SUN HYDRAULICS
RSDSCBV

***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 RSDSCBV (RSDSCBV) is a highly efficient pilot-operated, balanced poppet sequence valve designed to supply a secondary circuit with flow once the pressure at inlet port 1 surpasses the valve setting. This valve is engineered to control the pressure at port 1 relative to the drain port 3, remaining unaffected by back pressure at port 2 up to the valve setting. It can replace two-port relief valves in scenarios where there is pressure in the return line. These three-port sequence cartridges are interchangeable in terms of flow path and cavity size for a given frame size. The RSDSCBV features a main stage orifice protected by a 150-micron stainless steel screen and can handle pressures at port 3 up to 5000 psi (350 bar), making it suitable for load-holding applications. The internal modulation within the cartridge prevents issues like cavitation noise and manifold erosion, ensuring reliable performance. The valve's construction allows maximum pressure acceptance at port 2, making it ideal for cross-port relief circuits. Its floating style construction minimizes binding risks due to excessive installation torque or cavity machining variations. With a capacity of 15 gpm (60 L/min) and maximum operating pressure of 5000 psi (350 bar), this model has a typical response time of 10 ms and minimal leakage upon reseat, measured at only 10 drops/minute (0.7 cc/min). Installation requires specific torques: valve installation torque is between 30-35 lbf ft (41-47 Nm), while locknut torque ranges from 80-90 lbf in (9-10 Nm). The RSDSCBV weighs approximately .30 lb (.15 kg) and utilizes Viton seal kits for optimal performance in demanding applications.