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Pressure Relief & Sustaining Valve
Pressure Relief & Sustaining Valve is a hydraulically operated, diaphragm actuated control valve that can fulfill either of two separate functions. When installed in-line, it sustains minimum pre-set, upstream (back) pressure regardless of fluctuating flow or varying downstream pressure.
Pressure Sustaining Valves serve the purpose of maintaining pressure in a fluid circuit by opening only as much as required to maintain the required pressure on their inlet port.
Pressure relief valve serve the purpose of releasing the high pressure in front of the valve that exceeds the set pressure of the valve out of the system pipeline, so as to prevent the high pressure or sudden pressure in the pipeline from damaging the pipeline and equipment in front of the valve.
Construction
Parts | Material |
Body | Ductile Iron |
Valve Cover | Ductile Iron |
Valve Seat | Stainless Steel AISI 304 |
Disc Guide | Stainless Steel AISI 304 |
Disc Gasket | EPDM |
Valve Disc | Ductile Iron |
Diaphragm | EPDM+ Nylon |
Strainer | Stainless Steel AISI 304 |
Needle | Stainless Steel AISI 304 |
Spring | Stainless Steel AISI 304 |
Pilot- Relief Valve | Stainless Steel AISI 304 |
Description
Quick opening and adjustable closing speed.
Operates over a wide flow range.
In-line serviceable – Easy maintenance.
Range from DN50 up to DN300.
Epoxy paint 200 microns min: RAL 3000.
Standards
Flanged: EN1092-2, ASME B16.1 Class 125
Grooved: AWWA C606
Inlet Pressure Rating: 65-180 psi
Working Temperature: 0 ℃ - 80 ℃
Available
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RAL 3000 | RAL 5017 |
Suitabilities
Water Fire Fighting
