Features
- Advanced design with simple mechanism, strong float to prevent cracking during sudden water hammer & quick closure.
- Aerokinetic mechanism to resist blow shut under higher air velocity even up to sonic velocity of air.
- No arms or levers to prevent vibrating, bending, direct closure of the float.
- Smooth cage outside of the float, movement restricted to specified guide rail.
- Bottom rubber buffer for collision prevention and easy to drain with proper holes around the cage during vacuum.
- All iron parts are coated inside & outside with fusion bonded epoxy for corrosion resistance as per AWWA C550.
- Suitable for distribution pipeline. For pipeline with high risk of water hammer, anti-shock device is advised.
- Combination Air Release Valve fully complies with manufacturing standard AWWA C512 and BS EN 1074-4.
- 1" to 2" available in threaded connection. 2" to 12" available with ANSI Class 125 and Class 150 flanges.
- Valves are certified NSF61 for Drinking Water and NSF372 for Lead Content.
Specifications
| Design Standard | AWWA C512 / BS EN 1074-4 |
| Size Range | 1” – 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 NPT Male |
| Test & Inspection | AWWA C512 |
| Materials | Body : Ductile Iron Cover : Carbon Steel |
