SUN HYDRAULICS
RPKEKQN

***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 RPKEKQN (RPKEKQN) is a fast-acting, pilot-operated, balanced piston relief cartridge designed to protect hydraulic components from pressure transients. This normally closed valve opens quickly when the pressure at inlet port 1 reaches its set value, diverting flow to tank port 2 to limit pressure rise. It features low pressure rise versus flow and is characterized by rapid response times, typically around 2 milliseconds. The RPKEKQN valve is suitable for cross-port relief circuits and can handle maximum pressures at port 2; however, it should not be used in load-holding applications due to spool leakage. The main stage orifice is safeguarded by a 150-micron stainless steel screen. This relief cartridge incorporates Sun's floating style construction to minimize internal binding due to installation torque and machining variations, ensuring reliable performance. It fits into a Cavity T-18A and belongs to the Series 4 with a capacity of up to 200 gpm (760 L/min), while the maximum operating pressure reaches up to 5000 psi (350 bar). Valve leakage remains minimal at approximately 5 in\u00b3/min (80 cc/min) under specific conditions. The adjustment mechanism allows for fine-tuning with up to five clockwise turns for increased settings, and proper installation requires specific torque values for both the valve and locknut components. This product's design makes it ideal for applications requiring rapid pressure relief without compromising on safety or reliability. Its robust construction ensures dependable operation in demanding hydraulic systems where quick response times are critical.