AODD–Pumps Help to Overcome the Problems with Adhesives–Handling

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Wilden Pump & Engineering, LLC

Since 1955, Wilden, which in 2008 became a founding member of the Dover Corporation’s Pump Solutions Group, has been a premium manufacturer and supplier of AODD pumps for a wide range of industries, including those that require no–leak, low–shear product handling and the capability to be reliably used in potentially explosive manufacturing atmospheres.

Recommending Wilden pumps to Saba was Gerrit Klaassen, Commercial Director of Holland Air Pumps and a dedicated supplier of Wilden pumps in The Netherlands. “Saba needed a pump that performed well in pumping sticky materials and they were having leakage issues with gear pumps,” explained Klaassen. “We solved those problems by suggesting they use Wilden pneumatic pumps 20 years ago.”

Stainless Steel Pumps Required for Adhesives

“We made a good choice with these Wilden pumps, they are still going very strong,” said Henk Blom, Manager Technical Service for Saba, who was actually the person who made the final decision to stake Saba’s lot with Wilden pumps two decades ago. “It is important for water–based adhesives that these pumps have less shear than a centrifugal or a gear pump, so it’s very good for us to use Wilden pumps with these kinds of materials.”

The unique characteristics and requirements of the raw materials that Saba uses and the finalized products it produces also means that stainless–steel pumps with PTFE (Teflon) diaphragms, elastomers and check balls are required. Wilden delivers that to Saba with its Original Series PX4 and PX8 (38 mm and 51 mm) clamped AODD pumps and Advanced Series PX400 and PX800 bolted AODD pumps.

Issues with Air Usage

Despite all of its operational advantages, AODD pump technology has always had to fight the battle of optimizing air usage. Wilden has made several improvements in this area over the years, including the development of its innovative Pro–Flo X Air Distribution System (ADS), which allows the pump user to dial in the most efficient flow rate for the pumping application. “We don’t have any problems with the ADS, it never stops,” Blom said. “We’ve turned to Pro–Flo products from Wilden to maximize our efficiency and air consumption.”

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