Air Valves Potable Water - Single Large Orifice Air Valve PN16 – 50 to 100mm

- Cast iron construction rilsan coated
- High impact plastic float
- WRc approved
- Venting of air during filling and admitting air during vacuum / drain down
- Install vertically with inlet flange at bottom
- Install with isolation valve
- Tapped outlet for piping away discharge ( in pump stations ) or fitting restriction on the outlet flow
Section 4.3