This kind valve uses the pressure difference caused by different sectional areas of the two ends of piston inside vlave body to change the back pressure of valve for pressure reduction.
The ratios of proportional pressure reducing valves are respectively 2: 1, 3: 1, 4: 1, 4: 2, 5: 2, etc. We also provide pressure reducing valves of special ratios according to users' requirement.
Suitable Medium
Water, Oil, Gas etc.
Main material
CAST IRON,ASTM A216 WCB, WCC, WC6, SS304, SS316, CF8, ETC.
Suitable Temperature
≤80ºC
Nominal Pressure
PN10--PN25
Nominal Diameter
DN50--DN800
Flange Dimension
ASME B16.5, BS4504, ISO2531, ISO7005 and other standards conforming to the requirements
Face to Face Length
API594,BS5155, ISO5752, DIN3352 and other standards conforming to the requirements
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Fixed Proportional Pressure Reducing Valve (04)
Model NO.: 04
Certificate: ISO,Ce
Trademark: GUANFA
Transport Package: 1.Inner:Plastic Package 2.Outer: Plywood Case
Specification: ISO9001 API
Origin: China
Fixed proportional pressure reducing valves are featured by simple structure, elegant profile, dependable quality, accurate proportion, steady operation, and reduction of both dynamic and static pressure.