Keystone Manufacturing and Engineering

www.keystonemfg.net

Keystone Manufacturing and Engineering specializes in the design and production of custom wax-based thermal actuators, valves, and thermostatic assemblies. Serving industries such as aerospace, automotive, HVAC, and industrial manufacturing, the company provides precise motion control solutions that operate without external power. Their engineering team focuses on developing application-specific components, including thermal relief, balancing, and shutoff valves. The firm maintains an in-house manufacturing model, emphasizing domestic material sourcing and rigorous quality control protocols. They offer comprehensive support from initial system design through integration and testing.