Düker GmbH
Düker, a medium-sized company, is one of the leading manufacturers of valves and pressure pipe fittings for drinking water and gas supply, as well as pipes and fittings for building drainage.
Introduction
Düker, a medium-sized company, is one of the leading manufacturers of valves and pressure pipe fittings for drinking water and gas supply, as well as pipes and fittings for building drainage.

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Heating, Controlling and Monitoring of agressive liquids
Heating with immersion heaters, cartridges, PTFE-heating rods and teflon-heaters.
Controlling and Monitoring of level and temperature with level switches, conductive level probes and temperat
Tradition and innovation–these have been the hallmarks of BETH’s history for more than a century.
The company was founded in 1887 by W. F. L. Beth, an engineer from Lubeck who invented the world’s first bag filter. The patent was issued as number 38
S Murray & Co was founded in 1915 initially as a manufacturer and distributor of medical glassware. Owner managed for four generations, the company has since grown to become a leading British manufacturer of laboratory glassware, surgical instruments