球阀            单位:万元
	压力(MPa)	4.8	6.4	10.0
公称直径(mm)
300		7.8	9.5	11.5
400		10.3	12.4	15.0
500		13.65	16.52	19.99
600		21.69	26.25	31.77
650		26.06	31.5	38.02
700		30.08	36.41	44.1
800		40.34	48.83	59.08
900		54.71	66.23	80.06
1000		69.08	83.63	101.03
1100		80.6	97.55	117.73
1200		96.93	111.2	134.4
1300		106.12	128.52	155.21
1400		120.94	146.37	176.72
1500		138.74	167.79	202.71
1600		156.45	189.21	228.69