Pipes and Tubes - Water Content

The water content in steel pipes and copper tubes

Steel Pipes

Nominal Pipe Size
(in)
Water Content (gal/ft)
Schedule 40Schedule 80
1/8 0.0030 0.0019
1/4 0.0054 0.0037
3/8 0.0099 0.0073
1/2 0.0158 0.0122
3/4 0.0277 0.0225
1 0.0449 0.0374

Copper Tubes

Nominal Pipe Size
(in)
Water Content (gal/ft)
Type KType LType M
1/8 0.0014 0.0016 0.0016
1/4 0.0039 0.0040 0.0043
3/8 0.0066 0.0075 0.0083
1/2 0.0113 0.0121 0.0132
5/8 0.0173 0.0181 0.0194
3/4 0.0226 0.0251 0.0268
1 0.0404 0.0429 0.0454
  • 1 in = 25.4 mm
  • 1 ft = 0.3048 m
  • 1 Gallon (U.S.) = 3.785x10-3 m3 = 3.785 dm3 (liter) = 231 in3 = 0.13368 ft3 = 4.951x10-3 yd3 = 0.8327 Imp. gal (UK) = 4 Quarts = 8 Pints

Related Topics

  • Pipe Sizing - Sizing steam and condensate pipes - pressure loss, recommended velocity, capacity and more

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