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.more Standard and specialty valve designs handle a wide variety of applications.
For 303 & 316 Stainless Steel F Hex = 1 7/8 inch. less
Unit of Measure
Specifications
Body Materials |
N/A 303 Stainless Steel 316 Stainless Steel Aluminum Brass Standard Steel |
O-Ring Seals1 | N/A Buna-N EP Neoprene Viton® |
Temperature2 | N/A -300 to 450 ºF-184 to 232 ºC |
Crack Pressure Ranges |
N/A 1 to 2 psi0.07 to 0.14 bar |
Relief / Check Crack Pressures |
N/A 5 psi10 psi25 psi50 psi65 psi0.35 bar0.7 bar1.7 bar3.5 bar4.5 bar |
Max. Operating Pressure |
N/A 3000 psi207 bar |
Max. Flow |
N/A 500 gpm1893 lpm |
A - Total Length |
N/A 5.100 in |
B |
N/A 0.91 in |
C |
N/A 4.190 in |
D |
N/A 0.53 in |
E |
N/A 1.31 in |
F Hex |
N/A 1 13/16 in |
G - End Connections |
N/A 1 JIC |
H - End Connections |
N/A 1 FPT |
Features and Benefits
N/A
|
- 1 Other materials available
- 2 O-Ring dependent