Cartridge Insert Check/Relief Valves
These spring-operated poppet valves, with optional relief settings, allow free flow in only one direction and prevent backflow. They also are used for relief and by-pass functions; however, they should not be used as safety relief valves.
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| Part Number | Cavity Diameter | Body Material | Seal Material | Crack Pressure | Max Flow Coefficient | |
|---|---|---|---|---|---|---|
| 2201B-1 | 0.312" | Brass | Buna-N | 1-2 PSI | 0.15 | |
| 2201B-1-5 | 0.312" | Brass | Buna-N | 5 PSI | 0.15 | |
| 2201B-1-10 | 0.312" | Brass | Buna-N | 10 PSI | 0.15 | |
| 2201B-1-25 | 0.312" | Brass | Buna-N | 25 PSI | 0.15 | |
| 2201B-1-50 | 0.312" | Brass | Buna-N | 50 PSI | 0.15 | |
| 2201B-1-65 | 0.312" | Brass | Buna-N | 65 PSI | 0.15 | |
| 2201B-3-5 | 0.312" | Brass | Teflon® | 5 PSI | 0.15 | |
| 2201B-3-10 | 0.312" | Brass | Teflon® | 10 PSI | 0.15 | |
| 2201B-3-25 | 0.312" | Brass | Teflon® | 25 PSI | 0.15 |
