SUN HYDRAULICS
SQHBCEV

***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 SQHBCEV (SQHBCEV) is a highly efficient kickdown sequence valve designed for hydraulic systems. This valve is engineered to open completely and maintain an unrestricted flow path from port 1 to port 2 once the inlet pressure exceeds the set threshold, with the setting being relative to the drain port 3. The valve stays open as long as the inlet pressure surpasses the outlet pressure, and it resets when these conditions reverse and flow ceases. It is crucial that this valve is not used in load-holding applications due to its operational characteristics. The SQHBCEV model features a 150-micron stainless steel screen protecting its main stage orifice, ensuring reliable performance. It incorporates Sun's floating style construction, which minimizes binding risks due to installation torque and machining variations. With a maximum operating pressure of 5000 psi (350 bar) and a capacity of 60 gpm (240 L/min), it suits high-pressure hydraulic applications on the actuator side of systems. The valve's response time is typically around 25 milliseconds, with minimal leakage at specified conditions. Installation requires attention to specific torque settings: a valve installation torque of 150-160 lbf ft (203-217 Nm) and locknut torque of 80-90 lbf in (9-10 Nm). Adjustments are made via an internal hex screw, allowing for fine-tuning with up to five clockwise turns increasing the setting. The SQHBCEV is compatible with Viton seal kits for optimal sealing performance under various conditions. This model weighs approximately 1.50 lb (0.70 kg), making it lightweight yet robust enough for demanding applications where precise sequential control is necessary.