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Truflo® ‘Old Bag’ Plastic Pressure Gauge & Isolator

Truflo® ‘Old Bag’ Plastic Pressure Gauge & Isolator


  • All Plastic (Gauge + Isolator) Filled

  • Heavy Duty Design; Simple to Install

  • Completely Corrosion Resistant

  • Designed to Act as Visual Pressure Alert for Bag/Filter Change-Out

  • Extra Large Colored Display

  • Reduces Pressure Surges caused by Water Hammer or Metering Pump Pulsations

  • Highest Accuracy in Industry 1.5%

  • Factory Pre-Filled Glycerin or Silicone No Filling Required

  • One-Piece Molded Design (No Assembly)

  • Suitable for Corrosive Media + Slurries





Dial Diameter Large 2-1/2" (Big Numbers-Clear Markers)
Mounting Direct Mount, Bottom Connection FNPT 1/2"
Housing PVDF or Polypro - Viton or PTFE Diaphragm - One Piece�Molded Design (No Assembly or Filling Required)
Lens Safety Glass
Dial Red & Black Scale White Background, dial arc 270º
Bourdon Tube-SS316 (Non Wetted)
Diaphragm (wetted part) - FPM (Standard)
Movement SS316 (Non Wetted)
Gauge Red, Yellow, Green Moveable Plastic Markers-Pressure�Range Pointers Fitted on the Bezel
Connection 1/2" FNPT
Filling Options: Glycerin or Silicon Filled
Accuracy +/-1.5% F.S.
Operating temperature Max. Working Temp. PVDF-195 F, PP-170ºF
Pressure Range Standard range 0-60 / 0-100 / 0-160 PSI (Second Scale: Bar)�Other units available, e.g., bar, MPa, etc.


Old Bag Data Sheet


About Us

Metex Corporation Limited has been providing superior products and services to the process control, chemical treatment, waste water, industrial and manufacturing industries for over 25 years. It is our goal to continually provide our customers with the best possible equipment, technology, and service.


Our Products

Dataloggers, sensors, pumps, recorders, hand held instruments, flow instrumentation, level controls, valves, instrumentation, containers, tanks, transmitters, data loggers, digital indicators, mixers and agitators, pressure intrumentation, analyzers and controllers for a variety of industrial applications such as water quality, pH/ORP and more.

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Water Analyzers and Controllers, Wireless Products, Corrosion Monitoring Equipment, Cooling Tower and Boiler Controllers, a wide variety of Pumps, Valves, Dataloggers and Recorders, HVAC, Instrumentation, Skids and Systems, Containers and Tanks from world leading manufacturers are products you will find on this site.

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