3719 pH/ORP Wet-Tap

The Signet 3719 pH/ORP Wet-Tap allows installation and removal of pH or ORP electrodes without the need for process shutdown during routine electrode maintenance and calibration. Process isolation is achieved with a double O-ring seal on a unique and compact retraction assembly; no separate valve is required. A camactivated automatic locking mechanism, SafeLoc™, and the short stroke design help to assure operator safety. The wet-tap unit can be mounted at any angle and can be used with the Signet 2756-WT/WTP and 2757 WT/WTP DryLoc Wet-Tap electrode.

  • Wetted Materials: CPVC, FPM
  • Connection: 1.5 or 2 inch NPT or ISO Process Threads
  • Additional Features: Use only with either the 2716 & 2717 or 2756 & 2757 Wet-Tap series electrodes
  • Applications: Water treatment, water quality monitoring, etc.


  • Large reference volume for long electrode life
  • Sealed pneumatic dampening for smooth and safe operation
  • pH electrode includes integrated temperature sensor
  • Protects electrode sensing surface from breakage
  • SafeLoc™: Camactivated automatic locking mechanism (patent pending)
  • Space saving 45 mm (1.75 in.) short-stroke design
  • Removes electrodes from pressurized systems for routine service or replacement
  • Low profile Clamp-on Saddle Fittings for convenient installation in ASTM pipe sizes 2.5 to 12 in.
  • Compatible with DryLoc Electrodes for use with 2750 pH/ORP Sensor or 2760 DryLoc pH/ORP Preamplifiers and Connectors
  • Automatic process isolation upon electrode retraction - no separate valve required.

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