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Home > Products > Pressure reducing valve > Piston type pressure reducing valveAD

Description Material Performance Product Size Specifications

Series of pressure relief valve is a direct acting diaphragm spring pressure relief valve, which is based on the advantages of similar products abroad, the design and manufacture of. Mainly by the diaphragm, step disc, springs and other parts adjust. Using the diaphragm sensing downstream pressure change valve, change and control valve opening to achieve the function of reducing pressure. By adjusting the spring pressure to set the outlet pressure value.
The product is suitable for increasing the area of the diaphragm, and improve the sensitivity. Pressure relief stable, sensitive. Branch line is suitable for high-rise apartment buildings and residential and residential apartments, home use branch.
Note: parameters are for reference only, or are not full. Valve can be used in accordance with the requirements of different pressure, material, diameter, drive, etc.. Specific please contact or online advisory contact

Part name	Part material
valve body	Copper alloy
Valve cover	Copper alloy
Valve	Copper alloy
O type circle	Nitrile rubber
Seal ring	Nitrile rubber
diaphragm	Clip fabric nitrile rubber
Regulating spring	60Si2Mn
Adjusting bolt	2Cr13

Nominal pressure(Mpa)	1.0	1.6
Shell test pressure(Mpa)*	1.5	2.4
Seal test pressure(Mpa)	1.0	1.6
pressure(Mpa)	1.0	1.6
Outlet pressure range(Mpa)	0.05-0.55	0.05-0.8
Pressure characteristic deviation(Mpa)△P2P	GB12244-1989
Flow characteristic deviation(Mpa)△P2G	GB12244-1989
Seepage quantity	0
working temperature	0℃-80℃
*：The shell test does not include the diaphragm and the valve cover.。

DN	15(1/2")	20(3/4")	25(1")	32(1-1/4")	40(1-1/2")	50(2")
Cv	1	2	3	5	8	14

DN	G	L	H		H
DN	G	L	P2*≤0.55MPa	P2*≤0.8MPa	H
15(1/2")	G1/2"	65	75	90	35
20(3/4")	G3-4"	75	85	100	35
25(1")	G1"	90	3	115	46
32(1-1/4")	G1-1/4"	105	130	150	55
40(1-1/2")	G1-1/2"	120	155	175	65
50(2")	G2"	140	175	195	75
*：P2Express export pressure

DN	G	L	H		H
DN	G	L	P2*≤0.55MPa	P2*≤0.8MPa	H
15(1/2")	G1/2"	65	75	90	35
20(3/4")	G3-4"	75	85	100	35
25(1")	G1"	90	3	115	46
32(1-1/4")	G1-1/4"	105	130	150	55
40(1-1/2")	G1-1/2"	120	155	175	65
50(2")	G2"	140	175	195	75
*：P2Express export pressure

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