SUN HYDRAULICS
RVIDLWV

***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 RVIDLWV (RVIDLWV) is a ventable, pilot-operated, balanced piston relief cartridge with an external drain, designed as a normally closed pressure regulating valve. This valve opens to the tank port 2 when the inlet port 1 pressure reaches the preset level, effectively throttling flow to maintain regulated pressure. It features a vent port 3 that allows for remote control through other pilot or 2-way valves and a drain port 4 that ensures insensitivity to back pressure. Notably accurate and smooth in operation, this valve exhibits low-pressure rise versus flow and moderate response speed. It is capable of handling maximum pressure at port 2 and can be used in cross-port relief circuits, though spool leakage should be considered in such applications. The main stage orifice is safeguarded by a 150-micron stainless steel screen. This cartridge is not recommended for load-holding applications due to potential spool leakage. Pressure at port 4 directly adds to the valve setting on a one-to-one basis, with a maximum allowable limit of 5000 psi (350 bar). Cartridges with EPDM seals are compatible with systems using phosphate ester fluids but are susceptible to damage from petroleum-based substances. The Sun floating style construction minimizes risks of internal binding due to excessive installation torque or machining variations. The RVIDLWV fits into cavity T-24A and supports a capacity of up to 120 gpm (480 L/min). It operates under maximum pressures of 5000 psi (350 bar) with control pilot flows ranging from 15 to 20 in\u00b3/min (0.25 to 0.33 L/min). Typical response time is around 10 ms, while maximum valve leakage at specified conditions is about 5 in\u00b3/min (80 cc/min). The adjustment involves up to five turns clockwise for increased settings. Installation requires specific torque values for secure fitting and adjustment components.