• Nov 3, 2025 obround flange calculation : The length of the straight section (L_straight): L_straight = L_total - 2 R The total length: L_total = L_straight + 2 R For example, if L_total = 250 mm: Then, L_straight = 250 mm - 2 50 mm = 150 mm Obround Flange Calculation for Load and Pressure Capacity Ensuring the flange can wit BY Carlton Runolfsson II