SUN HYDRAULICS
RPGETDV

***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 RPGETDV (RPGETDV) is a fast-acting, pilot-operated, balanced piston relief cartridge designed to safeguard hydraulic components from pressure transients. This normally closed valve opens swiftly when the inlet port pressure reaches the set threshold, redirecting flow to the tank port to regulate pressure rise. Notably, it features a low-pressure rise versus flow and quick response time of approximately 2 milliseconds. The valve is compatible with cross-port relief circuits and can handle maximum pressure at port 2; however, users should be mindful of spool leakage in such applications, making it unsuitable for load-holding scenarios. The RPGETDV incorporates Sun's floating style construction to reduce risks of internal binding due to installation torque or machining variations. It has a capacity of 50 gpm (200 L/min) and operates at a maximum pressure of 5000 psi (350 bar). The main stage orifice is safeguarded by a 150-micron stainless steel screen for enhanced durability. Users can adjust the valve setting with up to 5.5 clockwise turns, and adjustments are facilitated by an internal hex screw and locknut. This cartridge is equipped with EPDM seals suitable for phosphate ester fluid systems but incompatible with petroleum-based fluids, which could damage the seals. The valve's installation requires specific torques: 45-50 lbf ft (61-68 Nm) for the valve and 80-90 lbf in (9-10 Nm) for the locknut. With a compact design weighing approximately .50 lb (0.25 kg), this relief cartridge offers robust performance in various hydraulic applications where rapid response and precise pressure control are essential.