New Line of Cast Stainless Steel Air Operated Diaphragm Pumps


Crane ChemPharma & Energy developed a new generation of air operated double diaphragm (AODD) pumps. The line named Depa DH is manufactured in cast stainless steel (316L). This new range will include five sizes that are certified to Atex Zone 0 and five that are certified to Atex Zone 1.

The DH pumps are developed for operations within industrial and chemical applications. Acc. a company’s information “the Depa DH pump features an optimized pump design that can improve efficiency by up to 57% and increase flow rate by up to 10%.”

With a free-standing, bolted design, it is made of fewer parts than previous models, improving maintenance in place capabilities. Additionally, its flexiport design enables on-site adjustments to the port orientation, as well as expanded application opportunities within a pressure range of up to 8.6 bar (125 psi).

Depa DH pumps can be equipped in sizes 15, 25 and 40 with an external air valve (the AirSave System) which allows for improved start up pressure, as well as easy access, repair and maintenance.

“This year marks the 50th anniversary of the Depa brand and since its inception, we have always prioritized innovation, quality and reliability. So what better way to celebrate this incredible milestone than with the introduction of the cast stainless steel Depa DH line of pumps,” said Chris Blanchard, Global Business Line Manager Pumps Crane ChemPharma & Energy. “This introduction will expand the use of our pump products to other applications, fulfilling our goal of being the pump provider of choice.”

These cast stainless steel Depa DH pumps deliver superior performance for the paint & varnish, galvanic & coating, mining & building, marine, and system integrators industries and applications. With universally selectable wear and tear parts, they are available with a comprehensive selection of options and accessories which include stroke counters, diaphragm leakage monitoring and various flange options.


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