- Designed to relieve vacuum when present in a piping system or loading arm by allowing atmospheric air to enter the system.
- Typical application is to allow stationary product in a top loading arm to operate to the lowest point.
- Available with ¾ ” and 1″ connection in brass, stainless steel or aluminum.
- Standard seal is Viton with options to suit the particular application such as hydrogenated Buna, PTFE.
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