Drains and Sewers

Drainage Fixture Units (DFU) connected to building drains and sewers

building drains sewers slope capacity fixture units

Note! - charts are based on clean pipes. Friction coefficients may vary with pipe material.

The Drainage Fixture Unit Values (DFU) are defined by the Uniform Plumbing Code (UPC) and can be used to determine required drainage capacities from fixtures and service systems.

Related Topics

  • Water Systems - Hot and cold water service systems - design properties, capacities, sizing and more

Related Documents

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