SUN HYDRAULICS
SQJBKEN

***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 SQJBKEN (Material Number: SQJBKEN) is a kickdown sequence valve designed to manage hydraulic flow by opening completely and maintaining an open state once the inlet port 1 pressure surpasses the valve setting, allowing unrestricted flow from port 1 to port 2. This valve is particularly suitable for applications on the actuator side of a hydraulic system, as it requires cessation of flow for resetting. It features a unique floating style construction that minimizes internal part binding due to excessive torque or machining variations. The main stage orifice is safeguarded by a 150-micron stainless steel screen, ensuring durability and reliability. The SQJBKEN model has a capacity of up to 120 gpm (480 L/min) and operates at a maximum pressure of 5000 psi (350 bar), with typical response times of 25 ms. It is designed with three interchangeable ports for versatile integration into various systems but is not recommended for load-holding applications. The adjustment mechanism allows up to 5.5 clockwise turns to increase the setting, while installation requires torque between 350 - 375 lbf ft (474 - 508 Nm). Pressure at port 3 should not exceed the valve setting by more than a direct additive ratio of 1:1 and should remain below the maximum threshold of 5000 psi. This model weighs approximately 3.10 lb (1.40 kg) and uses Viton seals for enhanced performance in demanding environments. The valve's design ensures minimal leakage, with maximum leakage rates at just 5 in\u00b3/min (80 cc/min) at standard viscosity levels.