AD Direct acting pressure reducing valveDetailed product description：

AD direct acting pressure reducing valve

Product Introduction:
AD direct acting pressure reducing valve is a direct acting thin film spring pressure reducing valve designed and manufactured based on the advantages of similar foreign products. It is mainly composed of components such as diaphragm, Deng shaped valve disc, and regulating spring. Using diaphragm sensing to drive valve disc and change and control valve opening to achieve pressure reduction and stabilization function. Set the outlet pressure value by adjusting the spring pressure.   
The AD direct acting pressure reducing valve appropriately increases the diaphragm area and improves sensitivity. Smooth and sensitive pressure reduction and stabilization. Suitable for the use of branch pipelines in high-rise apartment buildings and residential areas, as well as household branch pipelines in apartments and residences.

Main technical parameters and performance indicators:

Nominal pressure (Mpa)	one	one point six
Shell test pressure (Mpa)*	one point five	two point four
Sealing test pressure (Mpa)	one	one point six
Maximum import pressure (Mpa)	one	one point six
Export 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
leakage volume	0
Operating Temperature	0℃-80℃
*Shell test does not include diaphragm and valve cover.

Main component materials:

Part Name	Part material
valve body	Copper alloy
valve cover	Copper alloy
valve disc	Copper alloy
O-ring	Nitrile rubber
Seal ring	Nitrile rubber
Diaphragm	Nitrile rubber sandwiched fabric
Adjusting spring	60Si2Mn
Adjusting bolt	2Cr13

Flow coefficient (Cv):

DN	15(1/2")	20(3/4")	25(1")	32(1-1/4")	40(1-1/2")	50(2")
Cv	one	two	three	five	eight	fourteen

Main external dimensions:

DN	G	L	H		H
			P2*≤0.55MPa	P2*≤0.8MPa
15(1/2")	G1/2"	sixty-five	seventy-five	ninety	thirty-five
20(3/4")	G3-4"	seventy-five	eighty-five	one hundred	thirty-five
25(1")	G1"	ninety	three	one hundred and fifteen	forty-six
32(1-1/4")	G1-1/4"	one hundred and five	one hundred and thirty	one hundred and fifty	fifty-five
40(1-1/2")	G1-1/2"	one hundred and twenty	one hundred and fifty-five	one hundred and seventy-five	sixty-five
50(2")	G2"	one hundred and forty	one hundred and seventy-five	one hundred and ninety-five	seventy-five
*P2 represents the outlet pressure