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HMQ Quadruplex Piston Diaphragm Pump

Efficient handling of high flow rates.

THE ABEL HMQ is a quadruple acting piston diaphragm pump that is primarily used for high flow applications.

The pumps which are included in the ABEL range, HMQ (Quadruplex) are easily identifiable due to their unique compactness and space-saving designs. They come to the fore when large volumes of abrasive materials need to be transferred under high pressure conditions. This also applies when slurries with a high, mineral based content have to be transferred, in such environments as the mining and/or cement industry. The four, pre-formed diaphragms which are incorporated in an ABEL HMQ remain stable throughout the duration of the pumping operations. A control valve installed on the hydraulic side of the unit monitors not only the front diaphragm position, but also the rear diaphragm position. This concept of diaphragm monitoring, which provides a high service life standard, is one of the basic reasons behind the reliability and durability of these products.

As with the whole HM series, the HMT and HMQ pumps also make use of the advantages of modern diaphragm technology: Pre-formed, pressure balanced diaphragms which are adapted to the particular application and hermetically separated hydraulic and product sides.

Equipped with an integral reduction gear and can be fitted with ball and/or API cone valves. The parts of the pump which will come into contact with the materials to be pumped are made of nodular cast iron (also rubber-coated), cast steel or stainless steel.


Technical Data

  • Capacity: 7500 l/min or 450 m3/h
  • Pressure: 230 Bar



  • Nodular Cast Iron,
  • Stainless Steel,
  • Rubber Lined.


  • Mine Dewatering,
  • Thickener Underflow,
  • Backfilling,
  • Sludge/Fluid Transfer,
  • Autoclave Feed,
  • Filter Press Feed.
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