SUN HYDRAULICS
RPESYQN

***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 RPESYQN (Material Number: RPESYQN) is a pilot-operated, balanced poppet relief cartridge valve designed for precise pressure regulation. This normally closed valve opens to the tank port when the inlet pressure reaches the set threshold, effectively throttling flow to maintain desired pressure levels. It features a smooth and quiet operation with quick response times and low pressure rise relative to flow, making it suitable for load holding applications. The design incorporates a 150-micron stainless steel screen protecting the main stage orifice, ensuring reliability even in environments with oil-borne contaminants or varying oil temperatures. The valve can withstand maximum pressure at port 2 and is ideal for cross-port relief circuits. Its construction minimizes internal binding due to excessive installation torque or machining variations. The RPESYQN model can be adjusted throughout its range using W or Y controls, with an option for special settings that define the maximum setting of the valve. It operates at a maximum pressure of 5000 psi (350 bar) and has a capacity of 25 gpm (95 L/min). With a typical response time of 7 milliseconds and minimal leakage at standard conditions, this valve is both efficient and reliable. Installation requires specific torque values, ensuring secure fitting without risk of damage during setup. The compact design weighs just 0.30 lb (0.15 kg), making it easy to integrate into various hydraulic systems where precise pressure control is critical.