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DigiCalcs

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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

ステップバイステップガイド

  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

解いた例

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

避けるべきよくある間違い

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

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