Military roentgenology / War Department.

Date:
[1944]
Catalogue details

Licence: Public Domain Mark

Credit: Military roentgenology / War Department. Source: Wellcome Collection.

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    This valve must be adjusted in accordance with the conditions of the day. The temperature of the com- munity water might be checked by drawing water from any spigot though this should not be necessary. It should be practical merely to note whether the heating or cooling unit can accommodate the volumes admitted. The water pump can accommo- date only 20 to 25 gallons per hour. In case of inflow at a rate greater than this, recirculation of the water is opposed and the incoming water will flow into the master tank both by way of the normal inflow stem and also by way of the circulating standpipe, thereby completely inhibiting recirculation and_ effective heating or cooling of the wash water. c. The auxiliary wash section (Item No. 96117). It consists of two compartments: a tank compartment which is identical in dimensions with those of the master chemical tank described above, and a pedestal compartment. The tank compartment contains two baffles to provide for a cascade type of washing, as shown in figure 58. A precooling system is packed in the pedestal compartment. When in use, the pre- cooling coils are suspended in the tank of the master chemical section. Appropriate connections are made to the incoming water supply attaching it to the furtherest-to-the-left compartment of the auxiliary wash section. It will be noted that separate inflow valves are provided for the auxiliary wash tank and the master chemical tank. These provide for individual rates of water flow through the two tanks. The temperature of the water in the auxiliary wash tank is regulated merely by the temperature ex- change from the circulating water of the master chemical section. This is practical because the temperature of the wash tank may be as low as 40° F., or as high as 80° F.,—not necessarily within the temperature range of 60° to 70° as required for the chemical solutions. Circulation and volume of fresh water flow are the more important require- ments as far as the wash section is concerned.
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