SUN HYDRAULICS
RPESCCV

***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 RPESCCV (Material Number: RPESCCV) is a pilot-operated, balanced-poppet relief cartridge designed for precise pressure regulation. This normally closed valve opens to the tank port when the inlet pressure reaches the setpoint, effectively throttling flow to maintain consistent pressure levels. It is noted for its accuracy, smooth operation, and rapid response time of approximately 7 milliseconds. The valve handles maximum pressures of up to 5000 psi (350 bar) and has a capacity of 25 gpm (95 L/min). It features a main stage orifice safeguarded by a 150-micron stainless steel screen, making it relatively insensitive to oil temperature variations and contamination. The design incorporates Sun's floating style construction, which minimizes internal binding due to excessive installation torque or machining variations. This cartridge is suitable for load-holding applications and cross-port relief circuits, as it accepts maximum pressure at port 2. Backpressure on the tank port is directly additive to the valve setting at a 1:1 ratio. The RPESCCV model supports adjustment through W or Y controls, with or without special settings, allowing full-range adjustability or preset maximum settings as needed. With minimal leakage rates and robust construction, this valve provides reliable performance in demanding hydraulic systems. Installation specifications include a hex size of 7/8 inch (22.2 mm), installation torque between 30-35 lbf ft (41-47 Nm), and an adjustment screw internal hex size of 5/32 inch (4 mm). The model weighs approximately .30 lb (.15 kg) and utilizes Viton seal kits for optimal sealing performance.