| Items |
 VP33A-F4N-1/3-S VP33 Series 1-Piece Check Valves |
VP33A-F4R-1/3-S VP33 Series 1-Piece Check Valves |
VP33A-M4N-1/3-S VP33 Series 1-Piece Check Valves |
VP33A-M4R-1/3-S VP33 Series 1-Piece Check Valves |
VP33A-MF4N-1/3-S VP33 Series 1-Piece Check Valves |
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| Series | Cv Reduction - 0.35 | |||||||||
| End Connection | Female NPT | Female ISO Tapered | Male NPT | Male ISO Tapered | Male NPT, Female NPT | |||||
| Size Inlet x Outlet | 1/4" Female NPT x 1/4" Female NPT | 1/4" Female ISO Tapered x 1/4" Female ISO Tapered | 1/4" Male NPT x 1/4" Male NPT | 1/4" Male ISO Tapered x 1/4" Male ISO Tapered | 1/4" Male NPT x 1/4" Female NPT | |||||
| Spring Nominal Cracking Pressure | 1/3 psi (0.02 bar) | |||||||||
| Min. Pressure | 0 | |||||||||
| Max. Pressure | 3 psig (0.21 bar) | |||||||||
| Reseal Pressures (psig) | Up to 6 - Back Pressure | |||||||||
| Reseal Pressures (bar) | 0.41 - Back Pressure | |||||||||
| Valve Body Material | Stainless Steel 316 | |||||||||
| Seal Material | FKM | |||||||||
| Spare Kit | None | |||||||||
| Cv | 0.35 | |||||||||
| L | 61.0 mm | 64.0 mm | 41.0 mm | 41.0 mm | 44.0 mm | |||||
| Hex | 19.05 mm | 19.05 mm | 14.28 mm | 14.28 mm | 19.05 mm | |||||
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