SUN HYDRAULICS
SQJBLEV

***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 SQJBLEV (SQJBLEV) is a specialized kickdown sequence valve designed to open completely and maintain an open state once the inlet port 1 pressure exceeds the valve setting, allowing unrestricted flow from port 1 to port 2. This design is particularly suited for applications on the actuator side of hydraulic systems, where flow must cease for the valve to reset. The valve setting at port 1 is directly influenced by the drain port 3 pressure, which should not surpass 5000 psi (350 bar). It features interchangeable three-port sequence cartridges, making it versatile within its frame size. Not intended for load-holding applications, it incorporates a stainless steel screen safeguarding the main stage orifice. The valve's construction minimizes internal binding risks due to installation torque or machining variations. It supports a maximum flow capacity of 120 gpm (480 L/min) and operates at pressures up to 5000 psi (350 bar), with a typical response time of 25 ms. Installation requires specific torque settings for optimal performance, including a valve hex size of 1-5/8 inches and installation torque between 350-375 lbf ft (474-508 Nm). The adjustment screw has an internal hex size of 5/32 inches, while the locknut requires a torque of 80-90 lbf in (9-10 Nm). The model weighs approximately 3.10 lbs (1.40 kg) and uses Viton seal kits for reliable sealing performance.