SUN HYDRAULICS
RVEDKDV

***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 RVEDKDV (RVEDKDV) is a ventable, pilot-operated, balanced piston relief cartridge with an external drain, designed as a normally closed pressure regulating valve. When the inlet port pressure reaches the set valve threshold, it begins to open to the tank port, throttling flow to maintain desired pressure levels. This model features a vent port allowing remote control via other pilot or 2-way valves and a drain port that ensures insensitivity to back pressure. The valves are known for their accuracy, low pressure rise versus flow characteristics, smooth operation, quiet performance, and moderate speed. They can accept maximum pressure at port 2 and are suitable for cross-port relief circuits, although spool leakage should be considered in such applications. The main stage orifice is safeguarded by a 150-micron stainless steel screen. However, it is not ideal for load-holding applications due to potential spool leakage. Pressure at port 4 can directly add to the valve setting in a 1:1 ratio but should not exceed 5000 psi (350 bar). Cartridges with EPDM seals are intended for systems using phosphate ester fluids; exposure to petroleum-based substances can damage these seals. The RVEDKDV incorporates Sun\u2019s floating style construction to minimize internal binding risks due to installation torque or cavity machining variations. It has a cavity size of T-22A Series 2 with a capacity of up to 30 gpm (120 L/min) and operates at pressures up to 5000 psi (350 bar). The factory pressure settings are established at 4 gpm (15 L/min), with control pilot flow ranging between 10-15 in\u00b3/min (0.16-0.25 L/min) and typical response time around 10 ms. The valve features adjustable settings via clockwise turns and includes specific torque specifications for installation and adjustment components.