SUN HYDRAULICS
RVESCNN

***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 RVESCNN (Material Number: RVESCNN) is a ventable, pilot-operated, balanced poppet relief cartridge designed for precise pressure regulation in hydraulic systems. This normally closed valve begins to open to the tank port when the inlet port pressure reaches the pre-set level, effectively throttling flow to maintain consistent pressure. It features a vent port that allows remote control via other pilot or 2-way valves, making it suitable for load-holding applications provided that any valving on the vent port is zero leak. The valve can handle maximum pressure at port 2 and is ideal for cross-port relief circuits. It offers excellent insensitivity to oil temperature variations and contamination, while its main stage orifice is safeguarded with a 150-micron stainless steel screen. Notably, back pressure on the tank port is directly additive to the valve setting at a 1:1 ratio. The RVESCNN utilizes Sun's floating style construction to reduce risks of internal component binding due to excessive installation torque or machining variances. It has a cavity size of T-2A and can handle up to 25 gpm (95 L/min) with an operating pressure of up to 5000 psi (350 bar). Control pilot flow ranges from 15-20 in\u00b3/min (0.25-0.33 L/min), with typical response times around 2 ms and maximum valve leakage at reseat limited to 10 drops/min (0.7 cc/min). The adjustment mechanism allows for five clockwise turns to increase settings, and it requires specific torques for installation and adjustment components. This model weighs approximately 1.60 lb (0.70 kg) and comes with a Viton seal kit option available under part number 990402006.