SUN HYDRAULICS
RPIEQEN

***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 RPIEQEN (RPIEQEN) 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 swiftly to manage pressure spikes by throttling flow from the inlet port to the tank port once the set pressure is reached. It features low pressure rise versus flow and boasts rapid response times, making it highly efficient in applications requiring quick relief actions. The valve is physically and functionally interchangeable with other 2-port relief cartridges of similar frame size, facilitating easy integration into existing systems. Its design allows for maximum pressure acceptance at port 2, making it suitable for cross-port relief circuits, though spool leakage should be considered in such applications. The main stage orifice is safeguarded by a 150-micron stainless steel screen, ensuring durability and reliability under high-pressure conditions up to 5000 psi (350 bar). However, it's not recommended for load-holding applications due to potential spool leakage. The valve incorporates Sun's floating style construction to reduce internal binding risks caused by installation torque or machining variations. With a capacity of 100 gpm (380 L/min) and typical response time of 2 ms, this cartridge provides efficient performance while maintaining minimal leakage at specified conditions. It also offers adjustable settings through a screw mechanism allowing up to five full turns for increased precision in operation adjustments.