Imperial Sizes Compression Gate Valves - Contract Size:3/4" Air Admittance Valves are designed

Air Admittance Valves are designed to allow the free entry of air into the sanitary pipework system without the escape of foul gases into the building

- Cistern Lever

Zeus 1000mm x 500mm 1 1/2B 1D S/Steel

Conceala 3 Dual Flush Plate Chrome

- Hole centres: 130-180mm

Imperial Sizes Compression Gate Valves - Contract Size:3/4" Air Admittance Valves are designedDESCRIPTION: Gate Valves when fully open offer no resistance to flow they have a wedged shaped gate which closes into a matching wedge shaped seating when the valve is closed. These valves should be fitted in horizontal pipeline when possible to prevent dirt and sludge settling in the seat of the valve preventing it from shutting properly. The sizes above are Imperial.