SUN HYDRAULICS
RVGDKBN

***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 RVGDKBN (RVGDKBN) is a ventable, pilot-operated, balanced piston relief cartridge with an external drain, designed for precise pressure regulation. This normally closed valve begins to open to tank port 2 when the pressure at inlet port 1 reaches the valve setting, effectively throttling flow to maintain the desired pressure. It features a vent port (port 3) for remote control and a drain port (port 4) that ensures insensitivity to back pressure. Known for its accuracy and smooth operation, this valve is suitable for applications requiring maximum pressure acceptance at port 2, such as cross-port relief circuits\u2014though spool leakage should be considered in such setups. The main stage orifice is safeguarded by a 150-micron stainless steel screen, but it is not recommended for load-holding applications due to potential leakage. The RVGDKBN employs Sun's floating style construction to minimize internal binding risks due to installation torque or machining variations. It fits a Cavity T-23A and has a capacity of up to 60 gpm (240 L/min), with factory pressure settings established at 4 gpm (15 L/min). The valve can operate under pressures up to 5000 psi (350 bar), with control pilot flow ranging from 15-20 in\u00b3/min (0.25-0.33 L/min) and a typical response time of 10 ms. Maximum valve leakage at 110 SUS (24 cSt) is limited to 4 in\u00b3/min (65 cc/min) at 1000 psi (70 bar). Adjustment requires approximately five clockwise turns, with specific hex sizes and torques detailed for installation and adjustments. This model weighs approximately 1.60 lb (0.70 kg) and utilizes Viton seals in its cartridge seal kit.