refinex® refitherm®

Cast steel gear pumps for industrial/petrochemical processes

Refinery and industrial plant applications are challenging. High process pressures and high temperatures are commonplace in such environments. Precisely in these environments MAAG gear pumps develop their full potential. Thanks to the extensive range of components and materials of constructions to choose from, MAAG gear pumps can be configured to suit customers specific requirements and therefore, are far superior to standard pumps in terms of performance and reliability.

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Advantages
Technical data
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Advantages

  • Wide viscosity, temperature, and pressure range
  • High efficiencies (due to tolerances and small clearances being modified in line with applications)
  • Precise displacement volume
  • Self-priming
  • Reliability and longevity

A range of typical pumping media (EN)

Emulsions
Sludges and condensates
Additives
Resins
Cellulose derivatives and pulps
Silicones
Adhesives and hot-melt adhesives
Paints and varnishes
Waxes and paraffins
Fertilizers
Mineral oils and fats
Fuels
Petrochemical products

Certificates (EN)

ATEX certificate
3.1 certificate
German Air Quality certificate (TA-Luft)
Performance test certificates

Options

Electrical heating
Heated seals
Bi-directional operation
Special modifications for demanding applications

Technical Data

Rotational speed [U/Min]
max. 3000
Differential pressure [bar]
max. 300
Viscosity in mPas
0.3 – 4,000,000
Temperature in °C
-30 – 320
Output l/min
0.5 – 1,750
Housing
Cast steel
Gear shafts
* Stainless steel* Nitrided steel (spur and helical)* Nitrided steel coated
Shaft Seals
* Lip seals and packing* Single or double mechanical seal* External mechanical seal* Sealing medium or heating medium connections available* Magnetic coupling with single or double containment shell
Pump heating
* Electrical heating by catridges optional for refi nex®* Integrated channels for heating / cooling by means of steam or liquids for refi therm®
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