HERMETIC/ LEDERLE Pumpen GmbH holds a world leading position in the global market of sealless pumps. The range of HERMETIC/ LEDERLE pumps covers canned motor pumps, magnetic drive pumps, liquid ring vacuum pumps and positive displacement pumps such as lobe, external and internal gear pumps. This includes single stage and multi stage standard pump designs and a variety of special designs and tailor made alternatives for specific customer needs, such as API 685 pumps.
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
- 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