SUN HYDRAULICS
RPIEKCV

***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 RPIEKCV (RPIEKCV) is a fast-acting, pilot-operated, balanced piston relief cartridge designed to protect hydraulic components from pressure transients. These normally closed, pressure-limiting valves quickly open and close to throttle flow and limit pressure rise when the inlet port reaches the valve setting. Notably, these cartridges have a low pressure rise versus flow and are characterized by their rapid response time of approximately 2 milliseconds. With a maximum operating pressure of 5000 psi (350 bar) and a capacity of 100 gpm (380 L/min), this valve is suitable for cross-port relief circuits, although spool leakage should be considered in such applications. The main stage orifice is safeguarded by a 150-micron stainless steel screen, ensuring durability and performance stability. However, this valve is not recommended for load-holding applications due to potential spool leakage. It features Sun's floating style construction to prevent internal parts binding from excessive installation torque or cavity machining variations. The valve incorporates several adjustable components: the adjustment screw has an internal hex size of 5/32 inches (4 mm), while the locknut has a hex size of 9/16 inches (15 mm) with a torque range of 80-90 lbf-in (9-10 Nm). Installation requires a torque between 150-160 lbf-ft (203-217 Nm). This model weighs approximately 1.20 lb (0.55 kg) and uses Viton seal kits for enhanced sealing capabilities.