Satellite Propellant Isolation Valve

Made by: The Lee Company 

Made in: Westbrook

Designed for: Satellite and spacecraft manufacturers

By the Numbers: 13,500 valves produced annually

The Lee Company’s Satellite Propellant Isolation Valve is a powerful example of how Connecticut innovation supports technologies the world relies on every day.

Manufactured in Connecticut for two decades, the miniature valve creates a critical seal between a satellite’s propellant tank and thruster feed system.

The seal preserves propellant and helps extend satellite life, ensuring mission success.

With more than 100 custom derivatives entirely designed and manufactured in Connecticut, the tiny component plays a critical role in scaling the space industry toward 58,000 satellites by 2030—supporting GPS, global communications, weather forecasting, and more.

It’s a small product with a massive impact.