Air and vacuum valve details.
Air release valve detail.
Table of contents 02 11 2020 updated.
Air release valves sometimes referred to as small orifice valves are often fitted at the highest point on a pipeline to continually release unwanted air during system operation to protect against unwanted surges and maintain system efficiency.
Air release valves vacuum valves air vacuum valve air release valve.
Standard drawings title page 08 23 2019 updated.
Product description pdf version cad version.
An air release valve can open against internal pressure because the internal lever mechanism multiplies the float force to be greater than the internal pressure.
Air release valves or air relief valve function to release air pockets that collect at each high point of a full pressured pipeline.
2 inch air valve in manhole for 24 inch diameter and smaller pipelines w 2 0.
Wa 02 50mm 2 automatic combination air release and air vacuum valve installations 11 03 2006.
Vent box for extended air release pipe w 2 0a.
Vent box for air vacuum valve vault on 30 inch diameter and larger pipes w 2 0b.
Wa 01 50mm 2 manual air valve 11 03 2006.
Potable water and recycled water facilities.
Air release valves or air relief valve function to release air pockets that collect at each high point of a full pressured pipeline.
Wa 03 50mm 2 air and vacuum valve enclosure locations 11 03 2006.