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Horizontal Pipe Hanger Supports - Spacing and Rod Size

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Recommended maximum space between hangers for straight horizontal pipes and tubes are indicated in the table below. The values does not apply where loads are concentrated with flanges, valves, specialties, etc. A common rule of thumb is to support loads of this type with hangers on both sides of the load.

Horizontal Pipe Hanger Supports - Spacing and Rod Sizes
Nominal Diameter Pipe
Recommended maximum space between Hangers (feet)
Recommended Rod Size (inches)
Standard Steel PipeCopper Tube
WaterSteamWaterCopperStainless Steel
1/2 7 8 5 3/8 3/8
3/4 7 9 5 3/8 3/8
1 7 9 6 3/8 3/8
1 1/2 9 12 8 3/8 3/8
2 10 13 8 3/8 3/8
2 1/2 11 14 9 1/2 1/2
3 12 15 10 1/2 1/2
4 14 17 12 1/2 5/8
6 17 21 14 5/8 3/4
8 19 24 16 3/4 3/4
10 22 26 18 3/4 7/8
12 23 30 19 3/4 7/8
14 25 32 1
16 27 35 1
18 28 37 1
20 30 39 1-1/4
24 32 42     1-1/4
  • 1 ft (foot) = 0.3048 m

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