Oerlikon Barmag: Eccentric screw pump series for high-viscosity or abrasive media

Oerlikon Barmag will be premiering its new eccentric screw pump series which covers a throughput range of between 1 ml/min and 30 l/h at Utech Europe in Maastricht in November 2021.

According to the company the new eccentric screw pump has viscosity range between 1 mPas and 1,000 Pas. It is geared for high wear-resistance and thus suited for conveying highly-filled, high-viscosity or abrasive media, such as filled adhesives, filled silicones and filled casting compounds, for example. A special feature of the eccentric screw pump is the multi-stage seal system, which considerably extends the pump’s lifespan. The upstream shaft sealing ring protects the slide ring seal against excessively-fast wear caused by challenging media. In turn, the optimum alignment of the drive shaft – ball bearing supported and centrally-guided through the shaft sealing ring – prevents any metal debris caused by friction and hence ensures considerably greater durability. Furthermore, the sealing medium used between the shaft sealing ring and the slide ring seal provides an optimum environment for the seal system.

Besides Oerlkon Barmag focuses on the GM and GA series gear metering pumps as well the high-speed pump and associated components at this year’s Utech Europe. The high-speed metering pump has been especially developed for metering poorly-lubricating media. The main advantage of the pump is the sealed product space. The space that comes into contact with the media is therefore limited to the area around the gears. The external, ball-bearing support points in the high-speed pump are externally lubricated, hence ensuring that the product to be metered does not cause damage as a result of poor lubrication. This extends the lifespan of the pump considerably. Furthermore, the enlarged speed range (30-500 rpm) permits a large application range for which several pumps of varying sizes have had to be used to date. With its low weight of 1.4 kg, the compact pump (diameter 65 mm) promises both considerable space savings and less wear on the machine.

The pumps in the GM and GA series provide precision metering with low-pulsation feeding of the conveying medium. The multi-stage GM pump conveys low-viscosity media (i.e. 250 bar, 100 mPas) even under high pressure and in the most challenging conditions.

The GA series was developed especially for the challenging conveying of high-viscosity media. The GA series pumps are available for conveying volumes of between 0.6 and 144 l/h). They have been designed for pressures of up to 200 bar, for viscosities of up to 1.500 Pas as well as for temperatures of up to max. 225 °C.

www.oerlikon.com

Utech Europe 2021 Stand H32