The Summit Hydraulics Hydraulic In-Line Adjustable Variable Flow Control Valve w/ Free Reverse Flow, 3/4 SAE works great on any hydraulic system. The valve is used to provide flow control and shut-off in one direction with free reverse flow in the opposite direction. Precision control allows you to provide the exact amount of flow you need to for the hydraulic system. Rotate the handle to the exact flow setting you need. Our 3/4 SAE port flow control valve with reverse flow features an easily installable design. It is made in-line for convenience and easy access for the user. Hydraulic In-Line Adjustable Variable Flow Control Valve w/ Free Reverse Flow, 3/4 SAE Zinc plated adjustment knob allows for precise valve setting. Set screw allows handle to be locked in place. Heavy Duty Construction & Materials. Carbon Steel body with black oxide finish.. Opening Pressure: 7.25 PSI. Max Flow Rating: 46 GPM. Max Pressure Rating: 5000 PSI. Buna N O-Ring Seals. 3/4 SAE threaded Ports.