Solon Manufacturing Co., located in Chardon, OH, is an ISO 9001:2005 certified manufacturer delivering proven and reliable bolting solutions through engineering and manufacturing Belleville springs and washers used in industrial applications worldwide.

Not just any washer, Solon Belleville Springs & Washers are conically shaped discs that will deflect or flatten at a given rate. The spring rate is usually extremely high, allowing the spring to produce large loads in small spaces. The springs solve for application challenges found in electrical connections, valves and flanges, petrochemical and refining operations, deep sea and offshore drilling equipment, and structural systems by maintaining the bolt preload, while minimizing the effects of differential thermal expansion, vibration, embedment relaxation, bolt yield/creep, and thermal cycling.

Bolted joints are critical to the safe operation of equipment and can be overlooked when it comes to performing preventive maintenance. Bolts tend to loosen over time due to a variety of factors and can cause equipment leaks or failures, injury, or other catastrophic events. Properly installed Solon Belleville Springs & Washers can reduce the loss of preload by a factor of five times or more and reduce the opportunity for a failure. Employing Solon Belleville Springs & Washers increases the elasticity of the bolted joints within the fastening system by maintaining consistent, and sufficient bolt preload—providing improved bolted joint reliability, preventing disruptive downtime, and protecting assets.

Our suite of application-specific product selection tools found in our online resource library, are designed to assist with bolted electrical, flange or valve application requirements. The tools allow for inputs relative to bolt size, material, and environmental factors and the calculated outputs include the most economical recommendation of Solon Belleville Springs & Washers, along with stacking arrangements and quantities, bolt load and torque, and a helpful installation visual to aid the design of the bolting system. Additional information such as videos, case studies, and white papers can also be found at www.solonmfg.com.