NPT (ANSI SCH80)
|
Outside Dia
|
Socket Type
|
Structural Diameter
|
Size
|
Do
|
d1
|
d2
|
I
|
d
|
T
|
S
|
L
|
B
|
NPT
|
1/2″
|
30.5
|
21.54
|
21.23
|
24.22
|
14
|
9
|
18.5
|
50
|
36
|
1/2″
|
3/4
|
35
|
26.87
|
26.57
|
27.4
|
19
|
9
|
14.5
|
50
|
41
|
3/4″
|
1″
|
44
|
33.66
|
33.27
|
30.58
|
24
|
9
|
21
|
59
|
50
|
1″
|
1-1/4″
|
54
|
42.42
|
42.04
|
34.75
|
32
|
9
|
19
|
61
|
60
|
1-1/4″
|
1-1/2″
|
60
|
48.56
|
48.11
|
37.93
|
38
|
9
|
27
|
72
|
65
|
1-1/2″
|
2″
|
73
|
60.63
|
60.17
|
41.1
|
50
|
10
|
27
|
77
|
80
|
2″
|
2-1/2″
|
88
|
73.38
|
72.85
|
47.45
|
61
|
11.5
|
40
|
97
|
95
|
2-1/2″
|
3″
|
105
|
89.31
|
88.70
|
50.63
|
73
|
14
|
41.5
|
104
|
115
|
3″
|
4″
|
132
|
114.80
|
114.10
|
60.15
|
96
|
14
|
44.5
|
116
|
145
|
4″
|
|

|
PT (ANSI SCH80)
Outside Dia
|
Socket Type
|
Structural Diameter
|
Size
|
Do
|
d1
|
d2
|
I
|
d
|
T
|
S
|
L
|
B
|
PT
|
1/2″
|
30.5
|
21.54
|
21.23
|
24.22
|
14
|
9
|
18.5
|
50
|
36
|
1/2″
|
3/4
|
35
|
26.87
|
26.57
|
27.4
|
19
|
9
|
14.5
|
50
|
41
|
3/4″
|
1″
|
44
|
33.66
|
33.27
|
30.58
|
24
|
9
|
16.5
|
55
|
50
|
1″
|
1-1/4″
|
54
|
42.42
|
42.04
|
34.75
|
32
|
9
|
19
|
61
|
60
|
1-1/4″
|
1-1/2″
|
60
|
48.56
|
48.11
|
37.93
|
38
|
9
|
19
|
64
|
65
|
1-1/2″
|
2″
|
73
|
60.63
|
60.17
|
41.1
|
50
|
10
|
21
|
71
|
80
|
2″
|
2-1/2″
|
88
|
73.38
|
72.85
|
47.45
|
61
|
11.5
|
32
|
89
|
95
|
2-1/2″
|
3″
|
105
|
89.31
|
88.70
|
50.63
|
73
|
14
|
32
|
95
|
115
|
3″
|
4″
|
132
|
114.80
|
114.10
|
60.15
|
96
|
14
|
38
|
110
|
145
|
4″
|
|

|
NPT&PT (GBPN10/DIN PN16)
Size
Nom
|
1/2″
(15mm)
|
3/4″
(20mm)
|
1″
(25mm)
|
1-1/4″
(32mm)
|
1-1/2″
(40mm)
|
2″
(50mm)
|
∮d1
|
20.3
|
25.3
|
32.3
|
40.3
|
50.3
|
63.3
|
∮d2
|
19.9
|
24.9
|
31.9
|
39.9
|
49.9
|
62.9
|
∮D
|
30
|
33
|
42
|
51
|
61
|
74
|
I
|
16
|
19
|
22
|
26
|
31
|
38
|
L
|
19
|
21.5
|
24
|
26
|
27
|
31.5
|
T
|
NPT
|
1/2″-14 /
|
3/4″-14 /
|
1″-1.5 /
|
1-1/4″-11.5/
|
1-1/2″-11.5/
|
PT
|
1″-11 /
|
1-1/4″-11/
|
1-1/2″-11/
|
2″-11/
|
|

|