SUN HYDRAULICS
SQFBMDN

***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 SQFBMDN (Material Number: SQFBMDN) is a versatile kickdown sequence valve designed to facilitate efficient flow control in hydraulic systems. This valve is engineered to kick completely open and maintain an unrestricted flow path from port 1 to port 2 when the inlet pressure at port 1 surpasses the valve's preset threshold. It remains open as long as the inlet pressure exceeds that of port 2, ensuring continuous operation. The valve resets only when the pressure at port 1 drops below its setting, flow ceases, and pressure at port 2 meets or exceeds that of port 1. Notably, all three-port sequence cartridges are interchangeable within their frame size, offering flexibility in various applications. This model should not be used in load-holding scenarios due to its design characteristics. It features a main stage orifice protected by a durable 150-micron stainless steel screen and can handle pressures up to 5000 psi (350 bar) at port 3, which directly adds to the valve setting at a 1:1 ratio. The valve is intended for use on the actuator side of systems where flow cessation is necessary for reset; if applied on the pump side, pump flow must halt for resetting. The SQFBMDN incorporates Sun's floating style construction, minimizing internal part binding risks due to excessive torque or machining variations. It operates with a capacity of up to 30 gpm (120 L/min) and features a rapid response time of approximately 25 ms. The valve's maximum leakage rate stands at 3 in\u00b3/min (50 cc/min), ensuring minimal fluid loss during operation. Installation requires specific torques for both the valve body and adjustment components, ensuring secure and reliable setup.