Solon Manufacturing Co.

425 Center St
Chardon, OH 44024
Phone: 440-279-4794

Established in 1949, Solon Manufacturing Co., located in Chardon, Ohio, is a premier designer and manufacturer of Belleville springs and washers used in flange and valve applications worldwide. Solon Belleville Springs & Washers maintain sufficient bolt tension and resultant gasket stresses in high-temperature, high-pressure applications where safety and emission containment take priority. Utilizing Solon Belleville Springs & Washers in piping, refining and LNG operations eliminates the effects of differential thermal expansion (DTE), increases the elasticity of the bolting system, and reduce fugitive emissions. Properly installed Solon Belleville Springs & Washers are a cost-effective solution to mitigate the risk of process equipment leaks and failures. Solon's Quality Management System is certified to ISO 9001:2015. Detailed information surrounding Solon Belleville Springs & Washers, including industry and application specific products including cryogenic flange live loading, elevated temperature flange live loading, valve live loading and environmental bolting in the form of videos, case studies, white papers and product selection tools can be found on our website at