Ball Check Plug Industrial (Male Pipe Thread) , ( 1/2 ” Flow, One Way Shut-Off )

Standard Industrial interchange design, most widely used in industry. 3 and 5 series automatic water service comply with A-A-59439 ( formerly MIL-C-4109F ). 3-4-5-6 Series meet ISO 6150-B, ANSI ( NFPA)T3.20.14-1990. In addition, SV sockets meet ISO 4414. Sockets are normally supplied with a Buna-N compound. Other seal are available. Ethylene Propylene seals are available for steam. Viton seals are avialble for heat. Ball check plugs eliminate hose whip at disconnect by checking the rapid flow of downstream air.