公称直径 DN	产品编号NO.		外形尺寸(mm)
	ABS	UPVC	D	d	Z	D1	B	L	S
15	YL11.15.21.15	YL21.15.21.15	28	20	16	1/2"	28	34	16
20	YL11.15.21.20	YL21.15.21.20	33	25	20	3/4"	34	40	18
25	YL11.15.21.25	YL21.15.21.25	40	32	22	1"	41	47	21
32	YL11.15.21.32	YL21.15.21.32	50	40	27	1-1/4"	50	54	24
40	YL11.15.21.40	YL21.15.21.40	61	50	31	1-1/2"	65	62	27
50	YL11.15.21.50	YL21.15.21.50	75	63	38	2"	75	69	27