A-A-50047 Dry Cleaning Unit Assembly, Dry To Dry, Perchloroethylene Solvent

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A-A-50047A

TABLE I. Basket/drum volume and cylinder dimensions

Size	Volume	Cylinder diameter	Size	Volume	Cylinder diameter
25	6.5 cu. ft.	29 inches	60	16.0 cu. ft.	39 inches
30	8.0 cu. ft.	31 inches	65	18.0 cu. ft.	40 inches
35	9.0 cu. ft.	33 inches	70	20.0 cu. ft.	41 inches
40	10.5 cu. ft.	33 inches	75	22.0 cu. ft.	42 inches
45	12.0 cu. ft.	36 inches	80	24.0 cu. ft.	43 inches
50	13.5 cu. ft.	37 inches	100	30.0 cu. ft.	47 inches
55	14.5 cu. ft.	37 inches

2.1.3 Solvent tanks. Dry cleaning unit sizes 25 through 40 shall have a minimum of two solvent tanks (wash and rinse tank). Unit sizes 45 through 100 shall have a minimum of three solvent tanks (wash, rinse, and reverse). Each tank shall be equipped with its own illuminated leveling gauge or illuminated sight glass. The solvent tanks shall have an internal cooling coil. The solvent tanks shall have the following minimum capacities.

TABLE II. Solvent tank minimum capacities

Size	Wash tank	Rinse tank	Reverse tank
25	25 gallons	20 gallons
30	30 gallons	23 gallons
35	36 gallons	26 gallons
40	42 gallons	30 gallons
45	49 gallons	35 gallons	30 gallons
50	56 gallons	40 gallons	33 gallons
55	62 gallons	46 gallons	37 gallons
60	70 gallons	52 gallons	41 gallons
65	80 gallons	59 gallons	45 gallons
70	90 gallons	70 gallons	50 gallons
75	100 gallons	80 gallons	55 gallons
80	110 gallons	90 gallons	61 gallons
100	150 gallons	110 gallons	90 gallons

2.1.4 Still. The still shall have a window and its interior shall be illuminated. The still shall have a float or leveling switch to prevent over filling and a clean-out door. The still shall be steam heated and have a minimum distillation rate and working capacity in accordance with the following: