The Swiss pump manufacturer offers a broad range of different gear pumps, predominantly for the chemical process industry. This include the following models:
Posts Tagged ‘abrasive’
This 4-inch pump is an extension of Blackmer’s XLW Series. These pumps have been designed to perform in the handling and transfer of a variety of abrasive liquids, including oxide primers, inks and paints, where wear-resistance is critical to pump operation. These pumps have also shown to be successful in applications such as vertical and horizontal bead mills, solvent recovery, tank-bottom recirculation, heat-treater supply, enhanced oil recovery, and crude- or hot-oil transfer.
The new XLW4A model features hardened rotor and shaft, liner, end discs and vanes for long life and optimized wear-resistance. These hardened internal parts allow the pump to be used with liquids featuring suspended abrasive particles up to 250 microns in size and at a concentration up to 25%.
The RCE pump is a chemical pump made of metallic materials. It is developed for heavy-duty applications in chemically aggressive and abrasive media with or without a solids content, in chemical processing technology, the primary materials industry and other areas of industry. Typical applications are molten salt, pitch, tar, sulphur, etc.
This video shows details of the RCE series:
The new stator material named Alldur was specially developed for use in sewage treatment plants and for pumping abrasive wastewater. The elastomer’s new chemical composition and production methods can increase service life by up to three times. Alldur stators are now available in all Allweiler brand progressing cavity pumps.
by Xavier Rasotto
Plastic AODD pumps are positive-displacement pumps that have a diaphragm in each of their two pumping chambers. These diaphragms are connected by a shaft so that when the compression stroke takes place in one chamber during the pumping process, the suction stroke takes place simultaneously in the other chamber. This results in efficient, reliable, cost-effective, repeatable operation when handling any number of abrasive liquids or compounds. Solid body plastic AODD pumps have many advantages for abrasive-handling. They do not require electricity, they are self-priming and can pump a wide range of abrasive media, from slurries to liquids with suspended solids.
The strictness of demands imposed by legislators and operators on plants and systems employed in the process engineering industry in general and in aseptic process engineering in particular, continue to intensify. Whilst terms such as reliability, availability, life cycle costs, or diagnostic capabilities were used when it came to the characterisation of process pumps previously, cost and energy-efficiency are nowadays increasingly regarded as priority factors.