The compound exhaust valve body is barrel shaped, and there is a closed ground at the most point of the pipeline to eliminate the body in the pipe and dredge the pipeline to achieve normal operation. If the drain valve is not installed, the liquid flowing in the pipe will produce dynamic heat, cause the body to form a short circuit, and make the pipeline discharge capacity unable to meet the design requirements. Secondly, when the pipeline is in operation, there will be negative pressure in the pipeline, which will cause pipeline vibration or rupture. The exhaust valve will quickly suck the empty pipe into the pipe to prevent the pipeline from vibration or rupture.
The performance of the compound exhaust valve is reliable, which can discharge a large amount of air in the pipeline and a small amount of gas in the system operation to the outside air at high speed. The compound exhaust valve can be easily removed from the system for maintenance, and the water in the system will not flow out, so there is no need to empty the system. Only exhaust, no drainage, steam, moisture off the disk design using a special structure, to ensure that no drainage. As long as the system has pressure, the compound exhaust valve will exhaust continuously.
Flange standard: GB/T17241.6
Test standard: GB/T13927
Nominal diameter: DN50~200mm
Nominal pressure: PN1.0/1.6mpa
Applicable temperature: 0 ~ 80℃
Suitable medium: water, sewage
Main material: ductile iron
DN |
D |
D1 |
H |
N-Φd |
|||
PN10 |
PN16 |
PN10 |
PN16 |
PN10 |
PN16 |
||
50 |
165 |
165 |
125 |
125 |
280 |
4-Φ19 |
4-Φ19 |
80 |
200 |
200 |
160 |
160 |
365 |
8-Φ19 |
8-Φ19 |
100 |
220 |
220 |
180 |
180 |
395 |
8-Φ19 |
8-Φ19 |
150 |
285 |
285 |
240 |
240 |
485 |
8-Φ23 |
8-Φ23 |
200 |
340 |
340 |
295 |
295 |
570 |
8-Φ23 |
12-Φ23 |
250 |
395 |
405 |
350 |
355 |
655 |
12-Φ23 |
12-Φ28 |
300 |
445 |
460 |
400 |
410 |
750 |
12-Φ23 |
12-Φ28 |