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Hale midship pump panel (Ferrara Fire Apparatus) Hale Products Incorporated is a unit of IDEX Corporation. [1] Like its parent, IDEX, Hale manufactures hydraulic equipment. However, this equipment is designed almost exclusively for the fire and rescue field.
Hale sells fire-trucks, portable pumps, ventilation systems, and the Hurst "Jaws of Life". [5] In January 1998, IDEX agreed to buy Gast Manufacturing of Benton Harbor, Michigan, for $118 million. Gast manufactures compressors, vacuum pumps, air motors and other products. [6] In 2011, IDEX Corporation acquired The Fitzpatrick Company. [7]
These were pump vehicles extensively used by the auxiliary fire service during the cold war and called upon to relieve the firemen's strikes in the 1970s and 1980s. The portable pumps later became diesel powered, and trailer mounted versions were also available. A new development in 1971 was the Godiva UMP pump.
The Gramm/Ahrens-Fox fire engines had Hercules motors and either Northern or Hale fire pumps, while the Gramm/Bickles used Seagrave motors and pumps. Bickle also made fire engines on Seagrave's own chassis, and on various other commercial truck chassis, at the same time that they were making Gramm/Bickles.
Different types of pumps are suitable for different applications, for example: a pump's maximum lift height also determines the applications it can be used for. Low-lift pumps are only suitable for the pumping of surface water (e.g., irrigation, drainage of lands, ...), while high-lift pumps allow deep water pumping (e.g., potable water pumping ...
Hele-Shaw flow is defined as flow taking place between two parallel flat plates separated by a narrow gap satisfying certain conditions, named after Henry Selby Hele-Shaw, who studied the problem in 1898.
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