RHPS Series RS 4,6,8 User Manual
Contents
1. o ring 18 diaphragm 4 o ring 21 ring 9 valve stem 19 o ring 7 bodyplug 22 socket head cap screw 11 seat 20 o ring 8 o ring 23 ball 12 spring guide 21 ring 9 valve 24 o ring 13 set spring 22 socket head cap screw 11 seat 25 back up ring 14 valve spring 23 ball 12 spring guide 27 o ring 24 valve case 13 set spring 28 cover 14 valve spring Only available through authorized Swagelok sales and service representatives Representative drawing of the standard LPRS4 6 8 1 body 11 seat 21 o ring 2 springhousing assembly 12 spring guide 22 nut 3 o ring 13 set spring 23 socket head cap screw 4 back up ring 14 valve spring 24 ball 5 cover 15 diaphragm screw 26 o ring 6 bottom cover 16 diaphragm plate 27 nut 7 bodyplug 17 knob assembly 30 suctiontube 8 o ring 18 diaphragm 9 valve case 19 o ring 10 valve stem 20 o ring Only available through authorized Swagelok sales and service representatives Installation J WARNING When installing a Swagelok self venting regulator position the vent connection or line away from operating personnel Operating personnel must protect themselves from exposure to system fluids Ms CAUTION Do not use the regulators as a shutoff device Connections to System Before connecting to system verify the regulator is closed by t2. available Problem The outlet pressure does not drop if the adjustment knob is turned counterclockwise Cause The regulator is non venting Solution A shut off valve in the outlet line 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 For additional information see www swagelok com Swagelok Snoop Swagelok Company 2010 Swagelok Company December 2010 RO Arough authorized ee Swagelok sales and service representatives Caution Do not mix or interchange parts with those of other manufacturers
3. RHPS Series OWAN LP RS H 4 6 8 User Manual Read the complete manual before installing and using the regulator Only available through authorized Swagelok sales and service representatives N WARNING Before removing a regulator from the system for service you must depressurize system purge the system to remove any residual system media left in the regulator Contents WNMFOGUICTION aE EEEE EEEE E 3 Installation cccccsccccccesecectiectcctcncc cece nevsnteecece cccncavesececncceeccheudy ccneue eeestuadde aranana nariadi rei araa naiaiae raaua sarina 5 0o aei ol a ME PTT cay scousscecesescaesedeerecuacersndee sonssataedsaceatstcesatensenteesszceescunrse 6 M j Ne NAH CCS ara aae aa parae ra raaa aae aaar a a rA Aae aa TAa a Aaaa aAA sdetasctenntascteqeatssatanaiscatacns tatstaestacstenatzsiatacuisess 7 TO SHING Me E E E EE E E E E 7 Troubleshooting issecesncess see sccset ac ecsssecteedesed uae da sscensed sev td owosecensseuecvansavauueessauavssbbar seucbesaueusensasouesucny avsanusuaiee 8 Only available through authorized Swagelok sales and service representatives Introduction Representative drawing of the standard RS H 4 6 8 ANTI TAMPER lt FLOW DIAPHRAGM SENSING PISTON SENSING 1 body 15 diaphragm plate 1 body 15 piston plate 2 springhousing 16 bottom springguide 2 springhousing 16 piston 7 bodyplug 17 knob assembly 3 o ring 20 o ring 8
4. r Disassembly instructions Loosen the hexagon socket head screws and remove the spring housing spring and bottom spring guide Also remove the diaphragm and diaphragm plate or piston and piston plate Loosen the bodyplug and remove the valve valve spring seat and filter element Inspection of disassembled parts Check all parts for abnormal wear Replace parts in case of doubt Points of attention before assembly All parts must be clean and undamaged before starting assembly Swagelok recommends replacing all o rings and the diaphragm before assembly All threaded parts must be lightly lubricated before assembly to avoid galling of threads All o rings need to be lightly lubricated to improve the lifetime of the o ring and the performance of the regulator Assembly instructions Follow the points for disassembly in reverse order to assemble the regulator Recommended torques N CAUTION Only tighten the bolts or parts if the regulator is completely depressurized Hexagon socket head screws M6 10 N m 88 5 in Ib Hexagon socket head screws M8 25 N m 221 in Ib Bodyplug 20 N m 177 in Ib Testing Check the regulator for leakage across the seat with low and high inlet pressure Check the regulator for leakage across the diaphragm piston with low and high outlet pressure Check the required outlet pressure range A well performing RS H 4 6 8 is 100 bubble tight Ofity ava APEEP PIETET Ori Zeg
5. r and system protection If the shut off valve at the outlet 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 or supply pressure effect and does not indicate a problem with the regulator Only available through authorized Swagelok sales and service representatives Maintenance 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 LPRS version a torque wrench hexagon head key 6 a torque wrench open end insert tool 25 mm an open end wrench 17 mm LPRS version media and temperature compatible lubricant for reassembling threaded parts media and temperature compatible lubricant for o rings K Snoop liquid leak detecto
6. reac Swagelok sales and service representatives Troubleshooting Problem The outlet pressure creeps up without turning the adjustment knob Cause A damaged valve and or seat Solution Replace the valve and or the seat Problem Leakage around the bodyplug Cause A damaged o ring back up ring or insufficient torque on the body plug Solution Replace the o ring back up ring or tighten the bodyplug according to the torque specifications Problem Leakage between the body and the spring housing or through the relief hole at the side of the spring housing Cause A damaged diaphragm piston o ring or insufficient torque on the bolts Solution Replace the diaphragm piston o ring or tighten the bolts according to the torque specifications Problem Controlled pressure drops off sharply even when the flow is within regulator capabilities Cause The regulator filter element or system filter element is clogged Solution Replace the filter element 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 A larger regulator is required Check the specific application data with the flow curves in our product literature if
7. urning the handle or adjusting screw Counterclockwise when viewed from above until it stops for pressure reducing regulators Clockwise when viewed from above until it stops for back pressure regulators The preferred mounting position of the regulator is horizontal with the spring housing facing upwards The standard connection of the RS H 4 6 8 is bspp parallel female To get a proper sealing across the thread Swagelok recommends using bonded seal rings If grounding is required connect a ground wire under a spring housing bolt Only available through authorized Swagelok sales and service representatives Operation Note All handle directions are when viewed from above Outlet and control pressure settings are obtained by adjusting the handle or adjusting screw To increase the outlet or control pressure rotate the handle clockwise To decrease the outlet or control pressure rotate the handle counter clockwise and vent the downstream side of the regulator Make the final setting in the direction of increasing pressure to obtain the most accurate set points Once fluid is flowing through the system fine tuning may be required Icing of the regulator at high flow rates or high pressure drops may occur if the gaseous media or atmosphere contains moisture An auxiliary upstream filter is recommended for use in all but the cleanest of media Installation of a downstream pressure relief is recommended for regulato
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