SUN HYDRAULICS
RPGEFJV

***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 RPGEFJV (RPGEFJV) 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 rapidly at the set pressure, diverting flow to the tank port to limit pressure rise effectively. Its design ensures low pressure rise versus flow and provides quick response times, typically around 2 milliseconds. It features a 150-micron stainless steel screen protecting the main stage orifice and is not suitable for load-holding applications due to spool leakage. The RPGEFJV can handle a maximum operating pressure of 5000 psi (350 bar) and has a capacity of 50 gpm (200 L/min). It is compatible with cross-port relief circuits but requires consideration for spool leakage in such applications. The valve's construction minimizes internal binding risks due to installation torque or machining variations. It includes EPDM seals for use with phosphate ester fluids but should not be exposed to petroleum-based substances as they may damage the seals. The valve's installation specifications include a hex size of 1-1/8 inches and an installation torque range of 45-50 lbf-ft (61-68 Nm). Adjustments are made via an internal hex screw with five clockwise turns needed to increase settings, while the locknut requires a torque of 80-90 lbf-in (9-10 Nm). This cartridge weighs approximately .50 lb (.25 kg) and is interchangeable within its series for consistent performance across applications requiring rapid pressure relief capabilities.