More than sensors+automation

JUMO Process immersion fittings (202821)


  • Suitable for all 120 x 12 mm sensors with fitting length 225 mm and Pg 13.5 thread
  • Sturdy design
  • Increases probe service life
  • Reduces maintenance expenditure
  • Simple installation
  • Can be used without additional controller


Process immersion fittings are used to securely install electrochemical sensors in containers. The fittings of the 20.2821 series are specifically designed for use in harsh ambient conditions. These fittings are particularly used in heavily polluted media or in media which could cause a coating to build up. The fitting is suitable for inserting filled sensors with mounting dimensions 120 x 12 mm, and a Pg 13.5 thread. The fitting is integrated into the particular process by a flange (standard) or by a retainer. In the standard version, the fitting is supplied in 1.4404/316L stainless steel, suitable for pharmaceutical use. Other materials are available on request. The different fitting lengths available to the user range from 500 to 2500 mm (always in 500 mm steps). Typical installations are from above, into the container, or into the channel. A rinsing function, available as an option, makes it easy to clean the sensors. A downstream pH transmitter with washing contact can be used to enable a valve (rinsing liquid or compressed air). A separate controller is not necessary in this case.