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Asbestos cement water pipes - inside diameter
2

Asbestos cement water pipes - inside diameter

Asbestos cement water pipes - inside diameter

(OP)
Does anyone have any literature citations or experience on what the INSIDE diameter should be for asbestos cement water pipes with the following NOMINAL diameters:  6 inches (152 mm), 8 inches (203 mm), 10 inches (254 mm), and 12 inches (305 mm)?

RE: Asbestos cement water pipes - inside diameter

The inside diameter IS the nominal diameter, per AWWA C400-93, with a tolerance of +/-5% on the average ID.

RE: Asbestos cement water pipes - inside diameter

JStephen is correct. +/-5%.

The old Johns Manville catalog has the following for ID's on their pressure class pipe.

Nominal   Class 100    Class 150    Class 200
4          4.00           4.00         4.00
6          6.00           5.85         5.70
8          8.00           7.85         7.60
10        10.00          10.00         9.63
12        12.00          12.00        11.56
14        13.59          14.00        13.59
16        15.50          16.00        15.50

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