Combination Air Release Valve
| Name: | Combination Air Release Valve | 
| Size Range: | DN25-DN300 | 
| Design Standard: | BS EN1074-4, AWWA C512 | 
| Flange Drilling: | BS EN1092, BS EN558, ANSI | 
| Flange: | BS4504/BS EN 1092-2: PN10&PN16 | 
| Test Standard: | EN1074 | 
| Suitable Medium: | Water, Sewage, Gas | 
| Max. Temps: | 100℃ | 
Product Description
Features
- Advanced design with simple mechanism, strong float to prevent cracking during sudden water hammer and quick closure. 
- Self-moving 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, keep float moving in specified guide rail. 
- Bottom rubber buffer for collision prevention, and drain easy with proper holes around the cage during vacuum. 
- Outside screen will be an option for safety and prevent insects and birds in. 
- Fully fusion epoxy coated inside and outside of valve for long service life. 
- Good for distribution pipeline system, if for transmission pipeline with high impact water hammer, the anti shock device should be required. 







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  Lisa Wong