SUN HYDRAULICS
SQFBCBV

***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 SQFBCBV (Material Number: SQFBCBV) is a kickdown sequence valve designed to kick completely open and remain open when the pressure at inlet port 1 surpasses the valve setting, providing an unrestricted flow path from port 1 to port 2. This valve is intended for use on the actuator side of hydraulic systems, as it requires flow cessation through the valve to reset. It incorporates a floating style construction to minimize internal binding due to excessive installation torque or machining variations. The valve features a main stage orifice protected by a 150-micron stainless steel screen and should not be used in load-holding applications. Pressure at port 3 directly adds to the valve setting at a 1:1 ratio, with a maximum limit of 5000 psi (350 bar). The SQFBCBV is functionally interchangeable with other three-port sequence cartridges within the same frame size, offering consistent flow paths and cavity compatibility. It has a capacity of up to 30 gpm (120 L/min) and operates optimally with a factory pressure setting established at the kickdown point, reaching a maximum operating pressure of 5000 psi (350 bar). Its response time is typically around 25 ms, with minimal leakage up to 3 in\u00b3/min (50 cc/min) at 110 SUS (24 cSt). The adjustment for increasing settings involves five clockwise turns, with installation torque ranging between 45-50 lbf-ft (61-68 Nm). The model weighs approximately .50 lb (.25 kg) and comes with an optional Viton seal kit for enhanced performance.