SUN HYDRAULICS
RVEALFV

***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 RVEALFV (RVEALFV) is a ventable, pilot-operated, balanced piston relief cartridge designed for precise pressure regulation in hydraulic systems. This normally closed valve opens to the tank port 2 when the inlet port 1 pressure reaches the set threshold, effectively throttling flow to maintain desired pressure levels. A notable feature is its vent port 3, which allows for remote control through other pilot or two-way valves. The RVEALFV model is characterized by its accuracy, low pressure rise versus flow, smooth and quiet operation, and moderate response speed. It can handle maximum pressures at port 2 and is suitable for cross-port relief circuits with considerations for spool leakage. This valve incorporates a main stage orifice protected by a 150-micron stainless steel screen and features Sun's floating style construction to minimize internal binding due to installation torque or machining variations. It has a capacity of 30 gpm (120 L/min) and operates at pressures up to 5000 psi (350 bar). The factory pressure settings are established at a flow rate of 4 gpm (15 L/min), with a typical response time of 10 ms. The valve includes an adjustment screw with an internal hex size of 5/32 in (4 mm), allowing for precise setting adjustments through clockwise turns. The RVEALFV model weighs approximately .70 lb (.30 kg) and comes with EPDM seals suitable for phosphate ester fluid systems; however, exposure to petroleum-based fluids should be avoided as it may damage the seals. This product is not recommended for load holding applications due to potential spool leakage but provides reliable performance in general hydraulic pressure regulation tasks.