Swagelok RHPS Series User Manual
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Summary of Contents for Swagelok RHPS Series
- Page 1 RHPS Series LPRD4,6,8 -DP User Manual Read the complete manual before installing and using the regulator.
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Page 2: Table Of Contents
Contents Introduction ............................... 3 Installation ..............................4 Operation ..............................5 Maintenance .............................. 6 Troubleshooting ............................9... -
Page 3: Introduction
Introduction Representative drawing of the standard LPRD4,6,8 -A-DP and its components Body assembly Set spring Ball Poppet balancing O-ring Poppet spring Fitting O-ring Poppet balancing back-up ring Diaphragm screw Spring housing O-ring Anti-tamper cap Diaphragm plate Seal ring Anti-tamper cap O-ring Set screw Spring guide O-ring Body plug... -
Page 4: Installation
An upstream filter is recommended for use in all but the cleanest of media. The standard connection of the LPRD4,6,8 DP is bspp parallel female. To get a proper sealing across the thread, Swagelok recommends using bonded seal rings. If grounding is required, connect the ground wire under a top cover bolt. -
Page 5: Operation
Operation Points of attention before operation CAUTION Do not use the regulators as a shutoff device. A decrease in the inlet pressure will result in a rise of the outlet pressure. This phenomenon is usually referred to as the “dependency” and does not indicate a problem with the regulator. ... -
Page 6: Maintenance
Maintenance WARNING Before servicing any installed regulator you must depressurize the system and dome cycle the regulator purge the regulator CAUTION Only tighten the bolts or components when the regulator is depressurized. Required tools for maintenance a vice to fasten the regulator ... - Page 7 Removal from the system Isolate the regulator from all pressure sources by closing the appropriate valves in the system. Turn the adjustment knob/setscrew counterclockwise to decrease the set pressure. Make sure that the inlet and outlet pressure are both reduced to zero. ...
- Page 8 Recommended torques CAUTION Only tighten the bolts or parts if the regulator is completely depressurized. Hexagon socket head screws M6 10 N·m (88 in.·lb) Spring housing 100 N·m (885 in.·lb) Body plug 20 N·m (177 in.·lb) Fitting (dome connection) 20 N·m (177 in.·lb)
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Page 9: Troubleshooting
Troubleshooting Problem: Leakage around the body plug. Cause: A damaged O-ring or back-up ring or both. Solution: Replace the O-ring or back-up ring or both. Tighten the body plug according to the recommended torque. Problem: The outlet pressure slowly increases, without increasing the dome pressure. Cause: A damaged valve or seat or both. - Page 10 Open a downstream shutoff valve to reduce the outlet pressure. 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. WARNING: Do not mix/interchange Swagelok products or components not governed by industrial design standards, including Swagelok, Snoop –...
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