SUN HYDRAULICS
SQBBLWV

***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 SQBBLWV (SQBBLWV) is a kickdown sequence valve designed to open completely and maintain an unrestricted flow path from port 1 to port 2 once the inlet pressure at port 1 surpasses the preset valve setting. This valve is particularly useful in applications where maintaining an open flow path is crucial, provided that the pressure at port 1 remains higher than at port 2. The valve will reset only when the pressure at port 1 drops below its setting, flow ceases, and pressures at ports 1 and 2 equalize or reverse. It should not be used in load-holding applications due to its design characteristics. The SQBBLWV features a maximum operating pressure of 5000 psi (350 bar) and a response time typically around 25 milliseconds. It has a capacity of handling up to 7.5 gallons per minute (30 liters per minute). The valve's construction incorporates Sun's floating style to reduce internal binding risks due to excessive torque or machining variations. This model is interchangeable with other three-port sequence cartridges within the same frame size, offering flexibility in various setups. Installation requires attention to specific torque settings: the valve installation torque ranges between 20-25 lbf ft (27-33 Nm), with an adjustment screw internal hex size of 5/32 inches (4 mm). The locknut hex size is set at 9/16 inches (15 mm), requiring a locknut torque between 80-90 lbf in (9-10 Nm). The product weighs approximately .30 lb (.15 kg) and uses Viton seal kits for durability. This configuration ensures reliable performance for hydraulic systems requiring precise sequencing control without compromising on operational efficiency.