SUN HYDRAULICS
SQBBCNV

***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 SQBBCNV (SQBBCNV) is a kickdown sequence valve designed for hydraulic systems where pressure management is crucial. This valve activates fully open when the pressure at inlet port 1 surpasses the preset threshold, allowing unrestricted flow from port 1 to port 2. The valve's operation is contingent on the pressure balance between these ports, and it will remain open as long as the inlet pressure exceeds that at port 2. To reset, the inlet pressure must drop below the set point, flow must stop, and pressures at both ports must equalize. Notably, this valve should not be used in load-holding scenarios due to its design characteristics. The SQBBCNV features a maximum operating pressure of 5000 psi (350 bar) and a capacity of 7.5 gpm (30 L/min). It incorporates Sun's floating style construction to mitigate internal binding risks caused by installation torque or machining discrepancies. The valve's response time is typically around 25 milliseconds with minimal leakage under specified conditions. Adjustments to the valve setting are made via an internal hex screw with several clockwise turns required to increase the setting. Physically and functionally interchangeable with other three-port sequence cartridges of similar frame size, this model ensures flexibility in system design. However, it is intended for use on the actuator side of systems; if used on the pump side, pump flow must be halted for resetting purposes. The SQBBCNV embodies robust engineering suitable for demanding hydraulic applications where precise control and reliability are paramount.