WA 131 MH

SensoGate Retractable Fitting

Innovative manual retractable fitting with easy-to-operate rotary drive for hygienic applications


  • steam-sterilizability validated for all process- wetted parts incl. rinsing/calibration chamber
  • directed flow rinses the process seal from the process side as well as from the inside of the fitting
  • perfect sensor cleaning effect by cyclone rinsing
  • safe separation to the process during probe movement and prevention of re-contamination
  • double gaskets with leakage bores prevent microbial contamination of the drive
  • broad applications in hygienic conditions
  • cost reduction by simple installation, operation, and maintenance
  • very high availability
  • protective rinsing of the seals for a long service life
  • SensoLock for high safety of operation
  • integrated limit switches
  • fast and uncomplicated replacement of calibration chamber and immersion tube
  • all maintenance can be performed on site
  • superior sensor immersion depth
  • standard sensor length (225 mm) even for large immersion depths
  • multiple process connections available
  • process-wetted parts: stainless steel 1.4404, electropolished
  • modular design
  • special version for sensors with pressurizable liquid electrolyte
  • SIP and CIP capable in the process
  • SIP and CIP of calibration chamber and media routing

For applications in which pneumatic fittings are not essential, Knick has now developed the SensoGate® WA 131 MH, a modern manual sensor lock-gate fully compatible with its automatic “sister fittings”. This applies to rinsing chambers and process connections as well as the materials used.




Catalog Excerpts

Catalog Excerpt - WA 131 MH

Catalog Excerpt (en)

4060 |  SensoGate Sensor Lock-Gates
Product Description | Specifications | Product Range
PDF (file size: 1.1 MB)
Catalog Excerpt - WA 131 MH

Catalog Excerpt (en)

4061 |  Accessories for SensoGate Sensor Lock-Gate
Product Description | Specifications | Product Range
PDF (file size: 1.29 MB)
Catalog Excerpt - WA 131 MH

Catalog Excerpt (en)

4239 |  SensoGate WA 131 MH
Product Description | Specifications | Product Range
PDF (file size: 0.58 MB)


Brochure - WA 131 MH

Brochure (en)

13628 |  SensoGate - The SenSation
Manual and automatic retractable fittings with revolutionary design innovations. Also for applications in hygienic areas.
PDF (file size: 5.95 MB)


Manual - WA 131 MH

Manual (en)

4244 |  SensoGate WA 131 MH Retractable Fitting
PDF (file size: 5.97 MB)
Manual - WA 131 MH

Manual (en)

600 |  ZU 0922, ZU 0923 (Weld-in Sockets)
PDF (file size: 0.92 MB)
Manual - WA 131 MH

Manual (en)

14206 |  ZU 1045 Sensor Adapter 360/SensoGate
PDF (file size: 0.35 MB)

Certificates / Approvals

Confirmation - WA 131 MH

Confirmation (en)

7046 |  WA 131 MH
TNO Report No V9341; 2011/09
PDF (file size: 1.18 MB)
GOST Approval - WA 131 MH

GOST Approval (en)

7292 |  WA 131 MH
Document No. PPC 00_041194; 2010/11/22
PDF (file size: 1.88 MB)
EU Declaration of Conformity - WA 131 MH

EU Declaration of Conformity (en)

12351 |  SensoGate Types WA 131 M-X..., WA 131 MH-X..., WA 133 M-X...
Document No. EU210119C | 2021-01-19
PDF (file size: 0.16 MB)