SUN HYDRAULICS
RPCCCQV

***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 RPCCCQV (Material Number: RPCCCQV) is a pilot-operated, balanced-piston relief cartridge designed for precise pressure regulation in hydraulic systems. This normally closed valve begins to open when the inlet port pressure reaches the pre-set limit, directing flow to the tank port to maintain consistent pressure levels. Known for its accuracy and low-pressure rise versus flow characteristics, this valve operates smoothly and quietly, offering moderate response speed. It is compatible with cross-port relief circuits but should be noted that spool leakage may occur, making it unsuitable for load-holding applications. The valve can handle maximum pressures of up to 5000 psi (350 bar) at port 2 and features a minimum setting of 75 psi (5 bar) across all spring ranges. The main stage orifice is safeguarded against contamination, ensuring reliable performance. The RPCCCQV incorporates Sun's floating style construction to minimize internal binding due to installation torque or machining variations. It supports a flow capacity of 12 gpm (45 L/min) with factory pressure settings established at 4 gpm (15 L/min). Installation requires a torque between 20-25 lbf ft (27-33 Nm), and adjustments can be made via an internal hex screw with a locknut for security. This model weighs approximately .20 lb (.10 kg) and uses Viton seals for optimal compatibility with phosphate ester fluids, although exposure to petroleum-based substances should be avoided as it could damage the seals. Designed for flexibility and durability, this relief cartridge is a reliable choice for managing hydraulic pressures in various applications where precise control is necessary.