When a new manufacturing plant gets planned or an existing plant needs to be modernized, often the question of the right pumping system is taken into consideration: What type of pump is the correct one? The following list speaks in favor of the progressive (progressing) cavity pump:
- Gentle conveying of the medium: the pumping chambers in the pump assembly remain constant, so that the product gets neither crushed nor sheared. The non metal to metal contact of the progressive cavity principle is far superior when pumping abrasive particles in suspension.
- Different viscosities are equally well served: From low to high viscosity media the progressive cavity pump handles everything, even thixotropic or entrained air fluids. This makes it extremely flexible and versatile in its range of applications.
- No backflow into the pump: When stopped the progressive cavity pump closes like a slider (valveless pump) so that practically no backflow returns to the pump.
- Very good suction performance: With its excellent suction performance this pump is the right choice for emptying barrels, mixers and containers of all kinds (big bags). Progressing cavity pumps from KNOLL Maschinenbau offer a negative pressure of up to 0.2 bar absolute, when fitted as suction, submergible and following plate version.
- Metering accuracy: Due to low pulsation the progressive cavity pump offers very exact metering. An additional valve is not required.
- Linear characteristic curve: Since there is no backflow into the pump, the flow rate is increasing always proportional to the speed. Thus, the optimal efficiency of this pump extends over a very wide range.
- Suitable for high pressures: Progressing cavity pumps from KNOLL achieve a pressure increase of up to 80 bars, which makes them an interesting proposition for sophisticated engineering. The higher pressures are desirable for moving product greater distances and for applications involving extrusions.
The MX-Pumps from KNOLL therefore are used in a wide range of different applications. Here is a selection of media that will be optimally promoted by this progressive cavity pump:
- In the food and beverage industry: dairy products, raw and cooked vegetables, fruit mash, concentrates (eg juices), liquid egg dough, color and flavor, butter, cooked dishes, raw and auxiliary materials and finished materials for the confectionery industry, chocolate (with and without lumpiness), animal food;
- In chemistry, biochemistry, pharmaceuticals and cosmetics: paints and coatings, resins, waxes, adhesives, raw and auxiliary materials for the pharmaceutical industry, peels, cosmetic products (including products for organic and natural cosmetics).
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[...] in industrial manufacturing processes need to meet high standards. In most cases their capacity and the required back pressure are in the forefront of attention. But since pumps [...]