Opening Up Possibilities.
At Keystone, we believe in the power of innovation to transform possibilities into realities. For decades, we have been at the forefront of engineering excellence, designing and manufacturing cutting-edge thermal actuator solutions that elevate industries and exceed expectations. We excel where innovation meets precision.
Servicing Many Industries
A leader in thermal actuators, Keystone custom designs and engineers every thermal actuator, valve, and thermostatic assembly for each customer’s application, and every piece is inspected before leaving our facility.
Custom Designs & Manufacturing
One size does not fit all in the world of engineering. That’s why Keystone specializes in crafting custom solutions tailored to the specific needs of our clients. We collaborate closely with partners across a wide variety of industries, listening intently to their challenges and goals. Through this collaborative process, we design and manufacture solutions that not only solve immediate problems but open up possibilities for future innovations.
Family Owned American Made
Keystone is also proud to do our part to help here at home. A strong America will benefit Keystone, its employees, vendors, and the community. All raw materials used at Keystone are exclusively domestically made here in America. Keystone is proud to claim that 99% of the parts and materials used in our products are made in America.