SRVR and SRVRP Series Flow Control Valves Sizes 08 to 20

The SRVR / SRVRP is a pressure-compensated flow control valve which maintains a constant outlet flow by means of a control function. The flow rate is largely independent of the pressure and viscosity. The valve has a variable orifice with pressure compensator spool. The variable orifice determines the flow cross section. If oil is flowing from A to B, a pressure drop occurs at the variable orifice. The pressure compensator moves into the control position which corresponds to the force equilibrium. This is created by the pressure drop acting on the control piston area and overcoming the spring force.

As the flow rate increases (increasing pressure drop), the diameter of the control orifice is reduced until the forces are equal again. A constant flow rate from A to B is therefore achieved. In the reverse direction there is free flow via a built-in check valve.

Important: if the required control pressure differential is not reached, the valve operates as a non-compensated throttle valve.

Features

• For regulating the speed of loads independently of the pressure
• For limiting the max. speed of lifting gear
• For limiting the flow rate for control oil circuits in the main circuit and offline
• Hardened and ground valve components to ensure minimal wear and extended service life
• Choice of five sizes for optimum adaptability to the system
• Space-saving installation
• Phosphate housing (standard)

Standard Models