SUN HYDRAULICS
RPGEKGN

***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 RPGEKGN (Material Number: RPGEKGN) is a fast-acting, pilot-operated, balanced piston relief cartridge designed to protect hydraulic components from pressure transients. These normally closed, pressure-limiting valves open quickly when the inlet port reaches the valve setting, directing flow to the tank port to control pressure rise. The RPGEKGN model is known for its rapid response and low pressure rise versus flow characteristics. It features a main stage orifice protected by a 150-micron stainless steel screen and incorporates Sun's floating style construction to prevent binding due to excessive installation torque or machining variations. This cartridge is suitable for cross-port relief circuits but should be used with caution due to potential spool leakage. It is not recommended for load-holding applications. The valve's back pressure on the tank port adds directly to the valve setting at a 1:1 ratio. Configurations with EPDM seals are intended for systems using phosphate ester fluids and should not be exposed to petroleum-based substances, as this can damage the seals. The RPGEKGN has a cavity size of T-3A, Series 2, with a capacity of 50 gpm (200 L/min) and operates at a maximum pressure of 5000 psi (350 bar). It typically responds within 2 milliseconds and has minimal leakage at specified conditions. The valve requires specific installation torque settings and features adjustable settings via an internal hex screw and locknut mechanism. This product weighs approximately 0.50 lb (0.25 kg) and comes with an available Viton seal kit (990203006).