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Ebsray® designs and manufactures a comprehensive program of positive displacement and regenerative turbine pumps for a wide range of industrial applications.

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Ebsray MD-HD Series Ebsray MD-HD Series Ebsray MD-HD Series Ebsray MD-HD Series

MD SeriesMD100M, MD100, MD112, MD200, MD212, MD212E, MD300

Ebsray® MD Series Internal Gear Pumps are medium-duty, positive displacement pumps suitable for handling a diverse variety of products covering a wide range of viscosities, temperatures, flows and pressures.

With a max flow rate of 1,200 L/min (316 gpm), the MD Series Internal Gear Pumps are manufactured under strict guidelines and procedures and are run tested prior to shipment in order to ensure performance in accordance with pump specifications. These high standards allow MD pumps to provide a long and trouble-free service life.

Features and Benefits

  • Reliable operation – time proven principle
  • Rugged, heavy-duty construction
  • Ease of maintenance – only two major moving pumping elements
  • Optional standard configurations and builds available to suit a wide range of applications
  • Quiet operation
  • Integral and inline relief/bypass valves
  • Low NPSHR capability
  • Excellent self-priming and vapor-clearing abilities
  • Various jacketing and shaft sealing options available
  • Smooth even flow without pulsation or surging
  • Ideal for either viscous or non-viscous liquids
  • High overall efficiency
  • Reversible operation
  • High-pressure capability
  • Cushioned positive flow movement of liquids
  • Self-compensating for wear, allowing for normal predictable operation over an extended service life

Model Lineup

MD Lit/rev
MD340M 0.0345
MD100M 0.0691
MD100 0.174
MD114 0.212
MD112 0.392
MD200 0.527
MD212 0.891
MD212E 1.191
MD300 2.487

Performance and Specifications

Range of Performance MD
Flows to 1,200 L/min (316 gpm)
Differential Pressures to 13 bar (188 psi)
Viscosities to 1,000,000 cSt
Temperatures from -40°C to 350°C (-40°F to 662°F)

Materials of Construction

  • Casing - cast iron, SG iron, steel, stainless
  • Rotors - cast iron, SG iron, steel, stainless
  • Shaft - high-tensile alloy steel, stainless
  • Corrosion/abrasion resistant and special materials to specification


  • Petroleum/fuel oil industry
  • Defense
  • Plastics manufacture
  • Heavy industry
  • Paint manufacturing
  • Power stations
  • Chemical industry
  • Food processing
  • Road tanker liquid transfer
  • Public utilities
  • Bitumen road sealing
  • Mining industry