饥渴的熟妇张开腿呻吟视频_欧美老熟妇做受视频在线_亚洲综合爱爱_dy888午夜国产午夜精品_亚洲肥婆综合色区在线播放_蜜桃精品视频亚州激情_乱辈通轩系列小说_特节久久香蕉国产线看观看_色热热福利导航_欧美破苞系列二十三

Water membrane pressure reducing valve

Products > Hydraulic control valve > Water membrane pressure reducing valve

Water membrane pressure reducing valve

Model: YD43H
Nominal diameter: DN15 ~ 500mm
Nominal: 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 standard: GB/T13927, API598
shared:

product description 

       The pressure reducing valve is mainly used for the steam pipeline and functions as a pressure reducing regulator. It is a pilot piston type pressure reducing valve. It consists of two parts: the main valve and the pilot valve. The main valve is mainly composed of a valve seat, a main valve disc, a piston, a spring and the like. The pilot valve is mainly composed of a valve seat, a valve disc, a diaphragm, a spring, an adjustment spring and the like. This product has been greatly improved on the basis of the ordinary pressure reducing valve, which has increased the piston area and changed the throttling structure. The sealing form has been changed, the flow area has been increased, and the like, thereby greatly improving the performance in terms of sensitivity, flow rate, and life. This product is mainly used in steam pipelines, and is suitable for steam pipelines with large flow and large flow changes and large inlet pressure changes.


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

Maximum import pressure (Mpa)

1.6

2.5

4.0

6.4

10.0

16.0

Export 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 characteristic deviation (Mpa) P2G

GB12246-1989

Minimum differential pressure (Mpa)

0.15

0.15

0.2

0.4

0.8

1.0

Leakage

GB12245-1989

The shell test does not include the diaphragm or the top cover.


Main dimensions

DNLH1HD
15147235145207
20154235145207
25160235145207
32180250160220
4016250160220
50230270180220