Productgroup: Air Valves
GA industries Figure 991-D Vacuum Breaking Valves are specially designed for use with sewage and other solids bearing fluids. The valve design does not have spokes or springs exposed to the fluid that could collect debris and stringy solids.
The large orifice valve opens to rapidly admit air into the pipeline or system during negative pressure conditions such as column separation to limit the vacuum and then closes when the pressure recovers to atmospheric.
The valve is standard 3” to 8” sizes with Class 125 flanged connection. Larger sizes and higher pressures are available.
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