SUN HYDRAULICS
RVGDCBN

***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 RVGDCBN (RVGDCBN) is a ventable, pilot-operated, balanced piston relief cartridge with an external drain, designed as a normally closed pressure regulating valve. When the pressure at the inlet port 1 reaches the valve setting, it opens to tank port 2 to throttle flow and regulate pressure. This model features a vent port 3 for remote control by other pilot or two-way valves and a drain port 4 that ensures insensitivity to back pressure. It is noted for its accuracy, low-pressure rise versus flow, smooth operation, quiet performance, and moderate speed. The valve can handle maximum pressure at port 2 and is suitable for cross-port relief circuits, though spool leakage should be considered in such applications. It incorporates a main stage orifice protected by a 150-micron stainless steel screen but is not recommended for load-holding applications due to potential spool leakage. The RVGDCBN model includes Sun's floating style construction to reduce the risk of internal parts binding from excessive installation torque or variations in cavity/cartridge machining. It fits into Cavity T-23A, Series 3 with a capacity of 60 gpm (240 L/min) and has factory pressure settings established at 4 gpm (15 L/min). The maximum operating pressure is 5000 psi (350 bar), with control pilot flow ranging from 15-20 in\u00b3/min (0.25-0.33 L/min). Typical response time is approximately 10 ms, with maximum valve leakage at 110 SUS (24 cSt) being 4 in\u00b3/min (65 cc/min) at 1000 psi (70 bar). The adjustment requires up to five clockwise turns to increase setting; installation torque ranges between 150-160 lbf\u00b7ft (203-217 Nm), and it comes equipped with Viton seal kits for optimal performance.