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 5999-00-098-2909
NSN 6145-00-951-1334
NSN 6110-01-129-6008
NSN 6320-00-242-3300
NSN 5910-00-842-2310
NSN 2925-00-092-6526
NSN 6130-01-082-3740
NSN 2925-01-556-0333
NSN 5855-01-341-7320
NSN 5960-01-385-4333
NSN 7035-00-922-5700
NSN 6145-01-465-5533