Swagelok RHPS Series User Manual
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Summary of Contents for Swagelok RHPS Series
- Page 1 LPRD20- 40 USER MANUAL Read the complete manual before installing and using the regulator. LPRD20, 40 User Manual Rev.date: 20-09-2010...
- Page 2 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.
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Page 3: Table Of Contents
CONTENTS Introduction ............................. 1 Detailed description ........................1 Special features and options ......................1 Typical picture of a standard LPRD25 and its components ............2 Installation ............................3 Points of attention before installation .................... -
Page 4: Introduction
1 Introduction Detailed description This regulator is a diaphragm sensing dome loaded pressure regulator, designed for low pressure, high flow gases. The regulator comprises a body and dome welded together and has a removable seat and valve. The product is designed to be used between -20 °C and +80 °C, whether ambient temperature or media temperature. -
Page 5: Typical Picture Of A Standard Lprd25 And Its Components
Typical picture of a standard LPRD25 and its components body assembly guide ring o-ring dome cover retaining ring ring bodyplug valve spring valve case o-ring socket head cap screw valve screw diaphragm ring push rod valve insert bodyplate guide bush diaphragmplate o-ring diaphragm screw... -
Page 6: Installation
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. SWAGELOK B.V. recommends not to use a self-venting version pilot regulator with hazardous or toxic media. -
Page 7: Filling The Dome
Filling the dome The dome can be filled using manual or electronic/pneumatic loading. Manual loading: This can be done by taking the gas pressure from the system and feeding this through a spring loaded pilot regulator into the dome. This is shown in sketch A. In liquid systems the gas pressure for manual dome loading can be taken from a cylinder or mains. -
Page 8: External Feedback
External feedback When using the regulator with external feedback, make sure that the outlet pressure can be 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. -
Page 9: 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. SWAGELOK B.V. recommends not to use a self-venting version pilot regulator with hazardous or toxic media. -
Page 10: Changing The Set Pressure
Changing the set pressure Check the supply of medium at the inlet side. * When using the LPRD20, 25, 30 or LPRD40 with an inlet pressure higher than 2 bar, a safety valve must be installed in the outlet line, because the outlet pressure may not exceed 2 bar. -
Page 11: Maintenance
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 products must pass rigid acceptance tests before leaving the factory. -
Page 12: Points Of Attention Before Removal From The System
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. -
Page 13: Recommended Torques
Recommended torques Only tighten the bolts or parts if the regulator is completely pressure less. Hexagon socket head screws M12 (bodyplug) 50 Nm (LPRD30&40 only) Bodyplug 50 Nm (LPRD20&25 only) Dome cover screws M6 15 Nm Testing Check the regulator for leakage across the seat, with low- and high inlet pressure. Check the regulator for leakage across the connectors and plugs, with low- and high inlet pressure. -
Page 14: Trouble Shooting
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. LPRD20, 40 User Manual Rev.date: 20-09-2010...
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