SUN HYDRAULICS
RVGDLHN

***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 RVGDLHN (RVGDLHN) is a ventable, pilot-operated, balanced piston relief cartridge with an external drain, designed for precise pressure regulation. This normally closed valve opens to tank port 2 when the inlet port 1 pressure reaches the set point, effectively throttling flow to regulate pressure. It features a vent port that allows for remote control by other pilot or 2-way valves and a drain port that ensures insensitivity to back pressure. The RVGDLHN is known for its accuracy, low pressure rise versus flow, smooth operation, and moderate speed. It is capable of handling maximum pressures at port 2 and is suitable for cross-port relief circuits; however, spool leakage should be considered in such applications. The main stage orifice is protected by a 150-micron stainless steel screen. This valve is not recommended for load holding applications due to potential spool leakage. The RVGDLHN incorporates Sun's floating style construction to minimize internal part binding from excessive installation torque or cavity/cartridge machining variations. With a capacity of 60 gpm (240 L/min), it operates at a maximum pressure of 5000 psi (350 bar). Its control pilot flow ranges from 15-20 in\u00b3/min (0.25-0.33 L/min), with a typical response time of 10 ms and maximum valve leakage at 110 SUS (24 cSt) being 4 in\u00b3/min (65 cc/min) at 1000 psi (70 bar). Adjustment requires up to five clockwise turns to increase settings, with specific torque specifications provided for installation and adjustment components. Weighing approximately 1.60 lb (0.70 kg), the RVGDLHN uses Viton seals available in its cartridge seal kit model number: 990023006.