PC-50 Series Cylinder Port Single Pilot Operated Check Valve, 3/8 NPT Main Port, 1/4 NPT Pilot Port, Up To 8.00 GPM

It tops out at 8 gallons per minute, based on the specs for that model.

The PC-50 Series Cylinder Port Single Pilot Operated Check Valve is used to control the flow of hydraulic fluid in a system. It allows fluid to flow in one direction while blocking flow in the reverse direction. The pilot port, which is 1/4 NPT, can be used to open the valve and allow reverse flow, making it useful for applications where controlled backflow is necessary. With a main port size of 3/8 NPT and a flow capacity of up to 8.00 GPM, it's suitable for various hydraulic systems that require reliable flow control.