External Gear Pumps

With our diverse standard and high performance gear pump range we are able to serve all your needs and respond to any challenge. Our gear pumps are robust, self-priming and are designed for your specific application. We offer explosion proof and seal-less pumps for the petrochemical industry, pumps with minimal surface roughness for the pharmaceutical and food industry and high pressure pumps for dynamic applications etc. Our pumps have proven their quality and efficiency for over 85 years.

On demand, we can provide external gear pumps which are API, ATEX,TR-CU 10, TR-CU 12 and TA Luft compliant.

External 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 to transfer the liquid.

Zeilfelder high performance pumps last longer and are more effective than standard pumps. We choose the pump materials carefully depending on specific requirements and objectives of your application.

Because of the balanced construction and bearings on both sides of the shafts, the pumps are capable of non-pulsating flow and high pressures.

Pressure: up to 120 bar
Viscosity: up to 150.000 mPas
Flow rates: up to 4.350 l/min (260 m³/h)
Suction lift: up to 6 m
Temperature: -60 to 450°C

ZK Blue Series

A high performance pump customized to your needs

With our diverse standard and high performance gear pump range we are able to serve all your needs and respond to any challenge. Our gear pumps are robust, self-priming and are designed for your specific application.

On demand, we can provide external gear pumps which are API, ATEX, TR-CU 10, TR-CU 12 and TA Luft compliant.

Pressure: standard 25 bar (optional up to 120 bar)
Efficiency: 60 to 92%
Viscosity: 0,5 to 25.000 mPas (higher value upon request)
Flow rates: 0,4 up to 300 l/min (0,025 to 18 m³/h)
Speed: up to 3000 rpm
Suction lift: up to 6 m
Temperature: -60 to 450°C
Materials: all available materials
Seals: lip seals, packing, single or double mechanical seals, magnetic coupling

ZH Blue Series

A high performance pump customized to your needs

With our diverse standard and high performance gear pump range we are able to serve all your needs and respond to any challenge. Our gear pumps are robust, self-priming and are designed for your specific application.

On demand, we can provide external gear pumps which are API, ATEX, TR-CU 10, TR-CU 12 and TA Luft compliant.

Pressure: standard 25 bar (optional up to 120 bar)
Efficiency: 60 to 92%
Viscosity: 0,7 to 150.000 mPas (higher value upon request)
Flow rates: 1 up to 4.350 l/min (0,03 to 260 m³/h)
Speed: up to 3000 rpm
Suction lift: up to 6 m
Temperature: -60 to 450°C
Materials: all available materials
Seals: lip seals, packing, single or double mechanical seals, magnetic coupling

PQ Green Series

Standard Pump – the Economical Solution

With economical gear pumps we offer interesting standard solutions.

Pressure: up to 20 bar
Efficiency: 60 to 74%
Viscosity: 0,5 to 140.000 mPas (higher value upon request)
Flow rates: 0,14 up to 2.283 l/min (0,008 to 137 m³/h)
Suction lift: up to 4 m
Temperature: -60 to 450°C
Materials: all available materials
Seals: lip seals, packing