La. Admin. Code tit. 55 § V-5029

Current through Register Vol. 50, No. 11, November 20, 2024

Section V-5029 - Gage Glass Connections

A. Gage glasses and/or gage cocks that are not connected directly to a shell or drum of the boiler shall be connected by one or the following methods.

1. The water gage glass or glasses and gage cocks shall be connected to an intervening water column.

2. When only water gage glasses are used, they may be mounted away from the shell or drum and the water column omitted, provided the following requirements are met:

a. the top and bottom gage glass fittings are aligned, supported, and secured so as to maintain the alignment of the gage glass; and

b. the steam and water connections are not less than 1 inch pipe size and each water glass is provided with a valved drain; and

c. the steam and water connections comply with the requirements of the following:

i. the lower edge of the steam connection to a water column or gage glass in the boiler shall not be below the highest visible water level in the water gage glass. There shall be no sag or offset in the piping which will permit the accumulation of water; and

ii. the upper edge of the water connection to a water column or gage glass and the boiler shall not be above the lowest visible water level in the gage glass. No part of this pipe connection shall be above the point of connection at the water column.

B. Each boiler (except those not requiring water level indicators) shall have three or more gage cocks located within the visible length of the water glass, except when the boiler has two water glasses located on the same horizontal lines.

C. Boilers not over 36 inches in diameter in which the heating surface does not exceed 100 square feet need have but two gage cocks.

D. The gage cock connections shall be not less than 1/2 inch pipe size.

La. Admin. Code tit. 55, § V-5029

Promulgated by the Department of Public Safety, Office of the State Fire Marshal, LR 33:1359 (July 2007).

AUTHORITY NOTE: Promulgated in accordance with R.S. 23:531 and R.S. 51:1424.