R Inox
Stainless steel monoblock gear pump for chemical process

Stainless steel monoblock gear pump specially designed for chemical process applications in industrial sectors.

Self-priming unit equipped with  quiet helical gears.



  • Stainless steel monoblock gear pump specially designed for chemical process applications in the industrial sector.
  • The helical gears allow a smoother and quieter operation of the pump.
  • It is a self-priming pump. That is to say, with the installation empty, the pump is able to aspirate the liquid causing a vacuum pressure in the suction pipe.
  • Specially designed for chemical process applications, up to 150ºC depending on materials of construction.
  • Versatility of construction materials for total adaptation to the transfer fluid and/or the environment.
  • Suitable for transferring a wide variety of fluids such as alcohols, bases, solvents, acids, oils and many more.
  • Compact monoblock construction with rigid coupling of the pump shaft to the end of the motor shaft, clamped by means of a flange.
  • Possibility of installation in explosive atmospheres in accordance with ATEX directives.
  • Sealing solution by means of:
    • Inner mechanical seal, which adapts to the most demanding applications thanks to its versatility of construction materials and independent direction of rotation.
    • Radial shaft lip seal with stainless steel outer metal shell and PTFE sealing lip.
  • The assembly can optionally be mounted on a baseplate, on demand. This makes it much easier to place in the final destined installation.

For even more demanding applications that require modification of the mechanical seal environment, the RBQP Inox series is the right choice. Take a look!


 Pump casing 316 SS, 904 SS, Hastelloy…
 Gears Black PEEK or treated 316 SS
 Pump shaft 316 SS, 904 SS, Hastelloy…
 Pump cover 316 SS, 904 SS, Hastelloy…
 Sealing solution Mechanical seal or lip seal
 Motor flange GG25


Technical data

 Motor Three-phase according to IEC 60034-30 standards
 Efficiency IE2 or IE3 for power > 1 HP
IE1 if power < 1 HP
It can be supplied up to IE5.
 Tension Three-phase 230/400 V ± 10% up to 5.5 HP
Three-phase 400/690 V ± 10% from 7.5 HP upwards
 Poles 4 or 6 depending on the model. 8 on demand.
 Level of protection IP55
 Insulation F Class


Usage limits

 Range of flow rates Up to 6500 l/h
 Range of pressures Up to 10 bar depending on the model
 Max. Working pressure 12 bar
 Max. Working temperature 150ºC according to construction materials