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Air Duct Heel-Tapped Elbow, 90 Degree

According to 2001 ASHRAE Fundamentals Handbook C34, calculation of the pressure loss in the 90 ° heel shaped parting part at the elbow on the ventilation system.

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Unit System:
Flow rate-Main (Qc):
Flow rate-branch (Qb):
Input ∅Dc: mm
Output ∅Db: mm
Branch ∅Ds: mm
Fluid Temperature: °C
Sound insulation: