water-leg

Boilers utilizing water-leg construction are not ordinarily provided with mud drums.

Steam, Its Generation and Use

Repairs in water-leg boilers are difficult at best and frequently unsatisfactory when completed.

Steam, Its Generation and Use

Were such an explosion to occur, it would still be localized to a much larger extent than in the case of a water-leg boiler and the header construction thus almost absolutely localizes any danger from such a cause.

Steam, Its Generation and Use

The use of water-leg construction ordinarily requires the flanging of large plates, which is difficult, and because of the number of heats necessary and the continual working of the material, may lead to the weakening of such plates.

Steam, Its Generation and Use

In water-leg boilers, the use of such flat-stayed surfaces under pressure presents difficulties that are practically unsurmountable.

Steam, Its Generation and Use

In boilers using water-leg construction, there is danger of defective circulation, leaks are common, and unsuspected corrosion may be going on in portions of the boiler that cannot be inspected.

Steam, Its Generation and Use

In boilers using a water-leg construction, while the danger from explosion will be largely limited to the tubes, there is the danger, however, that such legs may explode due to the deterioration of their stays, and such an explosion might be almost as disastrous as that of a shell boiler.

Steam, Its Generation and Use

In boilers utilizing water-leg construction, on the other hand, the construction is rigid, giving rise to serious internal strains and the method of support ordinarily made necessary by the boiler design is not only unmechanical but frequently dangerous, due to the fact that proper provision is not made for expansion and contraction under temperature variations.

Steam, Its Generation and Use