A normally open valve which permits the passage of air or gases in both directions but prevents the passage of liquids in one direction. The action is controlled by a buoyant flow control device which rises against its seat when liquids are present therein.
NSN 2925-00-730-3115
NSN 5975-00-698-5791
NSN 5935-01-158-3190
NSN 5990-01-167-1308
NSN 5945-01-579-3801
NSN 5855-00-167-7893
NSN 6240-01-524-4088
NSN 6130-01-040-6119
NSN 6105-01-351-8436
NSN 5855-00-149-0766
NSN 5910-01-094-5891
NSN 5975-01-160-8617