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Type F 550 GS with commutator motor Type F460 Ex

Features and benefits:

  • recommended for low to medium viscosity products, up to max. 30.000 mPas (cP)
  • lightweight and easy-to-handle eccentric worm-drive pump with planetary gear
  • with mechanical seal or stuffing box
  • low wear due to low pump speed
  • low weight of complete pump and motor unit
  • outer diameter of pump tube 50 or 54 mm
  • Type F 550 GSX.-50/21 for use in Zone 0, tested and certified according to ATEX-Directive 94/9/EC, EC-Type-Examination Certificate No. PTB 99 ATEX 4050/4051 X

Positive displacement pump - eccentric worm type

  • smooth pumping with very little turbulences
  • low wear, no valves, vanes etc.

The pump is available in:

  • Pump: stainless steel 316 L / 316 Ti (S)
  • Stator: PTFE, NBR, CSM, FKM

Immersion lengths:

  • 700, 1000 and 1200 mm (other lengths on request)

The picture shows:

  • Eccentric worm-drive pump Type F 550 GS-54/26 with commutator motor Type F 460 Ex

Performance data


  • Delivery rate max. 50 l/min
  • Delivery head max. 8 bar
  • Viscosity max. 30.000 mPas (cP)
  • The delivery rate depends on the viscosity and flowability of the fluid.
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Tomlinson Hall is delighted to be a distribution partner for FLUX, a leader in its field, and a developer of barrel pump technology for more than 60 years. Its dedication to research and development and product evolution reflects Tomlinson Hall’s own commitment to offering the very best pump products to our customers.

FLUX, along with DEPA and ELRO, is part of a strong contingent of German pump brands in our product portfolio, and we are proud to support the German pump industry.

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