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Combination Air Release Valve
Combination Air Release Valve in Canada for water and wastewater pipelines. Automatic air release and vacuum protection with reliable flow control.
Efficient air management is essential for maintaining stable flow and protecting pressurized pipeline systems. A Combination Air Release Valve Manufacturer in Canada supplies valves designed to automatically release accumulated air during normal operation, discharge large volumes of air during pipeline filling, and admit air when pipeline pressure falls below atmospheric pressure.
Features and Applications
- Automatic air release and vacuum protection
- Large-volume air discharge during pipeline filling
- Air admission during draining or vacuum conditions
- Helps prevent air locking and pipeline damage
Technical Specifications
|
Parameter |
Specification |
| Valve Type | Combination Air Release Valve |
| Design | Air Release + Air/Vacuum Valve |
| Nominal Size | DN25 to DN500 |
| Pressure Rating | PN10, PN16, PN25 / ASME Class 150 |
| Temperature Range | Up to approximately 80°C |
| Body Material | Ductile Iron ASTM A536 / Cast Iron ASTM A126 / Carbon Steel ASTM A216 WCB / Stainless Steel ASTM A351 CF8M |
| End Connections | Flanged / Threaded |
| Air Release Function | Automatic release of accumulated air under pressure |
| Air/Vacuum Function | Large-volume air discharge and air admission |
| Flow Medium | Water, wastewater and compatible liquids |
| Installation | Vertical, normally at pipeline high points |
| Operation | Automatic, float-operated |
Standards and Testing
For water-supply applications, EN 1074-4 provides requirements for air valves, while AWWA C512 covers air-release, air/vacuum and combination air valves for water and wastewater service.
Industries Served
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