Air Valves Potable Water - Controlled Flow Air Valves
The rate of venting and inflow can be controlled or stopped to suit specific applications
- A – 50mm double air valve fitted with inflow check valve allows venting only
- B – 50mm double air valve with reduced bore orifice.
- C – 25mm double air valve with inflow check valve
- D - 50mm double air valve with inflow check reduced bore outlet and inflow via holes in connecting nipple to control rate of inflow
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Section 4.10