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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 |
53 Gallon Volume - 1 1/4" NTPF
ASME
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53 Gallon Volume - 2" NPTF
ASME
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