The Circor Instrumentation Alternative Fuels Industry line of products and services encompasses several operating entities. Aerodyne Controls; Circle Seal Controls; Hoke, Inc.; GO regulator and Panels Plus. The high performance demands of products that are safely able to handle the severe demands of high pressures and the rigors of vehicle usage with both natural gas and Hydrogen require high quality products.

The companies within the Circor Instrumentation group are specialist in designing, manufacturing and assembling extremely high quality products.

Circor Instrumentation specializes in developing products that are able to perform under pressure. Our products and services are at the forefront of the Alternative Fuels Industry. Circle Seal Controls Thermal relief valves have rapidly become the industry standard for CNG. Hoke Ball Valves meet the demands of high-pressure gas shut off and dispensing. Aerodyne Controls is meeting the challenge to make products smaller and higher performing. GO Regulator products are moving into the demanding world of Hydrogen gas control for Fuel Cells and Panels Plus continues to fabricate high quality custom systems and sub systems for CNG.