MIL-HDBK-740
Figure 9A - Detergent Dispenser Control Unit And Reservoir
(i) Rinse aid injector (Single, Multiple). -The rinse aid injector should conform to the requirements of MIL-I-43728 (Figure 10).
It was-developed to automatically inject a liquid wetting agent into the final
rinse water at a concentration of 75 to 200 ppm to obtain sheeting and rapid
drying for the purpose of eliminating streaks and spots on tableware, flatware, and other items. The injector should operate on the final rinse water line,
be pressure-activated and should deliver a preset concentration of rinse agent in the final rinse water, during a water flow of 4 to 15 gallons per minute or 15 to 30 pounds per square inch water pressure regardless of the fluctuations in flow or pressure. The injector can be installed directly in the final rinse water line or mounted on the dishwashing machine body and should inject the rinse agent into the downstream side of the rinse valve. Rinse aid reservoir should be mounted on the machine or on an adjacent wall
where it can be easily reached and viewed by the operator. The injector has
manual means for adjusting the flow of rinse aid and for obtaining the desired concentration. This adjustment should be made by qualified personnel, the washer operator or the installation facilities engineer, in accordance with
the instructions furnished with the rinse injector. The normal amount of
rinse aid required for the tableware for each 1000 meals in either a single-
or multiple-tank dishwashing machine is approximately 6 to 8 ounces. The
use of more than that amount indicates that the rinse aid injector should be
adjusted.
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