APCO Air Release Valves, Air Vacuum Valves, Combination Air Valves, and Vacuum Relief/Air Inlet Valves keep pipelines flowing smoothly. Air Release Valves are used to eliminate small air pockets at the high points of a pipeline that restrict flow. Air/Vacuum Valves protect pipelines from damage by expelling or admitting large quantities of air when filling or draining. Combination air valves perform both functions. Air Valves for sewage applications feature elongated bodies that minimize clogging and prevent sewage from fouling the mechanism.
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