RD-1875-S 

The Prince valve model RD-1800 is a direct acting ball/spring type pressure relief. The valve is compact and simple in design. This type relief is fast opening and is well suited for pressure spike protection.  Please refer to the model RV relief for a system pressure relief. The valve is available with a standard steel seat, model RD-1800S, or with a hardened seat, model RD-1800H. Both models are externally adjustable.  Adjustable from 1000 - 2500 PSI, set at 1500 PSI

Max Flow GPM  - 20

3/4" NPT ports