MIL-HDBK-1003-1 Plumbing S/S By Mil-Std-3007This military handbook, MIL-HDBK-1003/1, provides NAVFACENGCOM criteria for designing, specifying, inspecting, and accepting plumbing systems for various naval shore facilities.

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MIL-HDBK-1003/1

(d)  Example 1.  Determine the tank capacity when pump capacity is 150 gallons per minute and tank operating pressure range is 40 to 60 pounds per square inch.  (Referring to Table 2, the withdrawal from the tank is 24 percent of the tank capacity.)

Total tank capacity = 2.50 x 150 gpm I 0.24 percent = 1,563 gallons

or

Total tank capacity = 2.5 x 568 LImin I 0.24 percent = 5916 liters

(e)  Compressed Air.  Compressed air is supplied for tank operation according to the tank capacities.  Satisfactory operation has been attained by providing 1.5 cubic feet per minute (cfm) for tank capacities up to 500 gallons (1893 L)

and 2 cfm for capacities from 500 to 3,000 gallons (1.89 to

11.35 m+3+).  For each additional 3,000 gallons (11.35 m+3+)

or fraction thereof, add 2 cfm (0.0566 m+3+Imin.).

(Quantities are expressed in cubic feet (cubic meter) per

minute free air at pressure equal to the high pressure

maintained within the hydro-pneumatic tank.)

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