Hermetic / Lederle Centrifugal Pumps

HERMETIC-Pumpen GmbH holds a worldleading position in the global market of sealless pumps. The range of HERMETIC pumps covers canned motor pumps, magnetic drive pumps, vacuum- and positive displacement pumps. This includes standard pump designs and a variety of special designs and tailor made alternatives for specific customer needs.

HERMETIC-pumps can operate in environments with fluid temperatures that span from -160 °C up to +480 °C, system pressures up to 120 MPa and powers between 1 kW up to 670 kW. To date we supplied more than 182.000 HERMETIC pumps world-wide for the most severe toxic or hazardous applications, which require zero leakage tolerance.


  • Single- and multistage
  • Normal-suction design
  • Bearing bracket design
  • Shaft seal by stuffing box packing or mechanical seal
  • Capacity: max. 45 m3/h
  • Head: max. 270 m
  • Rotating speed: 2900 to 3500 rpm
  • Operating temperature: max. +350 °C
  • Viscosity: max. 300 mm2/s
  • Pressure ratings: PN 16 and PN 25

  • Single- and multistage
  • Normal-suction design
  • Close-coupled design
  • Shaft seal by stuffing box packing or mechanical seal
  • Capacity: max. 45 m3/h
  • Head: max. 270 m
  • Rotating speed: 2900 to 3500 rpm
  • Operating temperature: max. +350 °C
  • Viscosity: max. 300 mm2/s
  • Pressure ratings: PN 16 and PN 25


Type VHK

  • Single- and multistage
  • Normal-suction design
  • In vertical installation
  • Close-coupled design
  • Shaft seal by stuffing box packing or mechanical seal
  • Capacity: max. 45 m3/h
  • Head: max. 270 m
  • Rotating speed: 2900 to 3500 rpm
  • Operating temperature: max. +350 °C
  • Viscosity: max. 300 mm2/s
  • Pressure ratings: PN 16 and PN 25

Vacuum Pumps & System

Designed with mechanical seal

Type LVPG
  • Double suction design
  • Shaft seal by mechanical seal
  • Suction capacity: max. 1800 m3/h
  • Suction pressure: min. 33 mbar (abs)
  • Rotating speed: 700 to 1800 rpm
  • Operating temperature: -20 °C to +100 °C
  • Pressure rating: PN 10

Package Unit

Vaccumm pump type LVPG 1800

Liquid ring vacuum pump type LVPG 1800 with mechanical shaft seal, double-flow

  • For suction of solvent vapours
  • Suction temperature approx. 42 °C
  • Pumping capacity 1674 m3/h at 147 mbar
  • Compression to 1206 mbar