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Water membrane valve

Products > Hydraulic control valve > Water membrane valve

Water membrane valve

Model: YD43H
Nominal diameter: DN15 ~ 500mm
Nominal pressure: PN1.6 ~ 16MPa
Main material: WCB, 2Cr13,2Cr13 / 25 (hard chrome plating), 2Cr13 / copper alloy
Temperature: 0 ~ 80 ℃
Operation: manual
Flange standard: GB / T17241.6, GB / T9113
Test standards: GB / T13927, API598
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product description 

The pressure reducing valve is mainly used for steam pipe, from the role of decompression regulator. Pilot-dependent valve. The main valve and pilot valve composed of two parts. The main valve from the valve seat, the main valve disk, piston, spring and other components. Pilot valve mainly by the valve seat, disc, diaphragm, spring, adjusting spring and other components. This product has been greatly improved on the basis of ordinary pressure reducing valve, increasing the piston area and changing the throttling structure. Change the seal form, increase the over-current area, etc., which greatly improve the performance in terms of improving sensitivity, flow, life and so on. This product is mainly used for steam pipe, suitable for large flow rate changes, large changes in the inlet pressure of the steam pipeline.


 The main technical parameters and performance indicators 

Nominal pressure (Mpa)

1.6

2.5

4.0

6.4

10.0

16.0

Shell test pressure (Mpa)

2.4

3.75

6.0

9.6

15.0

twenty four

Seal test pressure (Mpa)

1.6

2.5

4.0

6.4

10.0

16.0

The maximum inlet pressure (Mpa)

1.6

2.5

4.0

6.4

10.0

16.0

Outlet pressure range (Mpa)

0.1-1.0

0.1-1.6

0.1-2.5

0.5-3.5

0.5-3.5

0.5-4.5

Pressure characteristic deviation (Mpa) △ P2P

GB12246-1989

Flow characteristics deviation (Mpa) P2G

GB12246-1989

Minimum pressure difference (Mpa)

0.15

0.15

0.2

0.4

0.8

1.0

Leakage

GB12245-1989

Shell test does not include diaphragm, top cover.


 The main dimensions

DNLH1HD
15147235145207
20154235145207
25160235145207
32180250160220
4016250160220
50230270180220