Pressure Sustaining Valve + Non Return

Cla-Val Models 51GE-01/NGE51-01 Pressure sustaining valves are hydraulically operated, pilot-controlled, modulating valve designed to maintain constant upstream pressure within close limits. This valve can be used for pressure relief, pressure sustaining, back pressure, or unloading functions in a by-pass system. In operation, the valve is actuated by line pressure through a pilot control system, opening fast to maintain steady line pressure but closing gradually to prevent surges. Operation is completely automatic and pressure settings may be easily changed. If a pressure reversal occurs, the downstream pressure is admitted in the main valve cover chamber closing the valve to prevent return flow.
 
Sizes: 1½” –DN1200
Upstream adj. range: 0-5 bar, 1.4 –14 bar, 7-21 bar
End Connections: Screwed (2” Max) or Flanged
Pressure rating: 16bar, 25bar, 40bar (BS4504)
51-01 pressure sustaining valve request quote
Pressure Sustaining + Non Return
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