SUN HYDRAULICS
RSFSKWV

***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 RSFSKWV (RSFSKWV) is a pilot-operated, balanced poppet sequence valve designed to supply a secondary circuit with flow once the inlet port pressure exceeds the valve setting. This model controls pressure at port 1 relative to the drain port 3, remaining unaffected by back pressure at port 2 up to the valve's setting. It can regulate pressure in place of two-port relief valves when there's return line pressure. The RSFSKWV is interchangeable with other three-port sequence cartridges of the same frame size, offering a consistent flow path and cavity compatibility. The pilot flow increases as the inlet pressure rises above the setting relative to the drain pressure, with a main stage orifice protected by a 150-micron stainless steel screen. It supports maximum pressures up to 5000 psi (350 bar) and is suitable for load-holding applications due to its internal modulation that mitigates cavitation issues like noise and erosion. The valve can handle maximum pressure at port 2, making it ideal for cross-port relief circuits. Featuring Sun's floating style construction, it minimizes internal binding risks due to installation torque or machining variations. With a capacity of 30 gpm (120 L/min) and factory settings established at 4 gpm (15 L/min), this valve offers typical response times of 10 ms and minimal leakage upon reseat at 10 drops/min (0.7 cc/min). Adjustments are made via an internal hex screw, with a locknut ensuring secure settings. Weighing in at .50 lb (.25 kg), this model also includes Viton seal kits for enhanced durability and performance in demanding applications.