EXtract 811

stainless steel, extended immersion

Extract 811 is a pneumatically operated retractable probe housing to be attached on process tanks or tubing with an extended immersion length up to 207mm. The drive unit inserts the sensor into the process medium and back into the cleaning chamber. When reaching the final position of “measuring” or “service”, the probe housing responds automatically by a pneumatic position signal. Cleaning, rinsing and calibration of the sensor is possible while the process is running.

Your advantages

  • Robust design, integrated scraper
  • Extension of sensor-lifetime and reducing of maintenance efforts
  • Automatic safety lock while sensor is removed
  • Plug and play installation, colour- and size-coded connection system
  • Integrated limit switches
  • Usable in ATEX-areas
  • Immersion length up to 207mm
  • High variation of process connections and sealing materials
  • Up to 16 bar and 140 °C
  • Stainless steel AISI 316L / 1.4404 or Alloy C22
  • Can be fully automated with electropneumatic control unit EXmatic 470
  • Drive unit free of maintenance



Process pressure:0…16 bar
Process temperature:-10…140 °C
Ambient temperature:-10…70 °C
Immersion length:up to 207 mm
Sensors:325 mm Ø12 PG13.5
Materials:stainless steel 1.4404 /316L, Alloy C22 (2.4602)
Sealings:EPDM, FPM (Viton), FFKM (Kalrez)
Process connection:Flange DN50 PN16 / DN40 PN16 / ANSI 2“ 150lbs / ANSI 1 ½” 150lbs
Cleaning ports:G1/8″, G1/4″, FNPT 1/4″
Operating power:compressed air 4…6 bar
Limit switches:pneumatic, integrated

EXtract 811

Parshvi Technology