Diaphragm pressure reducing valve

Technical Parameter

Item model number: Y42X

Nominal diameter: DN15~500mm

Nominal pressure: PN1.0~2.5MPa

Working temperature: 0℃-80℃

Main material: WCB, 2Cr13, 2Cr13/25 (hard chrome plating), 2Cr13/copper alloy

Drive mode: manual

Flange standard: GB/T17241.6, GB/T9113

Test standard: GB/T13927, API598


Product Detail

Product Description

The diaphragm type pressure reducing valve is mainly composed of adjusting spring, diaphragm, piston, valve seat, valve disc and other parts. The diaphragm is used to directly sense the downstream pressure to drive the valve disc, and the opening of the valve disc is controlled to complete the decompression and voltage regulation function. This product can replace conventional partitioned water pipes in the cold and hot water supply systems of urban buildings and high-rise buildings, saving equipment. It can also play the role of decompression and voltage regulation in the usual cold and hot water pipe network. This product has stable pressure regulation and voltage regulation, and is suitable for pipelines with water and non-corrosive liquid media.


The Main Technical Parameters

PN(Mpa)1.01.62.5
shell test pressure(Mpa)*1.52.43.75
Seal test pressure(Mpa)1.01.62.5
Maximum inlet pressure(Mpa)1.01.62.5
Outlet pressure range(Mpa)0.2-0.80.2-1.00.4-1.6
Pressure characteristic deviation(Mpa)△P2PGB12244-1989
Flow characteristic deviation(Mpa)P2GGB12244-1989
Leakage0
Operating temperature0℃-80℃

*: Shell test does not include diaphragm, bonnet


Main External Connection Dimensions

DNDimensions
LHH1
15160265100
20160265100
25180285110
32200285110
40220320120
50250320120
65280335140
80310425165
100350445185
125400590225
150450625260
200500680280
250650855335
300800935385
3508501015430
4009001095455
4509001165500
5009501205525