Foster 4 Series 3/8″ x 1/2″ MPT Brass/Stainless Steel EPDM Seal 1-Way Automatic Socket sleeve type couplings for steam are widely used to connect air and low pressure fluid lines. Their compact and economical design uses a ball locking mechanism consisting of captive stainless steel balls that engage the locking groove on the mating plug. Interchangeable with ANSI/NFPA T3.20.14-1990 & ISO 6150-B. Working Pressure: 300 psig, vacuum to 27″ Hg Temp Range: -40° to 250°F Locking Device: Stainless Steel Balls High flow metal valves. Wide range of body sizes, materials, options and end terminations are available to meet specific needs.
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