Browse Categories

Amtrol Therm-X-Trol

THERM-X-TROL®
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-Trol® 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 - 30 of 32 results
Page 1 of 2 Page 12movenext
Amtrol ST-5 Therm-X-Trol non-ASME Thermal Expansion Tank In-Line Models
Price: $56.48
Amtrol ST-5 Therm-X-Trol non-ASME Thermal Expansion Tank In-Line Models
2 Gallon Volume - 3/4" NPTF
Potable Water
Amtrol ST-12 Therm-X-Trol non-ASME Thermal Expansion Tank In-Line Models
Price: $78.24
Amtrol ST-12 Therm-X-Trol non-ASME Thermal Expansion Tank In-Line Models
4.4 Gallon Volume - 3/4" NPTF
Potable Water
Amtrol FT112-2 Fill-Trol Expansion Tank w/ Valve
Price: $212.62
Amtrol FT112-2 Fill-Trol Expansion Tank w/ Valve
14 Gallon Volume
Amtrol ST-25V Therm-X-Trol Non-ASME Thermal Expansion Tank - Vertical Models
Price: $265.48
ratingratingratingratingrating
Amtrol ST-25V Therm-X-Trol Non-ASME Thermal Expansion Tank - Vertical Models
10.3 Gallon Volume - 3/4" NPTF
Non-ASME
Amtrol ST-42V Therm-X-Trol Non-ASME Thermal Expansion Tank - Vertical Models
Price: $374.96
Amtrol ST-42V Therm-X-Trol Non-ASME Thermal Expansion Tank - Vertical Models
20 Gallon Volume - 3/4" NPTF
Non-ASME
Amtrol ST-60V Therm-X-Trol Non-ASME Thermal Expansion Tank - Vertical Models
Price: $505.34
Amtrol ST-60V Therm-X-Trol Non-ASME Thermal Expansion Tank - Vertical Models
34.0 Gallon Volume - 1 1/4" NPTF
Non-ASME
Amtrol ST-80V Therm-X-Trol Non-ASME Thermal Expansion Tank - Vertical Models
Price: $635.42
Amtrol ST-80V Therm-X-Trol Non-ASME Thermal Expansion Tank - Vertical Models
44 Gallon Volume - 1 1/4" NPTF
Non-ASME
Amtrol ST-180V Therm-X-Trol non-ASME Thermal Expansion Tank Vertical Models
Price: $779.65
Amtrol ST-180V Therm-X-Trol non-ASME Thermal Expansion Tank Vertical Models
62 Gallon Volume - 1 1/4" NPTF
Potable Water
Amtrol ST-210V Therm-X-Trol non-ASME Thermal Expansion Tank Vertical Models
Price: $891.54
Amtrol ST-210V Therm-X-Trol non-ASME Thermal Expansion Tank Vertical Models
86 Gallon Volume - 1 1/4" NPTF
Potable Water
Amtrol ST-200V Therm-X-Trol non-ASME Thermal Expansion Tank Vertical Models
Price: $915.50
Amtrol ST-200V Therm-X-Trol non-ASME Thermal Expansion Tank Vertical Models
81 Gallon Volume - 1 1/4" NPTF
Potable Water
Amtrol ST-5C-DD Therm-X-Trol ASME Thermal Expansion Tank - 150 PSI Max
Price: $1,272.37
Amtrol ST-5C-DD Therm-X-Trol ASME Thermal Expansion Tank - 150 PSI Max
2 Gallon Volume - 3/4" NPTM
ASME
Amtrol ST-5C-DD Therm-X-Trol ASME Thermal Expansion Tank - 175 PSI Max
Price: $1,399.16
Amtrol ST-5C-DD Therm-X-Trol ASME Thermal Expansion Tank - 175 PSI Max
2 Gallon Volume - 3/4" NPTM
ASME
Amtrol ST-12C-DD Therm-X-Trol ASME Thermal Expansion Tank - 150 PSI Max
Price: $1,662.18
Amtrol ST-12C-DD Therm-X-Trol ASME Thermal Expansion Tank - 150 PSI Max
6.4 Gallon Volume - 150 PSI
ASME
Amtrol ST-5C Therm-X-Trol ASME Thermal Expansion Tank - 250 PSI Max
Price: $1,677.08
Amtrol ST-5C Therm-X-Trol ASME Thermal Expansion Tank - 250 PSI Max
2 Gallon Volume - 3/4" NPTF
ASME
Amtrol ST-20VC-DD Therm-X-Trol ASME Thermal Expansion Tank - 150 PSI Max
Price: $1,799.95
Amtrol ST-20VC-DD Therm-X-Trol ASME Thermal Expansion Tank - 150 PSI Max
8.6 Gallon Volume - 3/4" NPTM
ASME
Amtrol ST-12C-DD Therm-X-Trol ASME Thermal Expansion Tank - 175 PSI Max
Price: $1,826.79
Amtrol ST-12C-DD Therm-X-Trol ASME Thermal Expansion Tank - 175 PSI Max
6.4 Gallon Volume - 175 PSI
ASME
Amtrol ST-30VC-DD Therm-X-Trol ASME Thermal Expansion Tank - 150 PSI Max
Price: $1,867.83
Amtrol ST-30VC-DD Therm-X-Trol ASME Thermal Expansion Tank - 150 PSI Max
14 Gallon Volume - 3/4" NPTM
ASME
Amtrol ST-20VC-DD Therm-X-Trol ASME Thermal Expansion Tank - 175 PSI Max
Price: $1,975.22
Amtrol ST-20VC-DD Therm-X-Trol ASME Thermal Expansion Tank - 175 PSI Max
8.6 Gallon Volume - 3/4" NPTM
ASME
Amtrol ST-42VC-DD Therm-X-Trol ASME Thermal Expansion Tank - 150 PSI Max
Price: $2,073.95
Amtrol ST-42VC-DD Therm-X-Trol ASME Thermal Expansion Tank - 150 PSI Max
18 Gallon Volume - 3/4" NPTM - ASME
Amtrol ST-70VC Therm-X-Trol ASME Thermal Expansion Tank - 150 PSI Max
Price: $2,620.26
Amtrol ST-70VC Therm-X-Trol ASME Thermal Expansion Tank - 150 PSI Max
34 Gallon Volume - 3/4" NPTF - ASME
Amtrol ST-60VC Therm-X-Trol ASME Thermal Expansion Tank - 150PSI Max
Price: $2,636.30
Amtrol ST-60VC Therm-X-Trol ASME Thermal Expansion Tank - 150PSI Max
25 Gallon Volume - 3/4" NPTF
ASME
Amtrol ST-70VC Therm-X-Trol ASME Thermal Expansion Tank - 250 PSI Max
Price: $3,169.92
Amtrol ST-70VC Therm-X-Trol ASME Thermal Expansion Tank - 250 PSI Max
34 Gallon Volume - 3/4" NPTF - ASME
Amtrol ST-35CL Therm-X-Trol ASME Thermal Expansion Tank - 150 PSI Max
Price: $3,586.70
Amtrol ST-35CL Therm-X-Trol ASME Thermal Expansion Tank - 150 PSI Max
10 Gallon Volume - 1" NPTF
ASME
Amtrol ST-50CL Therm-X-Trol ASME Thermal Expansion Tank - 150 PSI Max
Price: $3,633.70
Amtrol ST-50CL Therm-X-Trol ASME Thermal Expansion Tank - 150 PSI Max
13 Gallon Volume - 1" NPTF
ASME
Amtrol ST-80VC Therm-X-Trol ASME Thermal Expansion Tank - 150 PSI Max
Price: $3,739.90
Amtrol ST-80VC Therm-X-Trol ASME Thermal Expansion Tank - 150 PSI Max
53 Gallon Volume - 1 1/4" NTPF
ASME
Amtrol ST-120VC Therm-X-Trol ASME Thermal Expansion Tank - 150 PSI Max
Price: $3,926.41
Amtrol ST-120VC Therm-X-Trol ASME Thermal Expansion Tank - 150 PSI Max
68 Gallon Volume - 1 1/4" NPTF
ASME
Amtrol ST-180VC Therm-X-Trol ASME Thermal Expansion Tank - 150 PSI Max
Price: $4,093.46
Amtrol ST-180VC Therm-X-Trol ASME Thermal Expansion Tank - 150 PSI Max
77 Gallon Volume - 1 1/4" NPTF
ASME
Amtrol ST-80VC Therm-X-Trol ASME Thermal Expansion Tank - 175 PSI Max
Price: $4,119.19
Amtrol ST-80VC Therm-X-Trol ASME Thermal Expansion Tank - 175 PSI Max
53 Gallon Volume - 1 1/4" NTPF
ASME
Amtrol ST-210VC Therm-X-Trol ASME Thermal Expansion Tank - 150 PSI Max
Price: $4,299.20
Amtrol ST-210VC Therm-X-Trol ASME Thermal Expansion Tank - 150 PSI Max
90 Gallon Volume - 1 1/4" NPTF
ASME
Page 1 of 2 Page 12movenext
Shopping Cart
Your cart is empty.