A-A-51362A
The bottom of the tank shall be so constructed as to prevent buckling or sagging from the weight of the water. The bottom of the tank shall be sloped downward to the waste opening in order to insure complete drainage of the tank. The tank shall be equipped with a direct connected waste and overflow and fittings or appropriate size.
The overflow shall be located at one end of the tank in such a manner that when the tank is filled to a point not less than 4 inches below the top rim, the overflow of water shall take place.
The bath shall have one thermostatic water-mixing valve having a nominal delivery capacity of 10 gallons of water per minute and shall have a temperature range extending from cold water to 120oF (48.0oC) maximum. A quick-acting dial thermometer shall be mounted in the tank to permit easy and constant reading of the water temperature. The temperature range of the thermometer shall be from 40oF (4oC) to 140oF (60oC).
The bath shall be equipped with an electric turbine ejector with an aerator embodied therein which is operated by not less than a 1/3 HP, constant speed, nominal 115 volt, 60 Hz motor. The motor shall be of the type not requiring lubrication. A protective device shall be mounted in or behind the pump inlet to eliminate a hazard to patient’s and operator’s fingers. The turbine ejector shall have a raising and lowering device to permit adjustment. The device design shall be such that only a slight pressure is necessary for upward and downward adjustment.
Surfaces to be welded shall be free from grease, oil, dirt, or other foreign material. Exposed welds shall be ground smooth to blend with adjacent surfaces. Welds shall be continuous and clean, free from pitting, splatter, and discoloration. All welds shall be sound, uncracked, and unbroken.
All exposed corners and edges shall be broken, rounded, or otherwise treated to eliminate sharp edges. All exposed corrosion-resisting steel surfaces, including the inside of the tank, shall be free from pit-marks, weld seams, scale, an shall have a No. 4 commercial finish. The finish shall be uniform and free or course grind marks and scratched areas.
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