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Summary of Contents for Swagelok LBS4
- Page 1 LBS4 Back-Pressure Regulator User Manual Read the complete manual before installing and using the regulator.
- Page 2 Safe Product Selection When selecting a product, the total system design must be considered to ensure safe, trouble-free performance. Function, material compatibility, adequate ratings, proper installation, operation, and maintenance are the responsibilities of the system designer and user. WARNING • Users must be trained and equipped for the handling, use, and servicing of pressure products and systems.
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Page 3: Table Of Contents
Contents Introduction ................................ 4 Overview................................4 Standard Features ............................4 Additional Options ............................4 Oxygen Service ............................... 4 Installation ................................5 Points of Attention Before Installation ......................5 Installation ............................... 5 Operation ................................6 Required Tools for Operation .......................... 6 Points of Attention Before Operation ....................... -
Page 4: Introduction
Introduction Overview The LBS4 series are spring loaded back pressure regulators designed for high sensitivity regulation of gases and liquids. For pressure and temperature rating information refer to the Pressure Regulators, RHPS Series catalog, MS-02-430. WARNING Check that system pressures and temperatures do not exceed those stated on the regulator as this could result in product failure. -
Page 5: Installation
Installation CAUTION Do not use the regulator as a shutoff device. A level of leakage across the regulator seat can occur during normal operation. Points of Attention Before Installation This regulator can be equipped with a variety of different options and connections. Before installing the regulator you should fully understand the functions of the supplied options and the suitability of your particular regulator for the intended application. -
Page 6: Operation
9. When in operation make any final set pressure adjustments if required. NOTICE The LBS4 series knob assembly is retained by a C-ring. When backing off the knob do not attempt to continue to unwind the knob once it has stopped. Doing so may damage the C-ring. -
Page 7: Maintenance
To reduce maintenance related system downtime to a minimum, either during commissioning or normal operation, Swagelok recommends having maintenance kits readily available on site. The need for maintenance kits is particularly important during the commissioning phase of a system installation due to residual assembly debris remaining in the system. -
Page 8: Points Of Attention Before Removal From The System
Points of Attention Before Removal from the System Swagelok recommends removing the regulator from the system for servicing and maintenance. Follow all local system safety and maintenance procedures when removing the regulator. WARNING Before removing a regulator from the system, to avoid personal injury, you must: •... -
Page 9: Assembly Reference Data
Assembly Reference Data Torque Recommended Lubrication Component Name Kit Type(s) Item (included in kit per Table 1) lbf·ft (N·m) Body Seat A1, B1, C1 Seat O-Ring A1, B1, B2, C1 Seat retainer 11 (15) Lubricate threads Poppet A1, A2, B1, C1 7 (10) Lubricate threads Diaphragm... - Page 10 LBS4 Series, Exploded View Fig 1...
- Page 11 LBS4 Series, Section View Fig 2...
- Page 12 Elastomer Diaphragm Configuration; Control Ranges 1 and 2 Fig 3 Elastomer Diaphragm Configuration; Control Range 3 Fig 4 Metal Diaphragm Configuration; Control Ranges 1 and 2 Fig 5...
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Page 13: Disassembly
All parts must remain clean and undamaged before starting assembly. Maintenance kit components will be supplied preassembled where practicable to aid reassembly. Swagelok recommends replacing all O-rings removed during disassembly. NOTICE All threaded components must be lightly lubricated per Table 2 before reassembly to avoid galling of threads. -
Page 14: Testing
Testing Swagelok recommends that the regulator be tested for seat and shell leakage to atmosphere. A well performing regulator will not show any indication of leaking. If any evidence of a leak is identified this must be rectified. Any damaged components must be replaced. -
Page 15: Troubleshooting
Troubleshooting Symptom Cause Remedy Constant leakage from the outlet before the set pressure is A damaged seat and/or poppet. Replace the seat and/or poppet. reached. A damaged diaphragm. Replace the diaphragm. Leakage between the body and Insufficient torque on the spring the spring housing. - Page 16 Warranty Information Swagelok products are backed by The Swagelok Limited Lifetime Warranty. For a copy, visit swagelok.com or contact your authorized Swagelok representative. Swagelok, Snoop - TM Swagelok Company Loctite — TM Henkel Corp. Krytox – TM The Chemours Company ©...
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