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Recommended Sizes of Water Supply Lines
Sizing water supply pipes
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Water supply pipe lines should be sized according expected demand and not the total theoretical demand from all fixtures at the same time. Due to the intermittent use of the fixtures it may be difficult to predict a realistic demand.
The values below are relevant for supply lines to common systems like homes, offices, nursing homes etc.
| Copper Pipe Size | Total Maximum Theoretical Demand Summarized (liter/s) |
Maximum Expected Demand (liter/s) |
| DN (mm) |
||
| 12 | 0.2 | 0.2 |
| 15 | 0.8 | 0.4 |
| 18 | 1.6 | 0.5 |
| 22 | 4.0 | 0.6 |
| 28 | 15 | 1.1 |
| 35 | 30 | 1.8 |
| 42 | 65 | 2.8 |
| 54 | 130 | 4.5 |
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Related Topics
- Water Systems - Hot and cold water systems - design properties, capacities, sizing and more
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Related Documents
- Copper Tubes - ASTM B88M - Copper Water and Gas Tube according ASTM B 88M - metric units
- Sizing Water Supply Lines - Sizing water supply and service lines based on Water Supply Fixture Units (WSFU)
- Water Supply - Calculating Expected Demand - Calculating of expected demand in water supply service lines
- Water Supply Fixture Units - WSFU - WSFU are used to determine water supply to fixtures and their service systems
