Non-Metallic Pipe Dimensions

Non-Metallic & Thermoplastic Pipe Data

Dimensions, pressure ratings, and temperature derating factors for thermoplastic (uPVC, CPVC, PP-R, PVDF), FRP, and non-ferrous piping materials.

Reference Selector

Material & Specification Selection

Pressure Class / Schedule

Schedule 40 (11 sizes available)

ASTM D1785-2015
Schedule 40 dimensions per ASTM D1785-2015
Pipe SizeOutside Dia (OD)mmWall Thick (t)mmInside Dia (ID)mmPipe Weightkg/m
21.342.7715.800.23
26.672.8720.930.30
33.403.3826.640.45
42.163.5635.050.60
48.263.6840.890.72
60.323.9152.500.97
73.025.1662.711.54
88.905.4977.932.01
114.306.02102.262.87
168.277.11154.055.04
219.078.18202.727.59
ODOutside Diameter (Specified Standard)
Wall tNominal Pipe Wall Thickness
IDInside Diameter = OD − 2t
WeightEstimated Weight of Empty Pipe

Field Joining Methods

4 Methods

Common methods used to assemble and joint this pipe material in industrial & commercial service:

  • Solvent cement (ASTM D2855)
  • Threaded — Schedule 80 only (50% pressure de-rate)
  • Flanged (Van Stone / full-face)
  • Gasketed bell-and-spigot (large diameter)

Temperature De-rating

Factor Curve

Base pressure rating at 73 °F (23 °C) is multiplied by the de-rating factor:

73°F (23°C)
1.00
80°F (27°C)
0.88
90°F (32°C)
0.75
100°F (38°C)
0.62
110°F (43°C)
0.51
120°F (49°C)
0.40
130°F (54°C)
0.31
140°F (60°C)
0.22

Water, non-shock. Factors per Spears Manufacturing PVC/CPVC de-rating table; verify with the pipe manufacturer.

Chemical Compatibility

Ambient Temp
  • Dilute acidsGood
  • Concentrated / oxidizing acidsLimited
  • Alkalis (bases)Good
  • Salt solutionsGood
  • Oxidizers (bleach, peroxide)Good
  • Alcohols / glycolsGood
  • Aliphatic hydrocarbonsLimited
  • Aromatic / chlorinated solventsNot recommended

General class-level guidance. Always verify against specific fluid concentrations and elevated operating temperatures.

Dimensions are nominal values for preliminary sizing. Verify against the current edition of the cited standard and the manufacturer’s product data before use. Dimensions per ASTM D1785; properties are typical for uPVC (PVC Type I).