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トップ > 運営・自治関係 >質問フォーラム >progressing cavity pump

progressing cavity pump

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pysong  長老   投稿数: 165
progressing cavity pump

High-viscosity liquids, sludge, media that contain solids – progressing cavity pumps, sometimes also called mono pumps, mohno pumps or moyno pumps, are the right displacement pumps for demanding fluids, also with high gas and solid contents. With their beneficial properties, progressive cavity pumps can also handle many sensitive and challenging liquids: gently, with low pulsation and precisely.To get more news about magnetic drive pumps accessories, you can visit brysonpump.com official website.
Progressive cavity pumps are among the rotating positive displacement pumps: That is, they handle liquids by conveying them into a conveying chamber first and then displacing them from there. The conveying movement is created by a rotating shaft (in contrast, for example to the reciprocating pump, where the piston moves in a straight line). This shaft, called the rotor, oscillates against a fixed stator. Due to the turning, spiral geometry of the two components, conveying chambers (also called cavities) are created, in which the medium flows from the pump inlet to the pump outlet. While the rotor is made of a very hard material (usually metal, for special applications also ceramic), the stator is elastic and normally made of an elastomer.

The consistency and viscosity of the fluid handled are irrelevant for the flow rate with progressing cavity pumps: The quantity transported is determined only by the speed. Combined with a frequency converter, the pump capacity can be controlled easily and precisely. The possible precision is five to three percent; small dispensers can even achieve one percent.

Funnel pumps with special screw conveyors and so-called bridge breakers are suitable for media containing large amounts of dry material. For optimal product supply, the medium is handled in a conical tamping area with a transport screw. Spoked wheels that act on the medium reliably prevent bridge formation in the pump shaft.
Media with such properties frequently have to be handled in applications where there are strict hygiene requirements: for example in the production of foodstuffs, beverages, and liquid food or in the pharmaceutical and cosmetic sectors. For such operating environments, there are progressive cavity pumps with special hygienic designs. They comply with all relevant rules for hygienic pumps, they are dead space-free, and can be cleaned reliably (cleaning in place, CIP; and sterilization in place, SIP).

Regardless of the liquid to be handled, progressive cavity pumps provide powerful suction up to 9 mWs and quiet, low-noise running with low pulsation. Their directions of rotation and conveying can be reversed; they can be installed in any position. Operation is normally possible at temperatures from -20 °C to +200 °C.
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