国产∨亚洲v天堂无码久久久-免费毛片看-国产成人综合av-国产成人av在线婷婷不卡九色-日本黄网站免费-成人18视频-欧美日日摸夜夜添夜夜添-日韩精品一卡2卡3卡4卡乱码的功能-亚洲精品无码专区久久久-中文字幕无码不卡免费视频-精品免费国产-成人免费在线影院-亚洲午夜在线-亚洲aⅴ在线无码天堂777-亚欧乱色-www,xxx日本-尤物yw午夜国产精品视频-麻豆国产一区二区三区-国产午夜性爽视频男人的天堂-久久论理

Pneumatic emergency shut-off valve

Products > Globe valve > Pneumatic emergency shut-off valve

Pneumatic emergency shut-off valve

Model: QDQ421F-25/40
Nominal diameter: DN25∽200mm
Nominal pressure: PN2.5 ~ 4.0MPa, JIS-10K , 20K
Temperature: -40∽ + 80 ℃
Medium: liquefied petroleum gas, natural
Gas source interface: PC1 / 4
High temperature dissolution temperature: 70 ± 5 ℃
Contact purchase
shared:

Features:

  This is a safety protection valve installed in liquid and gas pipeline LPG storage and drainage stations, and air compressor (or gas tank) supporting the use of a large number of leaks in the pipeline, the gas pressure relief or high temperature Fusible alloy melts, the valve automatically stop leak, play a safety role in this valve can also be used as a pneumatic valve. Can achieve long-distance control, close quickly, open and flexible. 


 Performance Specifications: 

Nominal pressure PN

2.5, 4.0 MPa

Cylinder pressure

≤4.0MPa

Suitable temperature T

-40 ∽ +80 ℃

Cylinder use medium


Suitable media

LPG, natural gas

Fused temperature

70 ℃ ∽ ± 5 ℃

Closing time

≤10 seconds

Cylinder opening pressure

≥4.0MPa


 Main dimensions and connection dimensions:  Unit: mm

DN

L

H

H1

D

D1

D2

b

f

Z-φd

25

160

230

230

115

85

65

16

2

4-14

32

180

240

240

135

100

78

18

2

4-18

40

200

250

250

145

110

85

18

3

4-18

50

230

270

270

160

125

100

20

3

4-18

80

310

320

320

195

160

135

22

3

8-18

100

350

360

360

230

190

160

24

3

8-23

150

480

510

510

300

250

218

30

3

8-25

200

600

550

550

360

310

278

30

4

12-25