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Compound exhaust valve

Product Overview

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.

Structural characteristics

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.

Execution standard

Flange standard: GB/T17241.6
Test standard: GB/T13927

Performance parameter

Nominal diameter: DN50~200mm
Nominal pressure: PN1.0/1.6mpa
Applicable temperature: 0 ~ 80℃
Suitable medium: water, sewage
Main material: ductile iron

Product Dimensions

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

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