SUN HYDRAULICS
RVEDWBN

***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 RVEDWBN (RVEDWBN) is a ventable, pilot-operated, balanced piston relief cartridge with an external drain. It functions as a normally closed pressure-regulating valve that opens to the tank port 2 when the inlet port 1 pressure reaches the valve setting, thereby throttling flow to regulate pressure. These valves feature a vent port 3 for remote control and a drain port 4 to ensure insensitivity to back pressure. They are known for their accuracy, low-pressure rise versus flow, smooth and quiet operation, and moderate response speed. The RVEDWBN can handle maximum pressures at port 2 and is suitable for cross-port relief circuits; however, it is not recommended for load-holding applications due to spool leakage considerations. The main stage orifice is safeguarded by a 150-micron stainless steel screen. The valve's pressure setting can be directly influenced by the pressure at port 4 in a 1:1 ratio, with an upper limit of 5000 psi (350 bar). It incorporates Sun's floating style construction to reduce risks of internal part binding due to installation torque or machining variations. This model has a capacity of up to 30 gpm (120 L/min) and operates at maximum pressures of up to 5000 psi (350 bar). The 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. Adjustment settings can be modified using the internal hex screw or locknut provided, with specific torque requirements for installation and adjustment processes. The RVEDWBN model weighs approximately .70 lb (.30 kg) and supports EPDM seals suitable for phosphate ester fluids while being sensitive to petroleum-based substances.