SUN HYDRAULICS
RVGAKHV

***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 RVGAKHV (RVGAKHV) is a ventable, pilot-operated, balanced piston relief cartridge designed for precise pressure regulation. This normally closed valve begins to open to tank port 2 when the inlet port 1 pressure reaches the set threshold, effectively throttling flow to maintain desired pressure levels. Equipped with a vent port 3, it allows for remote control through other pilot or two-way valves. The valve is known for its accuracy, low-pressure rise relative to flow, smooth and quiet operation, and moderate speed. It accepts maximum pressure 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 safeguarded by a 150-micron stainless steel screen. This valve is not recommended for load-holding applications due to potential spool leakage. The RVGAKHV features Sun's floating-style construction to prevent internal binding from excessive installation torque or machining variations. It operates with a maximum pressure of 5000 psi (350 bar) and has a capacity of 60 gpm (240 L/min). Its response time is typically around 10 ms with a control pilot flow ranging from 15 to 20 in\u00b3/min (0.25 to 0.33 L/min). It requires an installation torque of 150-160 lbf ft (203-217 Nm) and has an adjustment screw internal hex size of 5/32 in (4 mm). Cartridges with EPDM seals are intended for phosphate ester fluid systems; exposure to petroleum-based fluids can damage these seals. The valve's design includes considerations such as backpressure on the tank port being additive to the valve setting at a ratio of 1:1 and factory pressure settings established at a flow rate of 4 gpm (15 L/min).