staybolt

It is of interest to note, in the article on the evolution of the Babcock & Wilcox boiler, that staybolt construction was used in several designs, found unsatisfactory and unsafe, and discarded.

Steam, Its Generation and Use

When staybolt replacements are necessary, in order to get at the inner sheet of the water leg, several tubes must in some cases be cut out.

Steam, Its Generation and Use

In boilers utilizing in their design flat-stayed surfaces, or staybolt construction under pressure, corrosion and wear and tear in service tends to weaken some single part subject to continual strain, the result being an increased strain on other parts greatly in excess of that for which an allowance can be made by any reasonable factor of safety.

Steam, Its Generation and Use

In the case of certain staybolt failures the working pressure of a repaired boiler utilizing such construction will frequently be lowered by the insurance companies when the boiler is again placed in service.

Steam, Its Generation and Use