Experimental study on mechanical characteristics of constant air volume valve with nozzle

By the experimental study of constant air volume valve prototype with nozzle, presents the resistance characteristics of both valve body and valve plug. Experimental results show that the resistance coefficient of valve body is relatively smaller when the apex angle of conical valve plug is 60° or 90°, the valve body can be applied to constant air volume damper, and the resistance of valve body increases with the valve plug position. The experimental result can provide references for valve body selection and design of constant air volume valve.