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BKG BlueFlow Gear Pump

BKG® BlueFlow™ Gear Pumps from Nordson Substantially Reduce Pressure Variation, Making Possible a Return on Investment in a Matter of Months

MÜNSTER, GERMANY, March 28, 2019: Nordson Corporation has developed an online tool that quickly calculates the resin cost savings achievable with installation of a BKG® BlueFlow™ gear pump, plus the number of months in which the investment in the pump is paid back in full. The company will introduce the tool at Chinaplas 2019 (Booth 2.1F41).

Installed between the extruder and the die, a gear pump shifts the job of building melt pressure from the extruder to the gear pump. Besides reducing stress on the extruder and potentially increasing throughput, the gear pump significantly reduces the effect of process variations on melt pressure. This enables extrusion processors to run with narrower tolerances without compromising product uniformity.

The new online tool, called the Gear Pump Payback Analysis, is posted at The tool calculates resin cost savings and investment payback time on the basis of resin price, output rate, pressure variation with and without the gear pump, and capital investment. These inputs can be made in either pounds or kilograms and in many of the world’s currencies.

“Even with a new screw, pressure variation without the use of a gear pump typically is in the +/- 5% range, making it necessary for the processor to use more resin in order to ensure that the finished product meets specification,” said Christian Schroeder, global product manager for melt delivery products. “By reducing pressure variation to as little as +/- 1%, the BlueFlow gear pump makes possible resin cost savings that can generate a full return on investment in a matter of months.”


Nordson Corporation engineers, manufactures and markets differentiated products and systems used for the precision dispensing of adhesives, coatings, sealants, biomaterials, polymers, plastics and other materials, fluid management, test and inspection, UV curing and plasma surface treatment, all supported by application expertise and direct global sales and service. Nordson serves a wide variety of consumer non-durable, durable and technology end markets including packaging, nonwovens, electronics, medical, appliances, energy, transportation, construction, and general product assembly and finishing. Founded in 1954 and headquartered in Westlake, Ohio, the company has operations and support offices in more than 30 countries. Visit Nordson on the web at, @Nordson_Corp, or

Nordson Polymer Processing Systems provides customers with engineered components to melt, homogenize, filter, meter, and give shape to plastic and fluid coating materials. Nordson Corporation leverages the collective plastics industry experience from a series of strategic acquisitions to offer a uniquely broad portfolio of industry-leading technologies. Nordson delivers a full range of precision melt stream products — from screws and barrels for extrusion and injection molding — to filtration systems, pumps, and valves — to the extrusion dies and pelletizing systems to meet the constantly evolving needs of the polymer industry.

Nordson Corporation provides customers with local technical sales, service and remanufacturing capabilities through sales organizations and regional manufacturing facilities in over 30 countries. To learn more visit us at or