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China Supplier Factory Cast Iron Double Port Compound Exhaust Valve 2''-12'' for Efficient Water Control
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Product Details
This valve is installed at pump outlets or along water distribution pipelines to automatically release accumulated air, improving pipeline and pump efficiency. During normal operation, it continuously discharges small amounts of trapped air, ensuring safe and stable pipeline performance.
Key Features
⚡
Can eliminate the gas in the pipe, reduce drag and save energy.
🛡
When the pipe is under pressure, the product can automatically inhale air to prevent the pipe from bursting.
⭐
Floating ball is stainless steel, long service life, safe and reliable.
Functions
- 1 Evacuation of air at a high flow rate when pipelines are being filled.
- 2 Intake of air at a high flow rate when pipelines are being drained (protection of the network against pressure drops in the pipelines in case of a main break).
- 3 Degassing at a low flow rate during normal operation.
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Specification
Parts & Materials
NO |
PART NAME |
MATERIAL |
1 |
Body |
Cast iron |
2 |
Bucket |
Cast iron |
3 |
Ball float |
ABS |
4 |
Gasket |
NBR |
5 |
Inside cover |
Cast iron |
6 |
Bolt |
Carbon steel |
7 |
Outside cover |
Cast iron |
8 |
Bolt |
Carbon steel |
Dimensions
DN |
D |
D1 |
D2 |
b |
H |
Z-d |
W |
ф40 |
ф110 |
ф110 |
ф84 |
18 |
224 |
4-ф19 |
ф166 |
ф50 |
ф165 |
ф125 |
ф99 |
20 |
236 |
4-ф19 |
ф178 |
ф65 |
ф185 |
ф145 |
ф118 |
20 |
244 |
4-ф19 |
ф199 |
ф80 |
ф200 |
ф160 |
ф132 |
22 |
248 |
8-ф19 |
ф202 |
ф100 |
ф220 |
ф180 |
ф156 |
24 |
284 |
8-ф19 |
ф233 |
ф150 |
ф285 |
ф240 |
ф211 |
26 |
324 |
8-ф23 |
ф282 |
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Frequently Asked Questions
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Q What is the main purpose of this air release valve?This valve is designed to automatically release accumulated air from pump outlets or water distribution pipelines, improving pipeline and pump efficiency while ensuring safe and stable operation during normal use.
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Q What material is the ball float made of?The ball float is made of ABS plastic, while the body, bucket, inside cover, and outside cover are all constructed from cast iron for durability and long service life.
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Q Can this valve protect pipelines from pressure drops or bursting?Yes. When the pipe is under pressure, the valve can automatically inhale air to prevent bursting. It also intakes air at a high flow rate when pipelines are being drained, protecting the network against pressure drops in case of a main break.
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Q What pipe sizes (DN) are available for this valve?This valve is available in the following nominal diameters: DN40, DN50, DN65, DN80, DN100, and DN150, covering a wide range of pipeline applications.
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Q How does this valve help save energy?By continuously eliminating trapped gas from the pipeline during normal operation, the valve reduces flow resistance (drag), which in turn lowers the energy required to pump water through the system, resulting in measurable energy savings.
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Q What are the three main operational functions of this valve?The valve performs three key functions: (1) evacuation of air at a high flow rate when pipelines are being filled; (2) intake of air at a high flow rate when pipelines are being drained to prevent pressure drops; and (3) continuous degassing at a low flow rate during normal pipeline operation.
Product Packaging
01020304