In many applications, pumps must endure rigorous conditions including high levels of abrasion. According to Axflow, a distributor of fluid handling equipment based in the United Kingdom, the Waukesha® Cherry-Burrell® Composite Diamond Coated (CDC) Universal® I and Universal® II pump series not only resists abrasive conditions. It also offers a long working life, resulting in less maintenance.
Initial reports from an offshore oil production industry where AxFlow has installed the units, indicate a 250% increase in working life between servicing intervals.
The pumps are also appropriate for use in potentially abrasive applications in the biotechnology and pharmaceutical industries. (For details about these and other pumps suited for these industries, download our brochure on specialty pumps.
Pump Series Features Abrasion-resistant Coating
Consisting of rotary piston pumps, the Universal Series is capable of handling varying sizes and viscosities, even with large particles that may settle in the pump. All wetted components have an FDA-approved abrasion-resistant coating to provide non-galling (surface damage arising between sliding solids) wear protection.
Using a principle known as the external circumferential piston, the WCB Universal’s arc-shaped rotary pistons, or rotor wings, travel in annular-shaped cylinders machined in the pump body. This reduces slippage and produces a smooth product flow without destructive pulses or pressure peaks.
When the composite diamond coated (CDC) option on the Universal II pump is selected, the surface finish of the CDC coating is typically between 40Ra and 60Ra. The hard diamond coating provides extreme resistance to abrasion and increases wear life.