Filled Pipe Support Load per Hanger
The load each pipe hanger carries: pipe, fluid, and insulation over its spacing.
Example
You enter
- Outside diameter (in) 4.5
- Wall thickness (in) 0.237
- Pipe material density (lb/ft3; steel 490) 490
- Fluid density (lb/ft3; water 62.4) 62.4
- Insulation density (lb/ft3) 6
- Hanger spacing (ft) 14
You get
- Filled weight per foot 16.32 lb/ft
- Load per hanger 228 lb
Details, formula, and sources
The operating load each hanger carries: empty pipe + contained fluid + insulation weight per foot (from the cross-section and densities) times the hanger spacing (4 in Sch 40 water-filled at 14 ft -> 16.3 lb/ft, 228 lb/hanger). The MSS SP-58 operating support load that every hanger, rod, and attachment is then sized to. Bundled pipe weights are nominal mill values, water at 62.4 lb/ft^3; concentrated loads (valves, flanges) are added separately.
empty_lbft = (pi/4)(OD^2 - ID^2)/144 x pipe_density; fluid_lbft = (pi/4)(ID^2)/144 x fluid_density; insul_lbft = (pi/4)((OD + 2 thk)^2 - OD^2)/144 x insul_density; filled = empty + fluid + insul; per_hanger = filled x spacing.
First-principles cross-section x density; the MSS SP-58 operating support load the result feeds, by name. Not edition-bound.
The support load is a pure cross-section-times-density buildup; the standard pipe weights and water density are public.
Estimate. AHJ and licensed professional govern.
Field names used by the API: od_in, wall_in, pipe_density, fluid_density, insul_density, spacing_ft, filled_lbft, per_hanger_lb
- Pipe weight computed from the entered OD/wall and material density (steel 490, copper 558 lb/ft^3); nominal mill valuesfirst-principles / mill dimensions
- Water density contents taken at 62.4 lb/ft^3 unless a different fluid density is enteredfirst-principles
- Concentrated loads valves, flanges, and other point loads are added to the per-hanger load separatelyMSS SP-58