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Edward Lowton
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Enhancements made
09 January 2014
Cat Pumps has made enhancements to one of its 345 bar high pressure pumps used for pressure testing, heavy-duty pressure washing including graffiti removal and in industrial processes.
With the introduction of the Model 700, the existing Model 70 pump has been upgraded to include a new pump head with a revised valve arrangement. Cat Pumps calls call this design 'stacked valves' because discharge valves are installed directly above the inlet valves in a common bore. This simplifies servicing as the design now only has three valve plugs.
Consequently there is a new Valve Kit which contains all six valves. High and low pressure seals are identical to those used for many years in the Model 70; a new Seal Kit contains these and all parts needed to service the seals.
The drive end of the Model 700 is directly interchangeable with the Model 70 and most service items are identical. However, the plunger rod has been changed to eliminate the need for the plunger spacer.
Performance remains unchanged at 17L/min at 1700 rpm and being a true positive displacement pump, the flow remains directly proportional to speed to the maximum pressure rating of 345 bar.
