Vickers Incorporated 4CG-03-A-20 Hydraulic Check Valve

The Vickers Incorporated 4CG-03-A-20 hydraulic check valve is an inline, subplate-style one-way valve that permits flow in the forward direction while preventing reverse flow to protect pumps, actuators, and system integrity in industrial hydraulic systems. It belongs to the 4CG-03 model series and uses size 03 (NG6 / CETOP 3 platform) with configuration code A-20, delivering automatic check valve action for reliable load holding and backflow prevention. Manufactured by Vickers (Eaton Vickers), this hydraulic check valve is used in hydraulic power units, presses, injection molding machines, conveyors, material handling equipment, machine tools, and other industrial automation environments where maintaining pressure and preventing reverse flow is critical. The valve is designed for hydraulic oil and compatible industrial fluids, with an industrial-duty body suitable for demanding manufacturing and process automation services. Common replacements include Vickers CG-03 and Eaton Vickers DGMPC-3, and Parker CV Series hydraulic check valves, providing compatible form-fit alternatives in retrofit scenarios.