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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A - Total Length

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F Hex

G - End Connections

H - End Connections

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N/A 2.63 in N/A 0.550 in N/A 1.53 in N/A 0.200 in N/A 0.220 in N/A 11/16 in N/A 1/4 JIC N/A 1/4 JIC $40.49
N/A 2.900 in N/A 0.560 in N/A 1.78 in N/A 0.280 in N/A 0.350 in N/A 13/16 in N/A 3/8 JIC N/A 3/8 JIC $44.36
N/A 3.550 in N/A 0.660 in N/A 2.23 in N/A 0.300 in N/A 0.370 in N/A 1 in N/A 1/2 JIC N/A 1/2 JIC $49.97
N/A 3.95 in N/A 0.760 in N/A 2.43 in N/A 0.340 in N/A 0.370 in N/A 1 1/8 in N/A 5/8 JIC N/A 5/8 JIC $55.87
N/A 4.51 in N/A 0.860 in N/A 2.790 in N/A 0.410 in N/A 0.440 in N/A 1 7/16 in N/A 3/4 JIC N/A 3/4 JIC $87.53
N/A 5.290 in N/A 0.91 in N/A 3.470 in N/A 0.53 in N/A 0.590 in N/A 1 13/16 in N/A 1 JIC N/A 1 JIC $111.67
N/A 6.360 in N/A 0.960 in N/A 4.440 in N/A 0.730 in N/A 0.87 in N/A 2 5/8 in N/A 1 1/4 JIC N/A 1 1/4 JIC $300.89
N/A 6.610 in N/A 1.080 in N/A 4.450 in N/A 0.730 in N/A 0.87 in N/A 2 5/8 in N/A 1 1/2 JIC N/A 1 1/2 JIC $320.22
N/A 8.540 in N/A 1.330 in N/A 5.880 in N/A 0.94 in N/A 1.18 in N/A 3 1/2 in N/A 2 JIC N/A 2 JIC $420.95
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