete manual before installing and using the regulator RHPS Series Sort WOKE 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 high pressure products and systems Users must contact their gas or liquid supplier for specific safety precautions and instructions Gaseous media should be free of excessive moisture to prevent icing at high flow Always wear the appropriate protective clothing including safety glasses gloves etc if required Follow the applicable safety and maintenance procedures Obey specific local regulations Do not exceed the maximum inlet and outlet pressure of the product or its accessories Operate within the temperature limits and other conditions specified for the product Do not 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 Venting fluids and gases can be dangerous Vent to a safe environment away from people Ensure adequate ventilation e This product is n
5. ad cap screw 26 ring FLOW RHPS Series eet WOKE 2 Installation N WARNING A PRESSURE REGULATOR IS NOT A SHUT OFF 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 regulator you should fully understand the options and the suitability of your particular regulator and its suitability for the application The preferred mounting position of the regulator is horizontal with the adjustment knob facing upwards It may be necessary to remove the regulator from the system during maintenance or service Make sure that this is possible especially if mounted in a different position The regulator is suitable for gases and liquids Check if the materials on the assembly drawing which came with the regulator are compatible with the used media If you have a self venting version option S NEVER plug off the 1 NPT female relief connection at the side of the spring housing SWAGELOK B V recommends not to use a self venting version option S with hazardous or toxic media 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 Avoid sealing compounds which harden be careful with anaerobic loctite type compounds Particles of these compounds can r
6. ction 1 1 Detailed description This regulator is a diaphragm sensing springloaded pressure regulator designed for low and high inlet pressure It is ideal for highly accurate control of pressure because of it s large effective sensing area Combined with the low torque no wear stem the regulator is ideal for use in frequent readjustment type applications The regulator comprises a body and spring housing bolted together and has a removable seat and valve or a cartridge The product is designed to be used between 20 C and 80 C whether ambient temperature or media temperature The LRS4 is for low inlet pressure and comes standard with a rubber seat for leaktight shut off in zero flow conditions The LRSH4 is for high inlet pressure and comes standard with a soft seat for leaktight shut off in zero flow conditions It also features an easy to replace cartridge which contains the seat the optional filter element and the unbalanced valve The maximum in and outlet pressure for the models are Threaded models LRS4 Inlet 35 bar Outlet 35 bar Threaded models LRSH4 Inlet 400 bar Outlet 35 bar AN When using the LRSH4 with an inlet pressure higher than 35 bar a safety valve must be installed in the outlet line because the outlet pressure may not exceed 35 bar AN Check the assembly drawing or regulator for the specific pressure limits of the supplied regulator Standard features ss 316L throughout diaph
7. f valve at the outlet side fully to allow full flow during operation If the regulator is a non venting type then a shut off valve on the outlet side must be opened to relief the pressure on the outlet side If the regulator is a self venting version the excess pressure will leave the regulator through the 1 NPT female relief connection at the side of the spring housing Self venting is an option RHPS Series eet OWAN 4 Maintenance iron 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 RECOMMENDATION SWAGELOK B V RECOMMENDS TO HAVE SPARE PART KITS READILY AVAILABLE ON SITE All regulators require ma
8. intenance 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 part kits is high This is despite all the effort taken to assure a clean system there is usually some debris left in the system which damages 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 pair of tongs for a retaining ring a torque wrench a torque wrench hexagon head key 5 a torque wrench socket 23 a seat retainer removing tool OT 1478 02 media and temperature compatible lubricant for reassembling threaded parts media and temperature compatible lubricant for o rings soapy water for leak testing RHPS Series eet WOKE 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 The adjustment knob is provided with an anti turnout locking ring don t force it 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 ensu
9. mbled 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 All o rings need to be lubricated a little to improve the lifetime of the o ring and the performance of the regulator Assembly Follow the points for disassembly in reverse order to assemble the regulator RHPS Series eet WOKE 4 8 Recommended torques A Only tighten the bolts or parts if the regulator is completely pressure less Hexagon socket head screws M6 10 Nm Diaphragm screw rubber ss316L diaphragm 5 10Nm Seat retainer 5 Nm Cartridge 30 Nm 4 9 Testing Check the LRS H 4 for leakage across the seat with low and high inlet pressure Check the LRS H 4 for leakage across the diaphragm with low and high outlet pressure Check the required outlet pressure range A well performing LRS H 4 is 100 bubble tight If there is a leakage across the seat or the diaphragm the damaged parts must be replaced RHPS Series eee ety WOKE 5 Trouble shooting Problem The outlet pressure creeps up without turning the adjustment knob Cause A damaged valve and or seat Solution LRS4 Replace the valve and or the seat LRSH
10. must be opened to reduce the outlet pressure Problem The outlet pressure has changed without turning the adjustment knob Cause Changes to the inlet pressure will result in changes to the outlet pressure Solution Maintain a constant inlet pressure to the regulator See section operation about dependency 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 LRS H 4 User Manual Rev date 20 09 2010 WOKE
11. ot 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 ao WOKE CONTENTS D gt WTO UCT ON asa sass cd sete E cece cede ce de sctecnceceddeed E E E 1 1 1 Detailed description iscdessitecttervitesite dialer ils decac dese a staan lace hota wala aaah aS 1 1 2 Special features and Option seii c ceissecunte lek ete edie a et eds cnad teh E aed aes E AE 1 1 3 Typical picture of the standard LRS4 and its component 0 cccceeeceeceeeeeeteteeeenteeeeeeeeteees 2 1 4 Typical picture of the standard LRSH4 and its component 2 ceeecceeeeeeeeeeeteteeeeeeeeeeees 2 2 INS tallatiOn oecicsiaccsececcccectcssse cece seen ceeeciee devesvenccuectuedetecs cectecceaeceseaeeecttcceanceceneeeecosedesnetecceessaecscadecastsiesecdscesceecs 3 2 1 Points of attention before installation cccseccececeeeeeceeeeceeeeeeeseeeneaeeeeeeeseseccaeaeeeeeeeseeeeeeeaeess 3 2 2 OXYGEN SENICE Bvescsaeccertdsteeerendeueva da levtatceugeld onesie ENE enlinde nea 3 2 3 INSTAllATOMAMSTFUCIONS vas sess cacy adcestiet necexveseabscausteananadsbanacdad A a a aa 4 3 ORCL AUN OI acoso acct aca cc ence Se se ete gt es detec cen aa nee deine Satan tet eau ae aeaaea eE aE aae A Ea 5 3 1 Required tools for operationis a a E a a EET 5 3 2 Points of attention before Opera
12. ragm sensing bubble tight shut off 3 outlet ranges bottom mounting 1 2 Special features and options The regulator is available with a lot of different options panel mounting external feedback self venting with captured venting below the panel filter ss 316L diaphragm only for 0 9 bar A When using the LRS H 4 with external feedback option EF make sure that the outlet pressure is fed back to the external feedback connection before applying pressure to the regulator Failing to do so may lead to damage and non functioning of the regulator as the inlet pressure will be put straight through to the outlet RHPS Series eet OWAN 1 3 Typical picture of the standard LRS4 and its components body springhousing valve case valve stem o ring valvespring seat 10 o ring 11 seat retainer 12 diaphragm screw 15 diaphragm 16 clampring 17 bottom springguide 19 set spring 20 springguide 22 springhousing cover 23 knob assembly 24 retaining ring 25 socket head cap screw 26 ring 1 4 Typical picture of the standard LRSH4 and its components SS HR VA IN fi 1 body DNI 2 springhousing d 3 cartridge 12 diaphragm screw N 15 diaphragm f 16 clampring 17 bottom springguide 19 set spring 20 springguide 22 springhousing cover 23 knob assembly 24 retaining ring 25 socket he
13. re 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 environment temperature and the used media temperature Take the necessary precautions before operating or touching the product Removal from the system Isolate the regulator from all pressure sources by closing the appropriate valves Turn the adjustment knob counterclockwise to decrease the set pressure If the regulator is a non venting type then a shut off valve on the outlet side must be opened to relief the pressure on the outlet side If the regulator is a self venting version the excess pressure will leave the regulator through the 1 8 NPT female relief connection at the side of the spring housing Self venting is an option Make sure that the inlet and outlet pressure are both reduced to zero and that the adjustment knob is turned counterclockwise until it blocks so that there is no more pressure in the regulator and no more spring force on the spring housing Disassembly instructions Loosen the hexagon socket head screws and remove the spring housing spring and bottom spring guide Remove the upper spring guide from the spring housing to replace the o ring if one is mounted The cartridge in a LRSH4 can now be removed Loosen the seat retainer on the LRS4 to remove the valve seat valve spring and the optional filter and filter ring Inspection of disasse
14. tion ccccccccceceeeeeeeeeeeeeeeeeeeseceeeaeeeeeeeeeseseeaeeeseseeesessenaeeaees 5 3 3 Changing the Set preSSUle neoriiororuirrei airiai ii nid ceevendacatbnledee used eee vined E AANE 5 Gh MAME TN ANC Si eo Sac cocci bee A eden cet ee E ete ee yabeaitacee E E 6 4 1 Required tools for Maintenance cccccceeceecceceeeeeeeeeeeaecaeeeeeeesesecaaeaeeeeeeesececaeeeeeeeeeseesnsieeaeess 6 4 2 Points of attention before removal from the system ceecceeeeeeeeeeeeneeeeeeeeeeseeeeeeteeaeeeseeeaees 7 4 3 Removal from the system cccececceeeeeeeeeeeeeeeeeteeeeeceneeeeeseneeeeeseeeaeeeeseneaeeeseeeaeeeseeeaeeeseeaeeeeeaees 7 4 4 Disassembly instructions cccceeeeeeceeeeeeeeeeeceeeeeeeceneeeeeseeeeeeeseeeaeeeseeeeeeeseneaeeeseeeaeeeseeaeeeseenaees 7 45 Inspection of disassembled parts ccccceceeeeeeeeeceeeeeeeeeeeeceeeeeeeeesececqaeeeeeeeeeseesecniaeeeseeteeed 7 4 6 Points of attention before assembly ce eeeeeeeeeeeeeeeenee eee eeeeeeeeceeeeeeeeeeeaeeeseeeaeeeseneaeeeseeaeeeeeeenaes 7 4 7 PASSEIMPIY fad oe sales tie edecis peseleis why eee paces by ae teed eh eee tas ee ste wh ee tee eee eee 7 48 Recommended torques cceeeeeeecnece cece eeeeeeenaeee eee ceeeseceaaaaaeeeeeeeseceaaaeeeseeeeesecqeeaeaaeeeeeeseeeennaneeess 8 4 9 TOS ecserin a T ET O E E eave eels 8 5 Tro ble SHootNg r a raaa a aaa aaa eaaa aa aaa aeaaea E aaa a Aa Era aE Aaaa 9 RHPS Series See eet WOKE 1 Introdu
15. un 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 The product is designed to be used between 20 C and 80 C whether ambient temperature or media temperature In all other cases consult SWAGELOK B V The regulator is standard not oxygen clean Although all regulators are ultrasonically cleaned this does not make them suitable for oxygen use 2 2 Oxygen service Specification of materials in regulators for oxygen service is the user s responsibility SWAGELOK B V can perform cleaning for Oxygen service based on ASTM G93LevelC CGA4 1 at additional cost RHPS Series eet OWAN 2 3 Installation instructions Verify that the regulator the connections and its accessories are undamaged Verify that the regulator and 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 The standard connection of the LRS H 4 is 72 NPT female To get a proper sealing across the thread SWAGELOK B V recommends using teflon tape Securely make the appropriate connections to the regulator in accordance with the procedures recommended by the manufacturer of the connections
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