AVV Dual Body SPECIFICATIONS
- Size Range 1/2 - 24" ( 15-600mm)
- Body Styles Series 140, 140H and 150
- Body Material Ductile iron, cast iron, carbon steel, 316 stainless steel Automatic Air Valves
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FEATURES & BENEFITS
FEATURES & BENEFITS
Air/Vacuum Valves are float-operated and have a large discharge orifice equal in size to the valve’s inlet. Air/Vacuum valves allow large volumes of air to be exhausted from or admitted into a pipeline as it is being filled or drained. As the pipeline fills, fluid enters the valve, raises the float and shuts off. When draining the pipeline, the float drops and allows air to enter, preventing a vacuum and possible pipeline collapse or damaging water column separation.
The AVV can also be configured as a Dual Body Combination Air Valve with an ARV Air Release Valve. The AVV Dual Body Combination Air Valve combines the functions of both an Air/Vacuum Valve to expel large volumes of air during filling or draining of the pipeline, along with an Air Release Valve to release small quantities of air during normal operation. Combination Air Valves are typically installed on all high points of a system where it has been determined that the functions of both an Air/Vacuum Valve and an Air Release Valve are needed to vent and protect a pipeline.
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