Series SP governs rate and direction of travel for hydraulic cylinder or motor. Size 08 accommodates flows up to 3 gpm; Size 10, up to 6 gpm. Both withstand max 3,500 psi and exhibit high linearity, hysteresis, and repeatability. Closed-center and motor-spool configurations are available with 12 or 24 V coil, and can be supplied with electronic controller.