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Air valves are essential components in water transmission, wastewater, and industrial pipeline systems. They automatically release trapped air and admit air when required, preventing pressure surges, energy loss, vacuum collapse, and component damage. The product family below covers single-chamber double orifice designs for potable water, wastewater-configured models, and vacuum breaker valves for large-diameter lines.
Single-Chamber Double Orifice Air Valve
Wastewater Air Valve
Vacuum Breaker Air Valve (Anti-Collapse)
| Product Type | DN (mm) | PN (bar) | Main Function | Typical Applications |
|---|---|---|---|---|
| Single-Chamber Double Orifice | 50–200 | 10–63 | Automatic aeration and continuous air release via dual orifices | Potable water distribution, irrigation networks |
| Wastewater Air Valve | 50–200 | 6–16 | Automatic air admission/release in pressurized sewage conditions | Municipal and industrial wastewater lines |
| Vacuum Breaker (Anti-Collapse) | 100–1000 | 10–63 | Admits air under negative pressure to prevent vacuum damage; spring-damped closing | Large-diameter transmission pipelines, water transfer projects |
Single-Chamber / Wastewater Air Valves
| Item No | Part Name | Material | Spare Part |
|---|---|---|---|
| 1 | Body | Ductile Iron (GJS400-15) | – |
| 2 | Bearing Cover | Ductile Iron (GJS400-15) | – |
| 3 | Float | Polypropylene or Stainless Steel ST304 | • |
| 4 | Gasket | EPDM / NBR | • |
| 5 | Guide Screw | Stainless Steel 1.4301 | – |
| 6 | Sealing Ring | EPDM / NBR | • |
| 7 | Screw | Stainless Steel A2 | – |
Vacuum Breaker Air Valve
| Part No | Part Name | Material | Spare Part |
|---|---|---|---|
| 1 | Body | St 37-2 | – |
| 2 | Flange | St 37-2 | – |
| 3 | Seat | AISI 304 | • |
| 4 | Seat Ring | NBR or EPDM | • |
| 5 | Disk | St 37-2 | – |
| 6 | Piston | St 37-2 | – |
| 7 | Cylinder | AISI 304 | – |
| 8 | Stem | X20Cr13 | – |
| 9 | Cylinder Retainer Arms | X20Cr13 | – |
| 10 | Flow Control | – | – |
| 11 | Bushing | Al.Bz | – |
| 12 | Spring | 1.4310 | – |
| 13 | Spring Support | St 37-2 | – |
| 14 | Drain | St 37-2 | – |
| 15 | Gate Valve | Ductile Iron (GJS400-15) | – |
| 16 | Air Valve | Ductile Iron (GJS400-15) | – |
Note: Vacuum breaker air valves can be manufactured in ductile iron or stainless steel depending on project requirements.
Send your inquiry including product type, DN/PN, quantity, required standards, destination port, and preferred Incoterms to receive a formal quotation with lead times and shipping options.
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by Abrisham Road
Inspection group .co
0
> 10
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From Germany 
