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Not only are Wilden pumps the most cost-effective, reliable and energy-efficient solutions available, but our state-of-the-art air distribution systems (ADS) significantly increase positive displacement pump productivity by reducing air consumption and maintenance for the most energy-efficient AODD pump operation possible.

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Chem-Fuse Savings Calculator

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Instantly see your potential savings based on the pre-filled standard mean time between failure data for Chem-Fuse and Conventional Diaphragms.

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Wilden® solves pumping challenges across the spectrum

Wilden® positive displacement air-operated double-diaphragm (AODD) pump solutions are leading the way in a host of industries and applications.

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The Wilden World of Service and Support - Assistance Beyond Expectations

Wilden® is always ready to assist with technical support for Wilden AODD pumps, parts or accessories.

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Chem-Fuse Savings Calculator

Personalized savings calculations for your operation

Instantly see your potential savings based on the pre-filled standard mean time between failure data for Chem-Fuse and Conventional Diaphragms.

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How AODD Pumps Can Handle High Viscosity

by PSG | Mar 01, 2018

Date Posted: 03/01/18

A common question asked by users of air operated double diaphragm (AODD) pumps is, “What is the maximum viscosity of a process fluid that can be transferred by an AODD pump?” In truth, the answer has little to do with the selected pump and much to do with the piping system to which the pump is connected. Users often forget this, since most AODD applications are transfer applications with a relatively low viscosity fluid. While a complete discussion of more accurate methods for evaluating pump systems is beyond the scope of this article, pump users can employ the following techniques to estimate the factors that impact flow rates in AODD systems with high viscosity fluids.

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