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PVC Pipes - Pressure Ratings vs. Size

Maximum operating and required burst pressure of PVC - Polyvinyl Chloride - pipe fittings.

Maximum operating and required minimum bursting pressures at 73 oF (23 oC) for PVC pipe fittings according ASTM D1785 "Standard Specification for Poly Vinyl Chloride (PVC) Plastic Pipes Schedules 40 and 80 are indicated in the diagram and table below:

PVC pipes - bursting and operating pressure limits diagram

 

PVC Pipes - Pressure Ratings vs. Size
Nominal Pipe Size
(inches)
Required Minimum Burst Pressure
(psi)
Maximum Operating Pressure
(psi)
Schedule 401)Schedule 802)Schedule 40Schedule 80
1/2 1910 2720 358 509
3/4 1540 2200 289 413
1 1440 2020 270 378
1 1/4 1180 1660 221 312
1 1/2 1060 1510 198 282
2 890 1290 166 243
2 1/2 870 1360 182 255
3 840 1200 158 225
4 710 1110 133 194
5 620 1040 117 173
6 560 930 106 167
8 500 890 93 148
10 450 790 84 140
12 420 600 79 137
  1. ASTM D2466 - 06 Standard Specification for Poly(Vinyl Chloride) (PVC) Plastic Pipe Fittings, Schedule 40
  2. ASTM D2467-04e1 Standard Specification for Poly(Vinyl Chloride) (PVC) Plastic Pipe Fittings, Schedule 80
  • 1 psi (lb/in2) = 6,894.8 Pa (N/m2)
  • 1 inch = 25.4 mm

Note! The maximum operating pressures derates with temperature. At the maximum operating temperature for PVC - 140 oF (60 oC) - the strength is derated to approximately 20% of the strength at 73 oF (23 oC).

Be aware that maximum operating pressures varies with the fittings design. Consult the manufacturing data.

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