Filled Pipe Support Load per Hanger
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.
Formula and source
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.
Audience
This tile is built for trades and the adjacent professions in the Plumbing and Gas group. The interactive calculator runs entirely in your browser. No account, no fee, no advertising, no tracking.
Related tools
Posture
Rough Logic answers the math question the working professional asks on the job. The site is a calm, fast, ad-free, account-free, ever-free reference. It does not interpret code. It does not replace the licensed professional. It does not store your inputs. The Authority Having Jurisdiction governs all installations and inspections.