Sun Hydraulics RPEC-CWN Pilot-Operated Balanced Piston Relief Valve

The Sun Hydraulics RPEC-CWN Pilot-Operated Balanced Piston Relief Valve is a hydraulic safety device that protects circuits by limiting pressure through a pilot-controlled main valve. In this balanced-piston design, the main relief element is actuated by a pilot signal, providing accurate, repeatable relief despite changing system pressures. The pilot-operated arrangement generally enables higher flow capacity and more stable set-pressure control than direct-acting options. With a 3500 PSI rating, the valve opens to divert flow when the set pressure is reached, helping prevent component damage and maintain steady operation under peak loads. The RPEC-CWN model from Sun Hydraulics is suited for industrial hydraulic circuits and power units that require reliable relief performance and precise pressure control in demanding applications.