What is the value of co-efficient of discharge for square edged circular orifice (for β = 0.3 to 0.5) ? August 27, 2021March 10, 2019 by admin What is the value of co-efficient of discharge for square edged circular orifice (for β = 0.3 to 0.5) ? A. 0.61 – 0.63 B. 0.5 – 0.75 C. 0.75 – 0.90 D. 0.35 – 0.55