EXtract 820

pneumatic retractable housing made of plastic

Extract 820 is a pneumatically operated retractable probe housing to be attached on process tanks or tubing. 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, the probe housing responds automatically with 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
  • High stability protection cage in Alloy for option PVDF
  • Immersion length up to 94mm
  • High variation of process connections and sealing materials
  • Up to 10 bar and 140 °C
  • Can be fully automated with electropneumatic control unit EXmatic 470
  • Drive unit free of maintenance



Process pressure:0…10 bar
Process temperature:-10…140 °C
Ambient temperature:-10…70 °C
Immersion length:up to 94 mm
Sensors:225mm Ø12 PG 13.5
Materials:PP, PVDF/Alloy C22, PEEK
Sealings:EPDM, FPM (Viton), FFKM (Kalrez)
Process connection:Flange DN50 PN16, ANSI 2“ 150lbs, MNPT 1 ¼“
Cleaning ports:G1/8″, G1/4″, FNPT1/4″
Operating power:compressed air 4…6 bar
Limit switches:pneumatic, integrated


Parshvi Technology