EXtract 815M

stainless steel for welding socket DN25

EXtract 815M is a manually operated retractable probe housing made of stainless steel or Alloy to be attached on process tanks or tubing by welding sockets DN25. The drive unit inserts the sensor into the process medium and back into the cleaning chamber. When reaching the final position of the “measuring” or “service” position a safety knob locks each position automatically. Cleaning, rinsing and calibration of the sensor is possible while the process is running. The innovative design provides maximum safety and easy operation. An integrated PTFE scraper allows the use even in rough processes.


Your advantages

  • Robust design, integrated PTFE scraper
  • Automatic locking system with indicators for measurement- and service position
  • Automatic safety lock while sensor is removed
  • Safe handling under higher process pressure due to unique rotary drive
  • Stainless steel AISI 316L / 1.4404 or Alloy
  • Immersion length up to 90mm
  • Usable in ATEX-areas
  • Up to 16 bar and 140 °C
  • Drive unit free of maintenance


Request quote


Process pressure: 0…16 bar
Process temperature: -10…140 °C
Ambient temperature: -10…70 °C
Immersion length: up to 90 mm
O-ring-position: 28 mm / 50 mm
Sensors: 225 mm Ø12 PG13.5
Materials: stainless steel 1.4404 /316L, Alloy C22 (2.4602)
Sealings: EPDM, FPM (Viton), FFKM (Kalrez)
Process connection: G1 1/4" (DN25)
Cleaning ports: G1/8", G1/4", FNPT1/4"
Operating power: manual rotary drive unit
Limit switches: optional electrical NAMUR switches



  • For all kind of Ø12/225mm or Ø12/280mm sensors with thread PG13.5 (pH-glass- and ISFET sensors, conductivity- or temperature sensors, turbidity and other optical sensors)
  • Chemicals
  • Water treatment
  • Rough processes
  • Easy retrofit to pneumatic drive possible


Recommended editorial content

Here you will find external content from Vimeo. You can display it with one click.

Show external content

Retractable probe housing EXtract - easy and effective

Our Probe Housings

Immersion fittings
EXdip 910EXdip 920
Control units for pneumatic retractable housings
EXmatic 470EXmatic 471
Control units - accessories
EXconnect 170
Flow-through fittings
EXflow 710EXflow 720