SUN HYDRAULICS
SQJBKCV

***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 SQJBKCV (SQJBKCV) is a sophisticated kickdown sequence valve designed to manage flow in hydraulic systems by kicking open and maintaining an open state once the inlet port 1 pressure surpasses the valve setting. This creates an unrestricted flow path from port 1 to port 2. The valve remains open as long as the inlet pressure exceeds that of port 2, requiring a reset by reducing port 1 pressure below its setting, stopping flow from port 1 to port 2, and ensuring equal or greater pressure at port 2 compared to port 1. Notably, this valve should not be used in load-holding applications. It 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 at a 1:1 ratio. Designed for use on the actuator side of systems, it incorporates Sun's floating style construction to minimize internal part binding due to installation torque or machining variations. The SQJBKCV has a capacity of up to 120 gpm (480 L/min), with factory pressure settings established at the kickdown point and a typical response time of approximately 25 ms. The maximum operating pressure is rated at 5000 psi (350 bar), with minimal leakage under specified conditions. Installation requires specific torques for both the valve body and locknut, ensuring secure placement within hydraulic systems. Additionally, it comes with a Viton seal kit for enhanced durability and compatibility with various hydraulic fluids.