Sealless mag drive chemical gear pumps, no mechanical seal.

Close-coupled drivers are conventional drivers mounted directly to pumps frame. No base, coupling or guards are required for this mounting style.

  • Use and maintenance manual
  • Brochure

Field of application

GS MAG-M pumps range meets the requirements on custom-built solutions in the process industry, in the following areas:

Chemical and pharmaceutical, the transfer of aggressive, highly corrosive liquids, paper, food, plant engineering and construction. For all industries that opt ​​for pumping maintenance, a hermetic seal and low maintenance for continuous use (for the replacement of mechanical seal pumps).

Design features

Pumps of the series GS MAG-M are Sealess mag drive gear pumps, no mechanical seal.

The separation of liquid chamber/atmosphere by means of an isolation shell is the best solution to pump aggressive, explosive and toxic liquids, hydrocarbons, heat transfer liquids and liquids diffi cult to seal. The hermetic sealless is the best solution for the chemical, pharmaceutical and petrochemical industry. A wide range of pumps covers the different performances. The best solution for Sampling applications.


The rear shell is made of one single piece, no welding, ellipsoidal profi le that has been studied to withstand higher pressures than the traditional one (AISI 316)

Housing & Cover are machined from rolled bar forging that is cut turned, machined and ground into its final shape, thus ensuring maximum hardness as apposed to using cast parts.

Operational data

  • Clockwise, viewed from the suction side.
  • UNIVERSALI DIN EN 1092-2 / PN 25-40, ANSI B16.5 150 lbs
  • 725 psi [50 bar] (standard) 2175 psi [150 bar] (HP Version)
  • Up to +392 °F (+ 200°C
  • 250 / 1450 rpm
  • Up to 30 bar
  • Up to 50 mc/h