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Solenoid Valves

Solenoid Valves for Aerospace & Defense

A New Benchmark in Space and Weight Savings

Lee miniature piloting solenoid valves combine space and weight savings with superior performance and reliability in demanding applications such as aerospace hydraulic, fuel, and pneumatic systems. Incorporating both innovative design and advanced technology, Lee solenoid valves have set a new benchmark in space and weight savings and power consumption. The lightest version weighs under 0.14 lbs. (2.3 oz.) and uses only 7.8 Watts at 28 Vdc. Each subcomponent and manufacturing process has been optimized to create a proven, low-leak valve design with the highest performance, longest life, and highest reliability – all within the smallest envelope possible.

The Lee Company has achieved these space and power savings via the use of the Lee MultiSeal®, a concept that eliminates conventional O-rings in favor of a cylindrical polyamide-imide element. This element simplifies the port layout and offers significant space savings. Before delivery, each valve endures rigorous acceptance testing to ensure its reliability. Therefore, Lee solenoid valves may represent a departure from traditional solenoid designs, but they’ll never represent a risk.

Although The Lee Company offers a broad line of solenoid valves, we frequently provide custom solutions. Fortunately, our custom designs are as reliable as our standard models. The Lee Company is vertically integrated, owning the entire production process throughout the life of our components, down to the smallest detail – we even wind our own coils. This lets us create customized valves that will operate in extreme environments, accommodate your unique electrical requirements, or accept a modified hydraulic interface. Our global sales force of degreed engineers can provide fast, accurate technical assistance to help you find the best solution for your fluid control problems.

Lee Miniature Piloting Solenoid Valves

Lee miniature piloting solenoid valves are the most compact powered components we offer, available in a configuration just 0.875 of an inch in diameter and weighing less than 0.14 lbs. Their threaded bodies are easy to install and maintain and are available for system pressures up to 5000 psi. Meanwhile, the efficient coil design requires power levels as low as 7.8 Watts at 28 Vdc. Many options are available, including a single or dual coil configuration, 2-way or 3-way porting, a normally open or normally closed position, and a customizable electrical interface.

360° Porting Piloting Solenoid Valves

These configurations incorporate the same advantages as our standard solenoid valves in terms of weight and compactness, but their unique Lee MultiSeal® design provides omnidirectional porting, allowing greater flexibility and potential weight savings when designing the housing. These valves are also available in all our different configurations, including a single or dual coil configuration, a normally open or normally closed position, and a lead wire front, lead wire rear, or connector.

Zero Leak Solenoid Valves

In applications where zero leakage is critical, this design incorporates a polyamide-imide seal that’s leak-tight in a one-minute test using clean dry nitrogen. Otherwise, this component retains all the advantages of a standard Lee miniature piloting solenoid valve. It’s available standard in a single-coil package for 3000 psi operating systems. Custom configurations optimized for higher operating pressures or for wide operating pressure ranges are available upon request.

Latching Solenoid Valves

Lee latching solenoid valves are the ideal solution for power-sensitive applications. By incorporating permanent magnets into the coil design, these solenoid valves offer a dramatic reduction in overall power consumption, particularly when operating with extended “ON” periods. Unlike traditional designs that require continuous voltage to energize the valve from its natural state, these latching solenoid valves require only a momentary pulse of less than a Joule to switch to and remain in-state.

High Flow Solenoid Valves

For more demanding applications, our high flow solenoid valves are available in 2-way, 200 Lohms, and 3-way, 300 Lohms configurations. Both are two-stage poppet designs in a miniature package. These valves are available in normally open and normally closed and single or dual coil configurations for 3000 psi system pressures.

Support & Resources

Support & Resources from a Team that Speaks Your Language

Partner with The Lee Company and get much more than just a supplier of top-quality fluid control products. Our reliable technical support team is available every step of the way to help you find solutions, maximize productivity, and drive efficiency across your operations. Check out these aerospace and defense-specific resources to learn more.