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VerderFlex Peristaltic Pumps for Dosing Applications

Contributed by: PumpScout Staff

Dosing applications require specialized pumping equipment to run efficiently and cost-effectively. This lesson was learned the hard way by a Wastewater Treatment Plant in Dekalb County, Georgia after progressive cavity pumps struggled to perform when dosing flocculent in dry-run conditions, resulting in high maintenance costs.

Verderflex is a global manufacturer of peristaltic hose pumps and tube pumps. The company designs its peristaltic hose pumps specifically for situations such as the one described above. The pumps run with NBR hose, which has an approximate hose life of 6 months. Designed with pp flanges, the pumps run intermittently at 20 rpm indoors and use 1/2 Hp 90V dc motors to allow extended frequency turndown.

Several features make Verderflex Dura pumps ideal for this polymer feed system example when compared to progressive cavity and other pump types. Progressive cavity pumps did not offer reliable performance in run-dry conditions, while other brand rollers did not offer consistent lubrication, resulting in degradation of the hose material. In both these areas, Verderflex Dura pumps offer superior performance.

Verderflex Dura pumps feature a simple hose replacement process that reduces downtime and cost for the end-user, while the progressive cavity pump required 2 full days for removal, repair, and installation. The Verderflex pump also provides lower cost replacements parts and easy installation.

Source: VerderFlex