Swagelok RHPS Series User Manual
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Summary of Contents for Swagelok RHPS Series
- Page 1 RHPS Series BD(H) 20, 25 (-DP) User Manual Read the complete manual before installing and using the regulator.
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Page 2: Table Of Contents
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 Introduction ............................3 Installation .............................. 5 Operation ..............................8 Maintenance ............................9 Testing .............................. -
Page 3: Introduction
Introduction Representative drawing of the standard BD20, 25-DP body assembly guide ring springguide dome o-ring domescrew bodyplug ring valve case setspring socket head cap screw valve screw o-ring setscrew valve insert pistonplate o-ring piston o-ring o-ring seat retaining ring... - Page 4 Dome loading with differential pressure A differential pressure dome loaded regulator has a set spring inside the dome. The set spring is used to maintain a desired pressure difference between the dome pressure and the outlet pressure. Usually the dome pressure is a reference pressure taken elsewhere out of the system. dome diaphragm plate diaphragm...
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Page 5: Installation
Installation 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. CAUTION Do not use the regulator as a shutoff device. CAUTION... - Page 6 This can be achieved by sensing the outlet pressure downstream of the regulator and feeding it back to the regulator. For this purpose Swagelok has provided a special connection, marked on the regulator itself as "external feedback".
- Page 7 Connecting the external feedback The external feedback must be installed as follows: ▪ The external feedback is to be connected in a turbulence-free zone in the downstream piping, at a maximum distance of 5x the outside diameter of the down stream piping. ▪...
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Page 8: Operation
Operation Note: All directions are when viewed from above. ▪ Inlet and set pressure settings are obtained by adjusting pressure in the dome. ▪ Increase the pressure in the dome to increase the inlet pressure. ▪ Decrease the pressure in the dome to decrease the inlet pressure. ▪... -
Page 9: Maintenance
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. ▪... -
Page 10: Testing
Testing Check the regulator for leakage across the seat, with low- and high inlet pressure. Check the regulator for leakage across the diaphragm, with low- and high outlet pressure. A well performing BD(H)20/BD(H)F25 is 100 % bubble tight. If there is a leakage across the seat or the diaphragm, the damaged parts must be replaced. -
Page 11: Troubleshooting
Troubleshooting Problem: The outlet pressure creeps up, without increasing the dome pressure. 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 or insufficient torque on the body plug. Solution: Replace the o-ring or tighten the bodyplug according to the torque specifications. - Page 12 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 Caution: Do not mix or interchange parts ©...
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