adjustable pressure sustaining valve

adjustable pressure sustaining valve

The adjustable pressure sustaining valve shall be a globe pattern, diaphragm actuated valve, which throttles flow through the valve to maintain a minimum upstream pressure regardless of changes in demand downstream.

The adjustable pressure sustaining valve is utilized within an Inline Balanced Pressure (ILBP) Proportioning Pump system to automatically maintain a preset foam concentrate discharge pressure to the remotely installed ILBP Module(s). The valve modulates to maintain a minimum upstream pressure regardless of changes in demand downstream.  Modulation of the main valve is controlled by a pilot valve, which senses upstream pressure. The pilot valve reacts immediately to changes in upstream pressure and in turn causes repositioning of the main valve spool to sustain the desired preset upstream pressure.

Adjustable pressure sustaining valve is used wherever a specific inlet pressure must not be exceeded, for example limiting the pressure in the inlet supply network or in transition links between supply networks and high demand large users. Their compact construction makes them ideally suited for applications where space is limited, for example in ducts. They can be used for commercial or industrial applications within the scope of their specification.