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RHPS Series VBS8 User Manual Read the complete manual before installing and using the regulator.
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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 ..............................4 Operation ..............................5 Maintenance .............................. 6 Testing ...............................
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Introduction Representative drawing of the VBS8 body assembly valve guiding ring set screw spring housing assembly retaining ring spring housing cover ring seal housing ring socket head screw diaphragm plate body plug O-ring diaphragm valve ring O-ring support diaphragm valve O-ring O-ring valve stem O-ring...
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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 regulators as a shutoff device. Connections to System Before connecting to system, verify the regulator is closed by turning the set screw: ▪...
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Operation Note: All handle directions are when viewed from above. Outlet and control pressure settings are obtained by adjusting the set screw. To increase the outlet or control pressure, rotate the set screw clockwise. To decrease the outlet or control pressure, rotate the set screw counterclockwise and vent the downstream side of the regulator.
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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, this to avoid galling of threads. Assembly...
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Recommended torques CAUTION Only tighten the bolts or parts if the regulator is completely depressurized. Body plug 40 N·m (353 in.·lb) Valve assembly socket head screw 10 N·m (88 in.·lb) Nut on the diaphragm screw - M10 10 N·m (88 in.·lb) Socket head cap screws - 16 pcs M06 10 N·m (88 in.·lb) Spring housing cover...
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