SUN HYDRAULICS
RPGETUV

***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 RPGETUV (RPGETUV) 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 to manage pressure spikes but may sacrifice smoothness in operation. When the inlet port reaches the valve's set pressure, it begins to open to the tank port, throttling flow and limiting further pressure increase. The RPGETUV is known for its low-pressure rise versus flow and rapid response time of approximately 2 milliseconds. It is physically and functionally interchangeable with other 2-port relief cartridges within the same frame size. This cartridge can handle a maximum operating pressure of 5000 psi (350 bar) and has a capacity of up to 50 gpm (200 L/min). It features a main stage orifice protected by a 150-micron stainless steel screen, making it unsuitable for load-holding applications due to potential spool leakage. The valve will accept maximum pressure at port 2, which is beneficial for cross-port relief circuits; however, spool leakage should be considered in such configurations. The RPGETUV incorporates Sun's floating style construction to minimize internal part binding from excessive installation torque or machining variations. Cartridges with EPDM seals are compatible with phosphate ester fluids but may be damaged by petroleum-based products. The valve's backpressure on the tank port adds directly to the setting at a 1:1 ratio. For installation, it requires a cavity T-3A and has specific torque requirements for both the valve installation and locknut adjustments. This robust relief cartridge offers reliable performance in demanding hydraulic systems where quick response times are critical for protecting components from sudden pressure changes.