Flowserve increases pressure range of Durco Pumps | Automation.com

Flowserve increases pressure range of Durco Pumps

June 12, 2015 - Flowserve expanded its line of Durco Mark 3 ISO chemical process pumps with a range of higher-pressure variants. The release of the higher-pressure pumps comes at a time of increasing demand from major chemical companies and refineries for ISO 2858 and ISO 5199 pumps rated up to 25 bar. 

Sealed Durco Mark 3 ISO pumps are designed to operate up to a pressure rating of 16 bar. The high-pressure casings match the hydraulic performance, dimensions and branch location of the standard casing. However, by the use of 3-D modeling and finite element analysis, the pressure rating of the pump is increased up to 25 bar, dependent on material and temperature, with minimal increase in weight. In addition to the casing, all other pressure-containing parts are also rated up to 25 bar. The pumps are available in a wide range of materials, including carbon steel, stainless steel, and reactive alloys such as titanium and zirconium.

Available in more than 30 models as foot- and centerline-mounted casings, these high-pressure pumps are fully compliant with ISO 2858 duty conditions and dimensional requirements. The high-pressure casings and associated components have been designed for use with the sealed Durco Mark 3 ISO power end components to ensure a high degree of interchangeability, thereby minimizing spare parts inventory.

Durco Mark 3 ISO pumps have capacities up to 1,400 m3/hour (6,160 U.S. gpm) and heads to220 m (720 ft.). Discharge nozzle sizes range from 32 mm (1.25 in.) to 200 mm (8 in.) and operating temperatures from -80 °C (-110 °F) to 400 °C (752 °F). The efficiencies and NPSHR of the higher-pressure variants are the same as the sealed Durco Mark 3 ISO with ISO 2858 compliant hydraulics.

The Durco Mark 3 ISO higher-pressure pump range is CE marked, compliant with all applicable European Directives such as the Machinery Directive and ATEX, and also has GOST certification.

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