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如何计算Pressure Drop

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Pressure Drop Calculator helps contractors and tradespeople accurately size, spec, and estimate materials and systems.

公式

ΔP = f × (L/D) × (ρV²/2) using Darcy-Weisbach

分步指南

  1. 1Determine friction factor, pipe length, diameter, and flow velocity
  2. 2Apply the formula using your project measurements
  3. 3Add required safety factors or waste allowances per code

例题解析

输入
100 ft of 1 inch pipe, 5 fps, water
结果
ΔP ≈ 4.3 PSI per 100 feet

常见错误注意事项

  • Not applying code-required safety factors or derating
  • Forgetting to account for waste and cut losses in material estimates

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