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Allweiler Progressive Cavity Small Pumps: ANP, ADBP
General
The Allweiler PC range are used for pumping neutral or corrosive liquids, uncontaminated or abrasive liquids, liquids containing gases or which tend to froth, and liquids of high or low viscosity, including liquids containing fibrous and solid material.
The ANP and ADBP series are on the smaller end of the Allweiler PC range. They are used in a range of industries including the food and beverage, waste water, cosmetics, soap and fats, pulp and paper, dye and paints, plastic, ceramics and many others.
Related Information
Additional Information
Specifications
Allwieler PC Performance Specification – ANP and ADBP Series
| ANP | ADBP | |
| Flow (l/min) | 42 | 10 |
| Discharge Pressure (Bar) | 16 | 12 |
| Differential Pressure (Bar) | 12 | 12 |
| Viscosity 9mm2/s) | 20,000 | 20,000 |
| Fluid Temperature (Degrees Celsius) | 150 | 100 |
| Number of Stages | 2 | 3 |
Features
The outlet section, stator, suction casing and bearing housing are held together by external tie-rods. In all sizes the suction casing is designed to have a particularly large flow section. The
stator, which is vulcanised into a tubular casing is provided at both ends with external collars vulcanised to it. These provide a safe seal from the suction casing and outlet section and also protect the stator casing against corrosion. Between the suction casing and bearing housing is situated an interchangeable housing for a stuffing box or mechanical seal (pumps can be converted retrospectively to a different type of seal).
The drive shaft is carried in bearings in the bearing housing. The drive torque is transmitted to the rotor via the drive shaft and a coupling rod. The coupling rod terminates at both ends in universal joints which are encapsulated to form a liquid-tight seal. These pin-type universal joints are of particularly simple and rugged design and are able to withstand the eccentric movement of the rotor without any difficulty.
