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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Item #

A - Total Length

B

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D

E

F Hex

G - End Connections

H - End Connections

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N/A 2.43 in N/A 0.550 in N/A 1.88 in N/A 0.200 in N/A 0.560 in N/A 11/16 in N/A 1/4 JIC N/A 1/8 FPT $39.41
N/A 2.97 in N/A 0.560 in N/A 2.41 in N/A 0.280 in N/A 0.970 in N/A 13/16 in N/A 3/8 JIC N/A 1/4 FPT $43.19
N/A 3.24 in N/A 0.660 in N/A 2.580 in N/A 0.300 in N/A 0.72 in N/A 1 in N/A 1/2 JIC N/A 3/8 FPT $48.65
N/A 3.850 in N/A 0.760 in N/A 3.09 in N/A 0.340 in N/A 1.030 in N/A 1 1/8 in N/A 5/8 JIC N/A 1/2 FPT $54.37
N/A 4.400 in N/A 0.860 in N/A 3.54 in N/A 0.410 in N/A 1.190 in N/A 1 7/16 in N/A 3/4 JIC N/A 3/4 FPT $85.21
N/A 5.100 in N/A 0.91 in N/A 4.190 in N/A 0.53 in N/A 1.31 in N/A 1 13/16 in N/A 1 JIC N/A 1 FPT $108.71
N/A 6.130 in N/A 0.960 in N/A 5.170 in N/A 0.730 in N/A 1.590 in N/A 2 5/8 in N/A 1 1/4 JIC N/A 1 1/4 FPT $292.90
N/A 6.260 in N/A 1.080 in N/A 5.180 in N/A 0.730 in N/A 1.590 in N/A 2 5/8 in N/A 1 1/2 JIC N/A 1 1/2 FPT $311.74
N/A 8.020 in N/A 1.330 in N/A 6.690 in N/A 0.94 in N/A 2.000 in N/A 3 1/2 in N/A 2 JIC N/A 2 FPT $409.77
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