Truflo GI Series Gauge Isolators allow inexpensive pressure gauges, or any other pressure instrument to be used in corrosive services. The upper chamber (gauge side)is filled with a stable fluid such as glycerin or silicone. A Teflon® diaphragm separates it from the lower chamber which receives the media under pressure. Customers can easily fill isolators and install their own gauges.




  • Easy to Mount Gauges
  • No Special Equipment is Required
  • Perfect Mate for Truflo OBS Plastic Gauges
  • Provision for Fill Port
  • Housing has a Threaded Vacuum Port for Extracting any Trapped Air during the filling process
  • High Chemical Resistance
  • Choice of Body Materials for a Wide Range of Applications
  • PTFE bonded FPM dished diaphragm for High Chemical Resistance and Sensitivity
  • Heavy Duty Design for Safety
  • Small Footprint
  • Heavy Wall Connection Ports


INLET PROCESS CONNECTION :          ½” (M) / (F) NPT / BSP / G / Flange
DIAPHRAGM :                                             PTFE Teflon®