For balancing water flows With a B&G Thermoflo Indicator installed in each circuit of a Hydronic System, flows can be accurately balanced according to design requirements.

Insures Proper Flow Through:
1. Multiple heating or cooling circuits.
2. Primary secondary bridges.
3. Boilers or chillers.
4. Condensers.
5. Air handling units.
6. Heat exchangers.
7. Process heating or cooling circuits.
8. Cooling towers.

Large systems using direct return and heating-and- cooling systems in particular require this device. Thermoflo Indicators can be installed wherever and when-ever Hydronic flow rate information is desired.
Features and Benefits

Insures Economical Use of Horsepower
Built To Last. Ruggedly constructed to 125 lbs. (862 kPa) working pressure.
Quiet Operation
Individually Calibrated
Low Pressure Drop
Economical To Install
Shutoff Valves
Multi-Circuit Hydronic Systems


Installation/Operation Manuals

General Selection Tools:

  • ESP-PLUS for B&G Centrifugal Pumps, Booster Pumps, Pump Accessories, and Air Separator
  • ESP-PARTS for replacement parts selection
  • CAD Drawings for 2D and 3D dimensional drawings in many formats

Heat Exchanger Product Selection

Steam + Water Pressure Reducing Values

Sizing Tools:

Report Bugs/Request Enhancements
Please email the following address to report issues and request enhancements:

Consult your local Bell & Gossett Representative for additional assistance.

Bell & Gossett is a leading manufacturer of pumps, valves, heat exchangers, and accessories for plumbing, wastewater, and HVAC—including steam and heat transfer—applications. To build and operate an efficient water system, you need both the right products and experts who know the application. Here, you can access Bell & Gossett’s trusted network of partners who have the experience you need to get the job done right.

To find a Bell & Gossett Representative in Canada select your Province: