SUN HYDRAULICS
SQFBMEV

***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 SQFBMEV (SQFBMEV) is a precision-engineered kickdown sequence valve designed for hydraulic systems where maintaining an unrestricted flow path is critical once a specified pressure threshold is exceeded. This valve activates when the inlet port 1 pressure surpasses its set value, allowing flow from port 1 to port 2, and remains open until the pressure at port 1 drops below the set point. The valve's design ensures it resets only when flow ceases and pressures equalize between ports. Notably, it's not recommended for load-holding applications due to its operational characteristics. The SQFBMEV features a robust construction with a main stage orifice protected by a 150-micron stainless steel screen, ensuring durability and reliability in demanding environments. It incorporates Sun's floating style construction to mitigate issues like internal part binding caused by excessive torque or machining variations. The valve can handle pressures up to 5000 psi (350 bar) and has a typical response time of 25 ms, making it suitable for rapid-response applications. This model is interchangeable with other three-port sequence cartridges within the same frame size, providing versatility in various system configurations. It's specifically intended for use on the actuator side of hydraulic systems; if used on the pump side, care must be taken to ensure pump flow ceases for resetting purposes. The valve\u2019s adjustment mechanism allows fine-tuning with up to five clockwise turns to increase settings, and it features secure installation with specified torque values for both the valve body and locknut. With a capacity of handling flows up to 30 gpm (120 L/min), this cartridge-style valve is lightweight at just .50 lb (0.25 kg), facilitating easy integration into hydraulic circuits where space and weight are considerations.