Solenoid-operated relief valves reduce system complexity while increasing safety

New to Sun’s cartridge portfolio and to the FLeX Series family, Sun Hydraulics now offers four new solenoid-operated relief valves. With a 2-stage, field-adjustable design, the RVC valves offer precise and dependable pressure regulation with up to 25 gpm (100 lpm) flow rates.

Sun’s RVC valves offer fully adjustable, ventable and blockable relief functions for both mobile and industrial functions.

They reduce complexity by combining the functionality of two valves into one body and one cavity, reducing materials and creating a more compact and efficient system.

They also improve reliability because the main stage orifice is protected by a 150-micron stainless steel screen for extended product life. A leak-free adjustment screw improves safety because its mechanical stop prevents the screw from backing out, offering safe, reliable field adjustment.

These are 2-stage, balanced piston reliefs. The 2-stage design combines two cartridges in one, reducing complexity and overall cost. The RVC* valves are also ideal in fixed displacement pump applications. Each of the four models in the RVC valve family presents a distinct advantage to specific hydraulic systems and applications.

RVCK – Use for pump start-up to unload until pressure is built, eliminating stress on the system, then energize during operation.

RVCL – Allows the user to energize at start-up and de-energize during operations to keep power consumption lower during use.

RVCM – Ideal in circuits that require two pressure settings, one with a high setting at acceleration, and one with a setting that is constant. The blockable RVCM regulates pressure throughout.

RVCN – Use the relief function to preload the cylinder and avoid decompression shock in systems built for high capacities.