About INTERNAL GEAR PUMPS

INTERNAL GEAR PUMPS

are self-priming, non-pulsating and reversible pumps that work best on clean, lubricating fluids with a viscosity thicker than water. Two gear teeth, one idler and one driver, mesh together around a crescent divider to transfer the liquid. Because of the simple one shaft construction, Internal Gear Pumps are less expensive than comparable pumps and are very easy to maintain.

ZI Green Series

Internal Gear Pump – the Economical Solution

With our economical internal gear pumps we offer interesting solutions for standard pressure applications.

Pressure: up to 14 bar
Efficiency: up to 90%
Viscosity: 1 to 55.000 mPas (higher value upon request)
Flow rates: 10 up to 4.120 l/min (0,1 to 250 m³/h)
Suction lift: up to 4 m
Temperature: -40 to 300°C

 

ZV 150 Series

Replacement for HERMETIC HP and MHP internal gear pumps

ZEILFELDER’s ZV pumps can be installed in existing piping systems and deliver the same performance as the HERMETIC HP Series.

Pressure: up to 12 bar
Viscosity: 1 to 1.000.000 mPas (higher on request)
Flow rate: 16 up to 1.000 l/min (1 bis 60 m³/h)
Temperature: -20 up to 200°C