Water Level Indicators

Water Level Indicators 1. No outlet connections (except for damper regulator, feedwater regulator, low- water fuel cutout, drain, steam gauges, or such apparatus that does not permit the escape of an appreciable amount of steam or water therefrom) shall be placed on the piping that connects the water column to the boiler. The water column shall be provided with a valved drain of at least 3/4 inch pipe size, the drain to be piped to a safe location. 2. Each boiler shall have three or more gauge cocks located within the visible length of the water glass, except when the boiler has two water glasses located on the same horizontal lines. Boilers not over 36 inches in diameter, in which the heating surface does not exceed 100 square feet, need have but two gauge cocks. 3. For all installations where the water gauge glass or glasses are more than 30 feet above the boiler operating floor, it is recommended that remote water- level indicating or recording gauges be installed at eye height above the operating floor.