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

C

D

E

F Hex

G - End Connections

H - End Connections

List Price

N/A 2.27 in N/A 0.400 in N/A 1.870 in N/A 0.200 in N/A 0.560 in N/A 11/16 in N/A 1/8 MPT N/A 1/8 FPT $39.41
N/A 3.010 in N/A 0.600 in N/A 2.41 in N/A 0.280 in N/A 0.970 in N/A 13/16 in N/A 1/4 MPT N/A 1/4 FPT $43.19
N/A 3.19 in N/A 0.610 in N/A 2.580 in N/A 0.300 in N/A 0.72 in N/A 1 in N/A 3/8 MPT N/A 3/8 FPT $48.64
N/A 3.880 in N/A 0.790 in N/A 3.09 in N/A 0.340 in N/A 1.030 in N/A 1 1/8 in N/A 1/2 MPT N/A 1/2 FPT $54.37
N/A 4.340 in N/A 0.800 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 MPT N/A 3/4 FPT $85.21
N/A 5.180 in N/A 1.00 in N/A 4.180 in N/A 0.53 in N/A 1.31 in N/A 1 13/16 in N/A 1 MPT N/A 1 FPT $108.71
N/A 6.14 in N/A 0.97 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 MPT N/A 1 1/4 FPT $292.90
N/A 6.170 in N/A 1.00 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 1/2 MPT N/A 1 1/2 FPT $311.74
N/A 7.720 in N/A 1.030 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 MPT N/A 2 FPT $409.77
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