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Engineering ToolBox > CPVC Pipes - Support Spacing
Maximum support spacing for CPVC - Chlorinated Poly Vinyl Chloride - pipes depends on the operating temperature. Maximum spacing between supports at different temperatures can be found in the tables below:
| CPVC - Wall Schedule 40 - Support Spacing (feet) | |||
| NPS (inches) | Operating Temperature (oF) | ||
| 60 | 100 | 140 | |
| 1/2 | 5 | 4 1/2 | 4 |
| 3/4 | 5 1/2 | 5 | 4 |
| 1 | 6 | 5 1/2 | 4 1/2 |
| 1 1/4 | 6 | 5 1/2 | 5 |
| 1 1/2 | 6 1/2 | 6 | 5 |
| 2 | 6 1/2 | 6 | 5 |
| 3 | 8 | 7 | 6 |
| 4 | 8 1/2 | 7 1/2 | 6 1/2 |
| 6 | 9 1/2 | 8 1/2 | 7 1/2 |
| 8 | 9 1/2 | 8 1/2 | 7 1/2 |
| CPVC - Wall Schedule 80 - Support Spacing (feet) | |||
| NPS (inches) | Operating Temperature (oF) | ||
| 60 | 100 | 140 | |
| 1/2 | 5 | 4 1/2 | 2 1/2 |
| 3/4 | 5 1/2 | 4 1/2 | 2 1/2 |
| 1 | 6 | 5 | 3 |
| 1 1/2 | 6 1/2 | 5 1/2 | 3 1/2 |
| 2 | 7 | 6 | 3 1/2 |
| 3 | 8 | 7 | 4 |
| 4 | 9 | 7 1/2 | 4 1/2 |
| 6 | 10 | 9 | 5 |
| 8 | 10 | 9 | 5 |
Chlorinated Poly Vinyl Chloride - CPVC - is a thermoplastic pipe and fitting material made with CPVC compounds meeting the requirements of ASTM Class 23447 as defined in ASTM Specification D1784.
CPVC applications are for potable water distribution, corrosive fluid handling in industry, and fire suppression systems.