Amtrol ST-5 Thermal Expansion Tank 2 Gallon

Flexcon PH5 Thermal Expansion Tank 2 GallonShow Picture 1Show Picture 2Show Picture 3
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Part Number: ST-5
This item is no longer available. We have replaced it with:
Amtrol Therm-X-Span T-5 Thermal Expansion Tank 2 Gallon

Amtrol ST-5 Thermal Expansion Tank 2 Gallon Features:

The Amtrol ST-5 2 Gallon Thermal Expansion Tank helps to control pressure build-up in closed, hot water systems. The ST-5 features a butyl diaphragm and a stainless steel system connection. 

  • Butyl diaphragm 
  • Eliminates wasted energy and water
  • 3/4" NPTM stainless steel connection
  • Max operation temperature:  200°F
  • Max working pressure:  150 psi
  • Pre-charged to 40 psi

Note: Be sure to measure the system water pressure using a water pressure gauge, and make sure that the air pressure in the thermal expansion tank is the same as the system pressure. The thermal expansion tank is pre-charged to 40 psi. Verify the charge of the tank using a tank pressure gauge.

Amtrol ST-5 Thermal Expansion Tank Specifications
Amtrol ST-5 Thermal Expansion Tank Installation Instructions
Tank Specifications
2 Gallons
40 psi
3/4" NPTM Stainless Steel
13 "
8 "
5 lbs
Operating Conditions
200 °F
150 psi
NSF Certified to Standard 61
5 year limited warranty
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