Posts Tagged ‘abrasive’

Metal seated ball valves for up to 420 bar and 450 °C

Monday, July 2nd, 2018 von admin

The patented design of the so-called ‘Dissolution’ ball valve offers optimized distribution of forces and loads in the ball valve, so that they only occur where they are actually needed. This means that the ball valve made by AS-Schneider can be actuated easily even under high pressures up to 420 bar.

The forces needed to maintain the tightness between ball seat and valve body are only directed onto the corresponding graphite seal rings (see figure).

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Pumps for wet flue gas desulfurization

Tuesday, April 10th, 2018 von admin

A cement factory in Texas was among the first in the USA  to install wet flue gas scrubbers in order to reduce the sulfur dioxide emissions. This is a demanding application for pumps because the gypsum slurry that “scrubs” the gas is highly abrasive and corrosive.

Special pumps with housings and impellers made of mineral cast prove to be a perfect solution here.

Wet Flue Gas Desulfurization Scrubber systems are a vital component in various industries due to strict environmental regulations. First applications were coal fired power plants and waste incineration plants. Today, other industries utilize wet scrubbers in their day to day operations as well to scrub flue gas emissions from burners that utilize coal as a fuel source.

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Maag: Gear pumps for chemical process industry

Tuesday, August 25th, 2015 von admin

The Swiss pump manufacturer offers a broad range of different gear pumps, predominantly for the chemical process industry. This include the following models:

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Blackmer: 4-Inch Sliding Vane Pump

Monday, September 8th, 2014 von admin

Blackmer_XLW (2)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%.

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Colfax: Stators up to triple service life

Tuesday, March 25th, 2014 von admin

!cid_7373C761E0C2C22CF1DC@TENNCOMANEUHAUThe 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.

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