Browse Categories

Therm-X-Trol

THERM-X-TROLĀ®
ST Series


Thermal expansion occurs as domestic water is heated. Left unchecked, the resulting pressure increase can cause relief valve discharge and other potentially unsafe conditions. Therm-X-TrolĀ® expansion tanks absorb this expanded water, keeping water pressure at a safe level. Available in diaphragm, full acceptance, and partial acceptance bladder designs, all Therm-X-Trol tanks are made in the USA at our ISO 9001:2008 registered facilities. ASME tanks meet Section VIII, Division I Standards.

 SPECIFICATIONS
 ASME Diaphragm Series

 Model
Number
 Tank
Volume
    (Gallons)  
   Maximum Acceptance  
Volume
(Gallons)
   Diameter  
(Inches)
 Height
   (Inches)   
   System Connection   
NPTF
(Inches)
   Shipping  
Weight
(lbs.)
 ST-5C  2.1  0.9  10  10  3/4   20
 ST-12C  6.4  3.2  12  12  3/4   34
 ST-20VC  8.0  3.2  12  19  3/4   41
    ST-30VC-150     14.0  9.0  16  19  3/4   59
 ST-30VC-175  14.0  9.0  16  19  3/4   64
 ST-42VC  18.0  11.0  16  24  3/4   71
 ST-60VC  25.0  11.0  16  32  3/4   85
 ST-70VC  34.0  11.0  16  45  3/4   99
 ST-80VC  53.0  35.0  24  37  1-1/4   224
 ST-180VC  77.0  35.0  24  49  1-1/4   285


 SPECIFICATIONS
Non-ASME Diaphragm Series

 Model
   Number  
 Tank
Volume
   (Gallons)   
   Maximum Acceptance  
Volume
(Gallons)
   Diameter  
(Inches)
 Height
   (Inches)  
 System
   Connection  
(Inches)
   Shipping  
Weight
(lbs.)
 ST-12  4.4  3.2  11  15  3/4 NPTM
 9
 ST-25V  10.3  10.3  15  19  3/4 NPTF
 23
 ST-60V  34.0  34.0  22  30  1-1/4 NPTF
 61


Displaying products 1 - 13 of 13 results
Amtrol ST-12 Therm-X-Trol Non-ASME Thermal Expansion Tank
Amtrol ST-12 Therm-X-Trol Non-ASME Thermal Expansion Tank
Price: $58.22
Amtrol ST-12 Therm-X-Trol Non-ASME Thermal Expansion Tank
4.4 Gallon Volume - 150 PSI - Non-ASME
Amtrol ST-25V Therm-X-Trol Non-ASME Thermal Expansion Tank
Amtrol ST-25V Therm-X-Trol Non-ASME Thermal Expansion Tank
Price: $155.13
Amtrol ST-25V Therm-X-Trol Non-ASME Thermal Expansion Tank
10.3 Gallon Volume - 150 PSI - Non-ASME
Amtrol ST-60V Therm-X-Trol Non-ASME Thermal Expansion Tank
Amtrol ST-60V Therm-X-Trol Non-ASME Thermal Expansion Tank
Price: $291.21
Amtrol ST-60V Therm-X-Trol Non-ASME Thermal Expansion Tank
34.0 Gallon Volume - 150 PSI - Non-ASME
Amtrol ST-5C Therm-X-Trol ASME Thermal Expansion Tank
Amtrol ST-5C Therm-X-Trol ASME Thermal Expansion Tank - 150 PSI
Price: $851.03
Amtrol ST-5C Therm-X-Trol ASME Thermal Expansion Tank - 150 PSI
2.1 Gallon Volume - 150 PSI - ASME
Amtrol ST-30VC Therm-X-Trol ASME Thermal Expansion Tank
Amtrol ST-30VC Therm-X-Trol ASME Thermal Expansion Tank
Price: $1,119.97
Amtrol ST-30VC Therm-X-Trol ASME Thermal Expansion Tank
14 Gallon Volume - 150 PSI - ASME
Amtrol ST-20VC Therm-X-Trol ASME Thermal Expansion Tank
Amtrol ST-20VC Therm-X-Trol ASME Thermal Expansion Tank
Price: $1,165.28
Amtrol ST-20VC Therm-X-Trol ASME Thermal Expansion Tank
8 Gallon Volume - 150 PSI - ASME
Amtrol ST-42VC Therm-X-Trol ASME Thermal Expansion Tank
Amtrol ST-42VC Therm-X-Trol ASME Thermal Expansion Tank
Price: $1,196.52
Amtrol ST-42VC Therm-X-Trol ASME Thermal Expansion Tank
18 Gallon Volume - 150 PSI - ASME
Amtrol ST-12C Therm-X-Trol ASME Thermal Expansion Tank
Amtrol ST-12C Therm-X-Trol ASME Thermal Expansion Tank
Price: $1,273.46
Amtrol ST-12C Therm-X-Trol ASME Thermal Expansion Tank
6.4 Gallon Volume - 150 PSI - ASME
Amtrol ST-60VC Therm-X-Trol ASME Thermal Expansion Tank
Amtrol ST-60VC Therm-X-Trol ASME Thermal Expansion Tank
Price: $1,389.01
Amtrol ST-60VC Therm-X-Trol ASME Thermal Expansion Tank
25 Gallon Volume - 150 PSI - ASME
Amtrol ST-70VC Therm-X-Trol ASME Thermal Expansion Tank
Amtrol ST-70VC Therm-X-Trol ASME Thermal Expansion Tank
Price: $1,503.00
Amtrol ST-70VC Therm-X-Trol ASME Thermal Expansion Tank
34 Gallon Volume - 150 PSI - ASME
Amtrol ST-30VC-175 Therm-X-Trol ASME Thermal Expansion Tank
Amtrol ST-30VC-175 Therm-X-Trol ASME Thermal Expansion Tank
Price: $1,864.99
ratingratingratingratingrating
Amtrol ST-30VC-175 Therm-X-Trol ASME Thermal Expansion Tank
14 Gallon Volume - 175 PSI - ASME
Amtrol ST-180VC Therm-X-Trol ASME Thermal Expansion Tank
Amtrol ST-180VC Therm-X-Trol ASME Thermal Expansion Tank
Price: $2,243.48
Amtrol ST-180VC Therm-X-Trol ASME Thermal Expansion Tank
77 Gallon Volume - 150 PSI - ASME
Amtrol ST-80VC Therm-X-Trol ASME Thermal Expansion Tank
Amtrol ST-80VC Therm-X-Trol ASME Thermal Expansion Tank
Price: $2,256.75
Amtrol ST-80VC Therm-X-Trol ASME Thermal Expansion Tank
53 Gallon Volume - 150 PSI - ASME
Shopping Cart
Your cart is empty.