SUN HYDRAULICS
RPEECNV

***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 RPEECNV (RPEECNV) is a fast-acting, pilot-operated, balanced piston relief cartridge designed for hydraulic systems. These normally closed, pressure-limiting valves are engineered to protect hydraulic components from pressure transients by opening to the tank port when the inlet port pressure reaches the valve setting. The RPEECNV offers rapid opening and closing capabilities, although this comes at the expense of smoothness. With a maximum operating pressure of 5000 psi (350 bar) and a capacity of 25 gpm (95 L/min), these valves are suitable for applications requiring quick response times, typically around 2 milliseconds. The valve's main stage orifice is shielded by a 150-micron stainless steel screen, ensuring durability and reliability in demanding environments. It is important to note that while these cartridges can accept maximum pressure at port 2 and are suitable for cross-port relief circuits, they are not recommended for load-holding applications due to spool leakage. Additionally, back pressure on the tank port directly adds to the valve setting at a 1:1 ratio. The RPEECNV incorporates Sun's floating-style construction to minimize internal part binding due to excessive installation torque or machining variations. Adjustments can be made using W or Y controls throughout its full range unless a special setting is specified. The valve features a hex size of 7/8 in. (22.2 mm) and requires an installation torque of 30-35 lbf ft (41-47 Nm). The adjustment screw has an internal hex size of 5/32 in. (4 mm), while the locknut hex size is 9/16 in. (15 mm), with a torque requirement of 80-90 lbf in. (9-10 Nm). The model weighs approximately .30 lb (.15 kg) and uses Viton seals with seal kit number: 990010006.