Flow Control and Check Valves These Valves are pressure and temperature compensating type valves and maintain a constant flow rate independent of change in system pressure (load) and temperature (Viscosity of the fluid). They Control flow rate of the hydraulic circuit and eventually control speed of the actuator precisely. Valves with an integral check valve allow a controlled flow and reverse free flow. hydraulic flow control valve electro-hydraulic proportional directional and flow control valve yuken valve 3d model polyhydron flow control valve yuken hydraulic hose yuken dealers in bangalore yuken dealer in kolkata yuken make power pack