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Average Head - Capacity Curve: Hale Universal Pumper
Detailed intersecting line-graph that shows a motor’s revolution per minute (R.P.M) and the head capacity of a generator. The left side of the graph shows the “Pressure in Pounds per Square Inch” starting at 80 and increases by 20 until 280. On the right side of the graph portrays the Motor and Pump R.P.M starting at 2000 and increasing by 100 until 3400.
Date:
June 21, 1937
Creator:
Hale Fire Pump Co., Inc.
System:
The Portal to Texas History