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

Table 6

Analysis results on the effect of the design variables on the mass.

	Level 1	Level 2	Level 3	Level 4	Deviation	%	Rank
𝑥1	−6.896	−6.997	−7.101	−7.203	0.307	13.7	2
𝑥2	−7.067	−7.060	−7.046	−7.024	0.043	1.9	3
𝑥3	−6.105	−6.736	−7.366	−7.991	1.886	84.4	1
Total					2.236	100