Therm-X-Trol Sizing Chart

Specifications
Model
Number
Tank
Volume
(Gallons)
Max.
Accept.
Volume
(Gallons)
A
Diameter
(Inches)
B
Height
(Inches)
System
Connection
Shipping
Weight
(lbs.)
ST-5 2.0 0.9 8 13 ¾ NPTM 5
ST-8 3.2 1.9 9 15 ¾ NPTM 7
ST-12 4.4 3.2 11 15 ¾ NPTM 9
ST-25V 10.3 10.3 15 19 ¾ NPTF 23
ST-30V 14.0 11.3 15 24 ¾ NPTF 25
ST-42V 20.0 11.4 15 32 ¾ NPTF 33
ST-60V 34.0 34.0 22 30 1¼ NPTF 61
ST-80V 44.0 33.9 22 36 1¼ NPTF 69
ST-180V 62.0 34.1 22 47 1¼ NPTF 92
ST-200V 81.0 33.2 22 56 1¼ NPTF 103
ST-210V 86.0 46.4 26 47 1¼ NPTF 123
ST-5, ST-8, ST-12
ST-25V through ST-210V
Stainless Steel System Connection.
Maximum Operating Temperature: 200°F.
Maximum Working Pressure 150 psig. Factory Pre-charge: 40 PSIG.
B
A
B
A
Water Heater Expansion Tanks