SUN HYDRAULICS
RSHSKQN

***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 RSHSKQN (RSHSKQN) is a pilot-operated, balanced poppet sequence valve designed to supply a secondary circuit with flow once the pressure at the inlet port exceeds the valve setting. This valve regulates pressure at port 1 relative to the drain port, remaining unaffected by back pressure at port 2 up to the valve setting. It can replace 2-port relief valves if there is pressure in the return line. All three-port sequence cartridges are interchangeable, offering identical flow paths and cavity sizes for a given frame size. The valve's pilot flow increases as inlet pressure rises above the setting, and its main stage orifice is protected by a 150-micron stainless steel screen. With a maximum operating pressure of 5000 psi (350 bar), this valve is suitable for load-holding applications and cross-port relief circuits due to its ability to accept maximum pressure at port 2. The Sun floating style construction minimizes internal part binding risks due to excessive torque or machining variations. The RSHSKQN has a capacity of 60 gpm (240 L/min) with factory settings established at 4 gpm (15 L/min). It features a response time of approximately 10 ms and allows minimal leakage upon reseat. The adjustment mechanism requires five clockwise turns to increase settings, with specific hex sizes for valve installation and adjustment screws. Weighing approximately 1.50 lb (0.70 kg), it includes Viton seal kits for optimal performance in various hydraulic systems, making it an ideal choice for precise pressure control applications.