Calculation of Orifice Tube Diameter -- ORIFICE TUBE = I.D.
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Determine the orifice tube (D) and verify through calculation that it is larger than the required inner diameter (Dx = inner diameter of the tube in meters).
A = π/4 × D = 3.1416/4 × 0.20 × 0.20 = 0.03142 m² → 0.032 m²
Dx = 2 × (Qc / ((2 × g × H)⁰.⁵ × π × C))⁰.⁵
Qc = Permissible discharge (m³/sec), g = Acceleration due to gravity (m/sec²), H = Design water depth (m), C = Flow coefficient
A = π/4 × D = 3.1416/4 × 0.20 × 0.20 = 0.03142 m² → 0.032 m²
Dx = 2 × (Qc / ((2 × g × H)⁰.⁵ × π × C))⁰.⁵
Qc = Permissible discharge (m³/sec), g = Acceleration due to gravity (m/sec²), H = Design water depth (m), C = Flow coefficient


| Dx | m |
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