Effect Analysis of Design Variables on the Disc in a Double-Eccentric Butterfly Valve

Table 5

Analysis results on the effect of the design variables on the maximum stress.

	Level 1	Level 2	Level 3	Level 4	Deviation	%	Rank
𝑥1	−31.01	−30.25	−29.55	−29.07	1.93	61.7	1
𝑥2	−29.96	−29.98	−29.93	−30.01	0.09	2.8	3
𝑥3	−30.50	−30.06	−29.92	−29.39	1.11	35.5	2
Total					3.13	100