
CAP SIZE
JIS
Nominal Pipe Size (NPS)
Outside Diameter
End to End
Cap
A
B
D
E
E1
Limit Wall Thick
15
20
25
32
40
½
¾
1
1¼
1½
21.7
27.2
34.0
42.7
48.6
25.4
25.4
38.1
38.1
38.1
-
-
-
-
-
-
-
-
-
-
50
65
80
90
100
2
2½
3
3½
4
60.5
76.3
89.1
101.6
114.3
...