SUN HYDRAULICS
RVGDKCN

***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 RVGDKCN (RVGDKCN) is a ventable, pilot-operated, balanced piston relief cartridge featuring an external drain. This valve is designed to be normally closed, serving as a pressure regulating device. When the inlet port 1 reaches the predetermined pressure setting, the valve opens to tank port 2, throttling flow to maintain regulated pressure. It includes a vent port 3 for remote control capabilities and a drain port 4 that ensures insensitivity to back pressure. The valve is known for its accuracy, low-pressure rise relative to flow, smooth operation, quiet performance, and moderate speed. It is suitable for cross port relief circuits and can handle maximum pressure at port 2; however, it should not be used in load holding applications due to potential spool leakage. The main stage orifice of the RVGDKCN is safeguarded by a 150-micron stainless steel screen. The pressure at port 4 directly adds to the valve setting at a 1:1 ratio but should not exceed 5000 psi (350 bar). The construction incorporates Sun\u2019s floating style design to reduce internal binding risks due to excessive installation torque or cavity/cartridge machining variations. The valve fits into cavity T-23A with a Series 3 capacity of up to 60 gpm (240 L/min). Factory settings are established at 4 gpm (15 L/min), with maximum operating pressures reaching up to 5000 psi (350 bar). Control pilot flow ranges between 15-20 in\u00b3/min (0.25-0.33 L/min) with a typical response time of around 10 milliseconds and maximum leakage of approximately 4 in\u00b3/min at specific conditions. For adjustments, there are five turns clockwise needed to increase settings; it features a valve hex size of 1-1/4 inches (31.8 mm) and an installation torque range of 150-160 lbf ft (203-217 Nm). The model weighs approximately 1.60 lb (0.70 kg) and comes with Viton seal kits available under part number: 990023006.