Grey cast iron gear pump for industrial processes

Continuously operated equipment calls for reliable components. Whether in lubrication oil applications or in processing plants, a pump is required to work reliably and longlasting. Thanks to the extensive range of components and pump sizes, hydrolub® can be configured to suit customers’ specific requirements and therefore, are far superior
to standard pumps in terms of performance.

Suitable for


Technical data
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  • Wide viscosity, temperature, and pressure range
  • High effi ciencies (due to tolerances and small clearances being modified in line with applications)
  • Precise displacement volume
  • Self-priming
  • Reliability and longevity
  • Safety
  • Low pulsations for oil applications (helical gears)

A range of typical pumping media (EN)

Paints and varnishes
Waxes and paraffins
Mineral oils and fats
Petrochemical products
Lube oil

Certificates (EN)

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


Heated seals
Bi-directional rotation
Special modifications for demanding applications
Safety valve in the pump upon request

Technical Data

Rotational speed [U/Min]
Differential pressure [bar]
Viscosity in mPas
0.3 – 4,000,000
Temperature in °C
-30 – 150
Output l/min
0.1 – 2,400
Pressure-resistant cast iron
Gear shafts
Nitrided steel (spur, helical or 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
SAE, CETOP, DIN, and ANSI flanges