Product details:

This compact relief valve is adjustable to 2,500 PSI. Adjustable Pressure PSI 1,000-2,500, Flow GPM 16, Max. PSI 2,500, Port Size in. Ball/Spring Type Direct Acting Relief Fast Opening Suited for Pressure Spike Protection Relief is Externally Adjustable Preset at 1,500 PSI@12 GPM Model Number: RD-1850-H. Age Group: adult.