Features
- Advanced design with simple mechanism along with strong float to prevent cracking during sudden water hammer & quick closure.
- Aerokinetic mechanism to resist blow shut under high air velocity even up to sonic velocity of air.
- For the potential water hammer area or transmission pipeline, it is recommended to use anti-shock combination air valve to prevent from damage or impact of severe water hammer.
- Anti-shock device is installed on top of bonnet, it will slow down the exhausting air flow during filling to prevent hammer impact, under vacuum condition, the device will drop down and let large air into the pipeline.
- No arms or levers. This prevents vibrating, bending, direct closure of the float.
- Smooth barrel outside of the float, controls float movements within specified guide rail.
- Guide Barrel is equipped with a rubber buffer to prevent collision between the float and the barrel. Draining is facilitated by addition of holes on the side of the barrel.
- All iron parts are coated inside & outside with fusion bonded epoxy for corrosion resistance as per AWWA C550.
- Anti-shock Air Release Valve fully complies with manufacturing standard AWWA C512 and BS EN 1074-4.
Specifications
| Design Standard | AWWA C512 / BS EN 1074-4 |
| Size Range | 2” – 12” |
| Pressure Rating | 200 psi / 300 psi |
| Working Temperature | -10˚C ~ +80˚C 14˚F ~ +176˚F |
| End Connection | ANSI B16.1 ASME B16.5 |
| Test & Inspection | AWWA C512 |
| Materials | Body : Ductile Iron Cover : Carbon Steel |
