Sanitary 排水 管道 选型 — dfu 方法
排水 fixture 单位 方法 用于 选型 sanitary waste 与 vent pipes per plumbing codes.
drainagepipesizing计算器
Overview
This page provides engineering reference data and calculation tools for Sanitary Drainage Pipe Sizing — DFU Method in sanitary drainage.
Calculator
Sanitary Drainage Pipe Sizing — DFU Method Calculator
Key Formulas
The fundamental relationships for sanitary drainage pipe sizing — dfu method are described by:
Where:
- = heat transfer rate (W)
- = overall heat transfer coefficient (W/m²·K)
- = heat transfer area (m²)
- = temperature difference (K)
Notes
- Results are approximate and should be verified for critical applications
- Input values should be within reasonable engineering ranges