Brand Hydraulics 4-Way Directional Control Valve with pressure-compensated flow control is nominally rated for 3000 PSI, with adjustable relief preset at 1500 PSI. Tandem metering spool with friction detent spool action. U.S.A. Max. Flow (GPM): 18, Inlet Port (in.): 3/4 NPT, Outlet Port (in.): 3/4 NPT, Working Port (in.): 1/2 NPT, Max. PSI: 3,000, Directional Control: 4 way, Adjustable Release Pressure PSI: 1,500 - 3,000