SUN HYDRAULICS
SQJBLCN

***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 SQJBLCN (SQJBLCN) is a high-performance kickdown sequence valve designed to manage hydraulic systems efficiently. This valve kicks completely open and remains open when the pressure at inlet port 1 surpasses the valve setting, allowing an unrestricted flow from port 1 to port 2. The pressure setting at port 1 is relative to drain port 3, and the valve will stay open as long as the inlet pressure exceeds the outlet pressure. To reset, the inlet pressure must drop below the set point, and flow from port 1 to port 2 must stop, with outlet pressure equal to or greater than inlet pressure. The SQJBLCN features a floating style construction that minimizes internal part binding due to excessive torque or machining variations. It includes a main stage orifice protected by a 150-micron stainless steel screen. The valve should not be used for load holding applications, and pressures at port 3 can directly add to the valve setting in a 1:1 ratio but should not exceed 5000 psi (350 bar). It is intended for use on the actuator side of hydraulic systems; if used on the pump side, pump flow must be halted for resetting. This model has a capacity of up to 120 gpm (480 L/min) with factory pressure settings established at its kickdown point. The maximum operating pressure is rated at 5000 psi (350 bar), with typical response times of about 25 ms and minimal leakage rates under specified conditions. Installation requires specific torque values for both the valve body and adjustment components. The SQJBLCN weighs approximately 3.10 lbs (1.40 kg) and utilizes Viton seals for enhanced performance in demanding environments.