SUN HYDRAULICS
RSFSCBV

***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 RSFSCBV (RSFSCBV) is a pilot-operated, balanced poppet sequence valve designed to supply a secondary circuit with flow once the inlet port 1 pressure exceeds the valve setting. This component controls the pressure at port 1 relative to the pressure at drain port 3, remaining unaffected by back pressure at port 2 up to the valve setting. It can regulate pressure in place of 2-port relief valves if there's pressure in the return line. The RSFSCBV is part of a series where all 3-port sequence cartridges are interchangeable in terms of flow path and cavity for a given frame size. As inlet pressure at port 1 rises above the valve setting relative to drain port 3, pilot flow continues to increase. This model features a main stage orifice protected by a 150-micron stainless steel screen and can handle pressures up to 5000 psi (350 bar) at port 3, which adds directly to the valve setting on a 1:1 basis. It's suitable for load-holding applications and cross-port relief circuits due to its maximum pressure acceptance at port 2. Additionally, its design minimizes issues like cavitation-related noise and manifold erosion by modulating internally within the cartridge. The RSFSCBV incorporates Sun's floating style construction, reducing risks of internal part binding from excessive installation torque or machining variations. It has a capacity of 30 gpm (120 L/min), with factory settings established at 4 gpm (15 L/min). The valve's typical response time is around 10 ms, and it has minimal leakage upon reseat. Installation requires specific torques for both the valve and locknut, ensuring secure placement and operation. The model weighs approximately .50 lb (.25 kg) and uses Viton seal kits for reliable performance under various conditions.