SUN HYDRAULICS
RPESKQN

***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 RPESKQN (RPESKQN) is a pilot-operated, balanced-poppet relief cartridge designed for efficient pressure regulation in hydraulic systems. This valve remains normally closed and begins to open to the tank port when the inlet pressure reaches the pre-set value, ensuring precise and smooth control with minimal noise and wear due to cavitation. Notably, it can handle maximum pressure at port 2, making it suitable for cross-port relief circuits and load-holding applications. The cartridge is engineered to be relatively insensitive to changes in oil temperature and contamination, featuring an internal 150-micron stainless steel screen for protection. The RPESKQN valve incorporates Sun's floating style construction, reducing the risk of internal binding due to installation torque or machining variations. It offers a capacity of 25 gpm (95 L/min) with a maximum operating pressure of 5000 psi (350 bar). The response time is typically around 7 ms, and it maintains low leakage rates of up to 10 drops/min at 110 SUS (24 cSt). Users can adjust the valve settings with up to five clockwise turns, facilitated by an internal hex screw. The valve's compact design includes a hex size of 7/8 inch (22.2 mm) for installation torque between 30-35 lbf ft (41-47 Nm). This versatile relief cartridge is ideal for applications requiring reliable pressure regulation without compromising on performance or durability. It also offers flexibility in control settings through W and Y controls, which can be specified with or without special settings based on application needs.