SUN HYDRAULICS
RVESLAN

***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 RVESLAN (RVESLAN) is a ventable, pilot-operated, balanced-poppet relief cartridge designed as a pressure-regulating valve. It functions by remaining normally closed until the pressure at inlet port 1 reaches the predetermined valve setting, upon which it opens to tank port 2 to throttle flow and regulate pressure. This model features a vent port 3 that allows for remote control via other pilot or two-way valves. Known for its accuracy and smooth operation, the RVESLAN is engineered to minimize noise and manifold erosion due to cavitation. It is suitable for load-holding applications, provided any valving on the vent port 3 is zero-leak. Additionally, it can handle maximum pressure at port 2, making it ideal for cross-port relief circuits. The valve can be controlled below its own setting through a remote pilot relief on port 3. This model demonstrates resilience against varying oil temperatures and contamination. Its main stage orifice is shielded by a 150-micron stainless steel screen to ensure durability. Notably, back pressure on tank port 2 adds directly to the valve setting at a 1:1 ratio. The Sun floating style construction reduces the risk of internal part binding due to excessive torque or machining variations. Specifications include a cavity T-2A series with a capacity of up to 25 gpm (95 L/min), maximum operating pressure of 5000 psi (350 bar), and response time typically around 2 ms. The valve's leakage at reseat is minimal at approximately 10 drops/min (0.7 cc/min). Installation requires specific torque settings and adjustments using designated hex sizes for optimal performance and reliability in various hydraulic systems.