Conquering the Challenges of Latex Emulsion–Handling

Related Vendors

Lutz Pumpen GmbH

EagleBurgmann Germany GmbH & Co. KG

Angst+Pfister AG

Wilden Pump & Engineering, LLC

One Pump to Consider

While all of these aforementioned pump technologies have been found wanting when handling latex emulsions, one has risen to the fore—positive displacement air-operated, double-diaphragm (AODD) pump technology. AODD pump technology was invented in 1955 by Jim Wilden, the founder of the Wilden Pump & Engineering Company, LLC, which is headquartered in Grand Terrace, CA, USA. The particular pump that sets the standard in these operations is the Wilden Advanced series metal AODD pump.

Advanced series pumps hit the latexhandling ‘sweet spot’ because they feature a sealless, bolted configuration that ensures total product containment, while the design of the wetted path reduces internal friction, enabling the pump to deliver the level of shear-sensitive operation that is mandatory when working with latexes. The AODD pump’s positive-displacement operating principle also guarantees that the product flow rate will remain volumetrically consistent.

The pumps are offered in a number of materials of construction, including aluminum or 316 stainless steel, which is generally preferred when handling latexes, with PTFE elastomers. The pumps are available in four sizes, from 25 mm to 76 mm (1-inch to 3-inch).

Conclusion.

Why AODD Might Be the Technology for You

Latex emulsion is, and will continue to be, a crucial component in any number of industries and the products they produce, (some of which are as common as the adhesive on the back of a postage stamp). The sensitive handling characteristics, though, can make latex a difficult substance to transfer via pump—if ineffective pumping technology is employed. Over the years, manufacturers and handlers of latex emulsions have found that there is a pumping technology that provides reliably the required operational principles, and that is the —positive displacement air-operated double-diaphragm pump technology.

* Prasad is Director of Sales, Pump Solutions Group (PSG) India. Rasotto is Chemical Market Manager, EMEA Wilden and Pump Solutions Group (PSG)

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