SUN HYDRAULICS
RVEDWYV

***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 RVEDWYV (RVEDWYV) is a ventable, pilot-operated, balanced piston relief cartridge with an external drain, designed as a normally closed pressure regulating valve. This product becomes operational when the pressure at the inlet port reaches the valve setting, allowing it to open to the tank port and throttle flow to regulate pressure. It includes a vent port for remote control by other pilot or two-way valves and a drain port that ensures insensitivity to back pressure. Known for its accuracy and smooth operation, this valve is characterized by low pressure rise versus flow and moderately fast response times. It accepts maximum pressure at port 2, making it suitable for use in cross-port relief circuits with consideration for spool leakage. The main stage orifice is protected by a 150-micron stainless steel screen, though it's not suitable for load-holding applications due to spool leakage. The pressure at port 4 adds directly to the valve setting at a 1:1 ratio and should not exceed 5000 psi (350 bar). Cartridges with EPDM seals are intended for systems using phosphate ester fluids; exposure to petroleum-based fluids will damage these seals. The RVEDWYV model features Sun's floating style construction, minimizing internal part binding risks due to excessive installation torque or machining variations. This valve has a capacity of 30 gpm (120 L/min) and operates under a maximum pressure of 5000 psi (350 bar). Factory settings are established at 4 gpm (15 L/min), with control pilot flow ranging from 10-15 in\u00b3/min (0.16-0.25 L/min). The typical response time is around 10 ms, with maximum valve leakage rated at approximately 3 in\u00b3/min under specific conditions. The adjustment mechanism allows up to five clockwise turns to increase settings, with specific installation torque requirements provided for optimal performance.