Length	Square Head Plug
Min
DN	Pipe Size	A	Height of Square (Min.)	Width Flat (Min.)
			B	C
6	1/8″	10	6	7
8	1/4″	11	6	10
10	3/8″	13	8	11
15	1/2″	14	10	14
20	3/4″	16	11	16
25	1″	19	13	21
32	1-1/4″	21	14	24
40	1-1/2″	21	16	28
50	2″	22	18	32
65	2-1/2″	27	19	36
80	3″	28	21	41
100	4″	32	25	65