Diaphragm Seal – Tecsis P3000 / P3003


  • Process connection: female or male thread, flange to DIN 2 501 or to ANSI B 16.5
  • for media up to 400 °C
  • overload protection by diaphragm bed
  • dismantling of the upper section does not alter the measurement characteristics
  • special materials for extreme service requirements
  • mountable on instrumentation and control Equipment

Chemical seals are used when media can falsify the pressure measurements due to high temperature, high viscosity (media in paste form) or their propensity to crystallize. They transmit the process pressure to the measuring instrument, with the diaphragm forming a hermetic seal between the medium and measuring instrument. With various process connection systems, the chemical seals of type “Combi” are especially suitable for general process engineering applications.

The medium wetted parts of these chemical seals are manufactured in stainless steel as standard. In connection with a Bourdon tube pressure gauge or an transducer, they are suitable for pressure ranges from 0…0.6 bar to 0…250 bar. The parts in contact with the medium can be manufactured in special materials for particular service conditions. When the permissible rated pressure is exceeded, a specially designed diaphragm prevents damage to the chemical seal.


  • plant and apparatus contruction
  • process engineering
  • chemical and petrochemical industries


Pressure ranges  0 … 0.6 bar to 0 … 250 bar
Rated pressure max. PN 250


Tecsis P3000-P3003 – Diaphragm Seal-DpstarGroup