QDQ421F-25/40 Pneumatic Emergency Shut-off Valve
Product overview
Product model: QDQ421F-25/40
Nominal diameter: DN25∽200mm
Nominal pressure: PN2.5~4.0MPa, JIS-10K, 20K
Applicable temperature: -40∽+80℃
Applicable medium: liquefied gas, natural gas
Air source interface: PC1/4
High temperature solution-closing temperature: 70±5℃
QDQ421F-25/40 Pneumatic Emergency Shut-off Valve features:
QDQ421F-25/40 Pneumatic Emergency Shut-off Valve produced and sold by Baigang valve group is a kind of safety protection valve.It is installed on the liquid phase and gas phase pipeline of liquefied petroleum gas storage and irrigation station and used with air compressor (or gas storage tank), so that when a large amount of pipeline leakage occurs, pressure relief of air source or high temperature will melt the fusible plug alloy, and the valve will automatically close and stop leakage, playing a role of safety protection.This valve can also be used as a pneumatic globe valve.It can realize remote control, close quickly and open flexibly.
QDQ421F-25/40 Pneumatic Emergency Shut-off Valve 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 |
QDQ421F-25/40 Pneumatic Emergency Shut-off Valve 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 |
Reminder:
All text, data and pictures in this article are for reference only.To see more details of the QDQ421F-25/40 Pneumatic Emergency Shut-off Valve performance parameters, structural dimension parameters, pricing, etc., or to request high quality printing samples, please Contact us.
Headquarters Tel: +86-021-57278880
Sales Tel: +86-021-57278881
Fax: +86-021-57278882
E-mail: baigangvalve@163.com
Site: www.020gzcl.com.cn
Add: Tinglin Industrial Park, Jinshan District, Shanghai
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