Equal lateral tee branch pdf
4″ Header OD = 114 mm
4″ Half OD = 57 mm
4″ Branch ID = 113 mm
4″ Branch half ID = 56.5 mm
Degree = 45°
16 Center Line = 360° ÷ 16 = 22.5°
Cutback Formula :
(Header half OD – √(Header half OD² – (Sin(D) × Branch half ID)²)) ÷ Sin(Y) + Branch half ID (1-Cos(D)) ÷ Tan(Y)
22.5° = (57 – √(57² – (Sin(22.5°) × 56.5)²)) ÷ Sin(45°) + 56 (1-Cos(22.5°)) ÷ Tan(45°) = 10.32 mm
45° = (57 – √(57² – (Sin(45°) × 56.5)²)) ÷ Sin(45°) + 56 (1-Cos(45°)) ÷ Tan(45°) = 39.66 mm
67.5° = (57 – √(57² – (Sin(67.5°) × 56.5)²)) ÷ Sin(45°) + 56 (1-Cos(67.5°)) ÷ Tan(45°) = 83.1 mm
90° = (57 – √(57² – (Sin(90°) × 56.5)²)) ÷ Sin(45°) + 56 (1-Cos(90°)) ÷ Tan(45°) = 126.45 mm
112.5° = (57 – √(57² – (Sin(112.5°) × 56.5)²)) ÷ Sin(45°) + 56 (1-Cos(112.5°)) ÷ Tan(45°) = 126.35 mm
135° = (57 – √(57² – (Sin(135°) × 56.5)²)) ÷ Sin(45°) + 56 (1-Cos(135°)) ÷ Tan(45°) = 119.56 mm
157.5° = (57 – √(57² – (Sin(157.5°) × 56.5)²)) ÷ Sin(45°) + 56 (1-Cos(157.5°)) ÷ Tan(45°) = 114.72 mm
180° = (57 – √(57² – (Sin(190°) × 56.5)²)) ÷ Sin(45°) + 56 (1-Cos(180°)) ÷ Tan(45°) = 113 mm
Equal lateral tee branch pdf
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