Superior Boiler, Hutchinson, Kan., completed its 20,000th board-registered boiler. The two-pass Wichita steam boiler includes a 2,000-hp capacity and a design pressure of 200 psi steam. The 13’ tall wetback boiler will be delivered to a Midwest soybean processing facility, where it will be used to create process steam as it creates domestic, renewable energy for the biodiesel industry.

The National Board of Boiler and Pressure Vessel Inspectors was established in 1919 to “formulate uniform qualification and examination requirements for boiler inspectors to be used by all states.” Its goal was to regulate safety and quality standards used for boilers and pressure vessels and to standardize them across state lines.

The first National Board law was passed in Kansas in 1953. In May 1954, Superior Boiler, then known as Superior Boiler & Supply Co., began manufacturing a C-1 model boiler for Tomlinson Cleaners in Stafford, Kan. On October 7, 1954, the two-pass steam boiler was issued a National Board #1 registration number. Though it was not the first boiler Superior had built, it was the first required to be registered to the National Board following the passage of the law in Kansas. The 10-hp boiler had a small capacity compared to many boilers today but was an average-sized unit at the time. The unit remained in operation for more than 40 years and was still in working order at the time Tomlinson Cleaners closed in the early 2000s.