Standard ASME Expansion Tanks
Specs, Drawings

Carbon Steel Expansion Tanks

  • EXPANSION TANK: A vessel that holds the extra volume of hot water in a system due to thermal expansion and allows it back into the system when it cools down.
  • Industry standard sizes are from 15 to 400 U.S. gallons.
  • Finished in shop primer. Galvanizing Option is Available.

Expansion Tank Specs and Drawing List

  • Sizes: 12″ to 36″ Outside Diameter
  • 125 and 150 Psig Working Pressure.
  • Material Pricing Subject To Change Based On Market Volatility
    Resulting From Implementation Of Section 232 Tariffs And Availability

Standard Expansion Tank Prices, Specs

GALLSSIZEWT#SQ.FTDRAWINGSPRICE US$
1512" x 34"60#9.5
2412" x 52"86#14
3014" x 48"93#16
4016" x 51"103#19
6020" x 50"130#24
8020" x 64"158#29
10020" x 75"221#34
12024" x 65"235#37
16024" x 85"297#47
21530" x 75"373#53
24030" x 83"414#59
30036" x 75"503#64
40036" x 99"637#83

Standard Expansion Tank Drawings, Connections

CAP. GALLSDIA INO.A.W. P. PsigDRAWINGSCDEFGH
1512"34"1501/2"3/4"3/4"1/2"1/2"-
2412"52"1501/2"3/4"3/4"1/2"1/2"-
3014"48"1501/2"1/2"1/2"1/2"1/2"1 1/2"
4016"51"1501/2"1/2"1/2"1/2"1/2"1 1/2"
6020"50"1501/2"1/2"1/2"1/2"1/2"2"
8020"64"1501/2"1/2"1/2"1/2"1/2"2"
10020"75"1501/2"1/2"1"1"1"2"
12024"65"1501/2"-1"1"1"2"
16024"85"1501/2"-1"1"1"2"
21530"75"1503/4"-1 1/2"1"1 1/2"2"
24030"83"1503/4"-1 1/2"1"1 1/2"2"
30036"75"1253/4"-2"1"2"2"
40036"99"1253/4"-2"1"2"2"

SEE STANDARD VERTICAL
AND CUSTOM HORIZONTAL BUFFER TANKS

Rev. 021620211741