Manual override solenoid valve for military helicopterLee Products developed a solenoid valve which has a manual override capability for typical applications in engine cowl door systems and cargo door actuators on commercial aircraft and in rotor blade fold units on military helicopters. Initially available in a single coil normally closed configuration for 4,000psig systems, the valve can be designed with single or dual coils in normally closed or normally open configurations for operation in 3,000 or 5,000 psi systems.
Lee miniature piloting solenoid valves combine space and weight savings with superior performance and reliability in demanding applications such as aerospace hydraulic and fuel systems, oil exploration/production, car racing, and other challenging high pressure applications. Incorporating innovative design and advanced technology, they have set a new benchmark in space and weight savings and in power consumption. The lightest version weighs under 0.14 lbs and uses only 7.8W at 28V DC. Each subcomponent and manufacturing process has been optimised to ensure a design with the highest performance, longest life, and highest reliability - all within the smallest envelope possible.
The valves feature the patented Lee MultiSeal which eliminates O-rings and back-up rings, and simplifies port layout by allowing two ports to be sealed on the same centreline. This allows the hydraulic portion of the valve to be smaller, resulting in a compact, low-profile installation.
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