SUN HYDRAULICS
RVESCAV

***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 RVESCAV (Material Number: RVESCAV) is a ventable, pilot-operated, balanced-poppet relief cartridge designed for pressure regulation in hydraulic systems. This normally closed valve begins to open when the inlet port 1 pressure reaches the valve setting, allowing flow to tank port 2 to regulate pressure. The valve includes a vent port 3 for remote control via other pilot or 2-way valves. Notably accurate and featuring low pressure rise versus flow, these valves operate smoothly and quietly with moderate speed. Due to internal modulating, they are resistant to issues like cavitation-induced noise and manifold erosion. These cartridges are suitable for load-holding applications as long as any valving on vent port 3 exhibits zero leakage. They can handle maximum pressure at port 2, making them ideal for cross-port relief circuits. A remote pilot relief on the vent port can control the valve below its preset threshold. The design maintains performance despite varying oil temperatures and contamination levels, with a main stage orifice protected by a 150-micron stainless steel screen. Backpressure on tank port 2 directly adds to the valve setting at a 1:1 ratio. Incorporating Sun's floating style construction minimizes risks of internal part binding due to excessive installation torque or machining variations. With a capacity of up to 25 gpm (95 L/min) and maximum operating pressure of 5000 psi (350 bar), this model ensures robust performance in demanding environments. The factory pressure settings are established at flows of 4 gpm (15 L/min), with typical response times around 2 ms and minimal leakage upon reseat. Installation requires specific torques for optimal performance, ensuring reliability in various hydraulic applications.