
Back Pressure Control valve
Back Pressure Valve can be used in any installation where upstream pressure is required to be kept at a preset range. It may also be used as: a pressure relief valve, a custody transfer dump valve to hold a certain back pressure, or as a separator back pressure valve on the gas or liquid side. Upstream pressure is applied to the bottom of the diaphragm through connecting tubing. Spring tension above the diaphragm opposes this pressure, and when the pressure exceeds the pressure setting on the spring, the plug is raised off the seat. By varying the spring tension, the pressure setting can be varied.
The typical application for these valves is to hold back pressure on separators, treaters, Lact units, etc.
Types of Back pressure Valves
3535 Diaphragm Operated Back Pressure Valve, Low Pressure
5555 Back Pressure Valve, Double Seated (Balanced)
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