SUN HYDRAULICS
RPGELNV

***Disclaimer: The following summary contains information gathered from various sources such as product descriptions, technical specifications and catalogs. While efforts have been made to provide accurate details, inaccuracies may occur. It is advised to verify all information by contacting Sun Hydraulics directly.***
The Sun Hydraulics RPGELNV (RPGELNV) is a fast-acting, pilot-operated, balanced piston relief cartridge designed to protect hydraulic components from pressure transients. This normally closed, pressure-limiting valve opens quickly when the inlet port pressure reaches the valve setting, directing flow to the tank port to limit pressure rise. It features low pressure rise versus flow and rapid response times. The RPGELNV is suitable for cross-port relief circuits, although users should consider spool leakage in such applications. It is not recommended for load-holding applications due to potential leakage issues. The main stage orifice is safeguarded by a 150-micron stainless steel screen, and the valve can handle maximum pressures of up to 5000 psi (350 bar). The design incorporates Sun's floating style construction to reduce internal binding risks due to installation torque or machining variations. This cartridge supports a capacity of 50 gpm (200 L/min) with factory pressure settings established at 4 gpm (15 L/min). It also features adjustable settings with five clockwise turns required to increase the setting and has specific torque requirements for installation and adjustment components. The RPGELNV is compatible with systems using phosphate ester fluids when configured with EPDM seals but should not be exposed to petroleum-based fluids as they can damage the seals. Its compact design includes a valve hex size of 1-1/8 inch (28.6 mm) and weighs approximately 0.50 lb (0.25 kg).