Mô tả
Nominal Diameter, D
L 1
L 2
D 2
□
JIS Standard HSS-E
NPT 1/16 X 27
55
17.5
8
6
NPT 1/8 X 27
55
19
8
6
NPT 1/4 X 18
62
28
11
9
NPT 3/8 X 18
65
28
14
11
NPT 1/2 X 14
80
35
18
14
NPT 3/4 X 14
85
35
23
17
NPT 1" X 11.5
95
45
26
21
NPT 1.1/4 x 11.5
105
45
32
26
NPT 1.1/2 x 11.5
110
45
38
29
NPT 2" x 11.5
120
50
46
35
DIN - FORM C
NPT 1/16 X 27
90
20
6
4.9
NPT 1/8 X 27
90
20
7
5.5
NPT 1/4 X 18
100
22
11
9
NPT 3/8 X 18
100
22
12
9
NPT 1/2 X 14
125
28
16
12
NPT 3/4 X 14
140
28
20
16
NPT 1" X 11.5
160
38
25
20
NPTF
NPTF 1/16 X 27
55
19
6.5
5
NPTF 1/8 X 27
55
19
8
6
NPTF 1/4 X 18
62
28
11
9
NPTF 3/8 X 18
65
28
14
11
NPTF 1/2 X 14
80
35
18
14
NPTF 3/4 X 14
85
35
23
17
NPTF 1" X 11.5
95
45
26
21
NPTF 1.1/4 x 11.5
105
45
32
26
NPTF 1.1/2 x 11.5
110
45
38
29
NPTF 2" x 11.5
120
50
46
35
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