SUN HYDRAULICS
RVEAQFN

***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 RVEAQFN (RVEAQFN) is a ventable, pilot-operated, balanced piston relief cartridge designed to regulate pressure in hydraulic systems. This normally closed pressure regulating valve opens to the tank port when the inlet pressure reaches the valve setting, throttling flow to maintain desired pressure levels. It features a vent port that allows for remote control by other pilot or two-way valves, providing versatility in various applications. The valve is noted for its accuracy, low pressure rise versus flow, smooth operation, and moderate speed. This cartridge 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 is protected by a 150-micron stainless steel screen, ensuring reliability and durability. Back pressure on the tank port directly affects the valve setting at a 1:1 ratio. The RVEAQFN model incorporates Sun's floating style construction to minimize internal part binding due to installation torque or cavity machining variations. It operates with a capacity of 30 gpm (120 L/min) and can withstand a maximum operating pressure of 5000 psi (350 bar). The control pilot flow ranges from 10-15 in\u00b3/min (0.16-0.25 L/min), with typical response times around 10 ms. For systems utilizing phosphate ester fluids, cartridges configured with EPDM seals are recommended; exposure to petroleum-based fluids will damage these seals. Installation specifics include a valve hex size of 1-1/8 inches (28.6 mm) and an installation torque between 45-50 lbf ft (61-68 Nm). The adjustment screw features an internal hex size of 5/32 inches (4 mm), while the locknut hex size is 9/16 inches (15 mm) with a torque requirement of 80-90 lbf in (9-10 Nm). The model weighs approximately .70 lb (.30 kg).