SUN HYDRAULICS
RPKEKAN

***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 RPKEKAN (RPKEKAN) is a fast-acting, pilot-operated, balanced piston relief cartridge designed to protect hydraulic components from pressure transients. This normally closed, pressure-limiting valve opens quickly when the inlet port pressure reaches its set point, directing flow to the tank port and limiting further pressure increase. It features a low-pressure rise versus flow rate and operates with remarkable speed. With its functional interchangeability across 2-port relief cartridges of similar frame sizes, it can handle maximum pressures at port 2, making it suitable for cross-port relief circuits. However, spool leakage should be considered in such applications. The main stage orifice is safeguarded by a 150-micron stainless steel screen. Due to potential spool leakage, this valve is not suitable for load-holding applications. The back pressure on the tank port directly affects the valve setting at a 1:1 ratio. It incorporates Sun's floating style construction to prevent internal component binding due to excessive torque or machining variances. The RPKEKAN fits into a T-18A cavity and belongs to Series 4, with a capacity of up to 200 gpm (760 L/min). It can withstand a maximum operating pressure of 5000 psi (350 bar), with typical response times around 2 ms and maximum valve leakage at specified conditions being minimal at 5 in\u00b3/min (80 cc/min). The adjustment range allows for up to five clockwise turns to increase settings. Installation requires specific torque values for both the valve and locknut components. Weighing in at approximately 2.50 lbs (1.15 kg), it includes options for Viton seal kits if needed.