These spring-operated poppet valves, with optional relief settings, allow free flow in only one direction and prevent backflow – sometimes referred to as “backflow preventor”, “flow stop”, or “non-return” valve. They also are used for relief and by-pass functions; however, they should not be used as safety relief valves. Kepner's Flexible Seal Seat™ combines metal-to-metal contact with a resilient seal seat ensuring dependable bubble-tight shutoff of liquid or gas, and long service life. Standard and specialty valve designs handle a wide variety of applications.
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F Hex

G - End Connections

H - End Connections

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N/A 2.550 in N/A 0.550 in N/A 2.00 in N/A 0.200 in N/A 0.690 in N/A 11/16 in N/A 1/4 JIC N/A 1/4 IJIC $40.49
N/A 3 1/4 in N/A 0.660 in N/A 2.590 in N/A 0.300 in N/A 0.730 in N/A 1 in N/A 1/2 JIC N/A 1/2 IJIC $49.97
N/A 2.930 in N/A 0.560 in N/A 2.37 in N/A 0.280 in N/A 0.94 in N/A 13/16 in N/A 3/8 JIC N/A 3/8 IJIC $44.36
N/A 3.910 in N/A 0.760 in N/A 3.150 in N/A 0.340 in N/A 1.090 in N/A 1 1/8 in N/A 5/8 JIC N/A 5/8 IJIC $55.87
N/A 4.470 in N/A 0.860 in N/A 3.610 in N/A 0.410 in N/A 1.270 in N/A 1 7/16 in N/A 3/4 JIC N/A 3/4 IJIC $87.53
N/A 5.190 in N/A 0.91 in N/A 4.280 in N/A 0.53 in N/A 1.410 in N/A 1 13/16 in N/A 1 JIC N/A 1 IJIC $111.67
N/A 6.540 in N/A 0.960 in N/A 5.580 in N/A 0.730 in N/A 2.000 in N/A 2 5/8 in N/A 1 1/4 JIC N/A 1 1/4 IJIC $300.89
N/A 6.660 in N/A 1.080 in N/A 5.580 in N/A 0.730 in N/A 2.000 in N/A 2 5/8 in N/A 1 1/2 JIC N/A 1 1/2 IJIC $320.22
N/A 8.520 in N/A 1.330 in N/A 7.190 in N/A 0.94 in N/A 2.500 in N/A 3 1/2 in N/A 2 JIC N/A 2 IJIC $420.95
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