VAG GA Industries Figure 939SS Air & Vacuum Valves efficiently vent air and sewage gas from sewage forcemains as they are being filled and then close tight once the system is full and pressurized.They automatically open to admit air to limit vacuum formation when the forcemain is drained and/or a negative pressure occurs in the valve.
Whether due to the fluid itself or ambient conditions, Durovent® Wastewater Air Release Valves provide the ultimate in corrosion resistance since the body, cover, float, internal linkage, external fasteners and pipe plugs are all made from Type 316 stainless steel.
Figure 939SS Air & Vacuum Valves are typically installed at system high points where air and sewage gas naturally rise during filling and vacuum first forms during draining.The valve's short body allows it to be used in shallow cover installations where a standard elongated body would be too tall.
Figure 939SSF includes optional 'back flushing attachments' to facilitate cleaning sludge and debris from the valve
GA Figure 925SS:
Air Release Valve for Sewage, Durovent All SS
GA Figure 929SS:
Air Release Valve for Sewage, Short Body Durovent All SS
GA Figure 935SS:
Air & Vacuum Valve for Sewage, Durovent All SS
GA Figure 939SS:
Air & Vacuum Valve for Sewage, Short Body Durovent All SS
GA Figure 942SS:
Combination Air Valve for Sewage, Single Body Durovent All SS
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GA Industries sewage and wastewater valves are specially designed to accommodate the rigorous demands of the sewage collection, pumping and treatment process.
Whether a large regional sewage pump station, a small lift station or in-plant process pumping, GA Industries line of wastewater check, pump control and surge relief valves provide reliable service under difficult operating conditions. GA Industries ECO-Centric® plug valves handle solids and stringy material and are used in sewage and wastewater systems for pump, pipeline or process isolation.
Our full range of sewage and wastewater air valves automatically release air and sewage gas from forcemains to maintain pumping efficiency and minimize pipeline corrosion.