Inline Check/Relief Valves
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.
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- Inlet Port Type IJIC Remove This Item
- Seal Material Viton® Remove This Item
- Crack Pressure 25 PSI Remove This Item
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| Part Number | Valve Size | Inlet Port | Outlet Port | Max Working Pressure | Crack Pressure | Max Flow Coefficient | Body Material | Seal Material | |
|---|---|---|---|---|---|---|---|---|---|
| 1504A-18-25 | 04 | 1/4" IJIC | 1/4" JIC | 3000 PSI | 25 PSI | 0.88 | Aluminum | Viton® | |
| 1504B-18-25 | 04 | 1/4" IJIC | 1/4" JIC | 3000 PSI | 25 PSI | 0.88 | Brass | Viton® | |
| 1504C-18-25 | 04 | 1/4" IJIC | 1/4" JIC | 3000 PSI | 25 PSI | 0.88 | Steel | Viton® | |
| 1504D-18-25 | 04 | 1/4" IJIC | 1/4" JIC | 3000 PSI | 25 PSI | 0.88 | 303 Stainless Steel | Viton® | |
| 1504F-18-25 | 04 | 1/4" IJIC | 1/4" JIC | 3000 PSI | 25 PSI | 0.88 | 316 Stainless Steel | Viton® | |
| 1506A-18-25 | 06 | 3/8" IJIC | 3/8" JIC | 3000 PSI | 25 PSI | 1.3 | Aluminum | Viton® | |
| 1506B-18-25 | 06 | 3/8" IJIC | 3/8" JIC | 3000 PSI | 25 PSI | 1.3 | Brass | Viton® | |
| 1506C-18-25 | 06 | 3/8" IJIC | 3/8" JIC | 3000 PSI | 25 PSI | 1.3 | Steel | Viton® | |
| 1506D-18-25 | 06 | 3/8" IJIC | 3/8" JIC | 3000 PSI | 25 PSI | 1.3 | 303 Stainless Steel | Viton® |
