SUN HYDRAULICS
RPGELDV

***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 RPGELDV (RPGELDV) is a fast-acting, pilot-operated, balanced piston relief cartridge designed to protect hydraulic components from pressure transients. These valves are normally closed and open quickly when the inlet port pressure reaches the valve setting, allowing flow to the tank port to limit pressure rise. The RPGELDV model offers low pressure rise versus flow and rapid response times, typically around 2 milliseconds. It is physically and functionally interchangeable with other 2-port relief cartridges of the same frame size and can handle maximum pressure at port 2, making it suitable for cross-port relief circuits. However, it is not recommended for load-holding applications due to potential spool leakage. The valve features a main stage orifice protected by a 150-micron stainless steel screen and incorporates Sun's floating style construction to reduce internal binding risks during installation. The RPGELDV accepts EPDM seals for systems using phosphate ester fluids but should avoid exposure to petroleum-based substances as they can damage the seals. With a capacity of 50 gpm (200 L/min) and a maximum operating pressure of 5000 psi (350 bar), this cartridge valve is robust yet compact, weighing only 0.50 lb (0.25 kg). Installation requires a torque of 45-50 lbf\u00b7ft (61-68 Nm) with specific adjustments available via an internal hex screw and locknut system. This model also comes with a Viton seal kit option for enhanced durability in various fluid environments.