公制螺纹(60°牙型角普通螺纹) Ø:接头内孔孔径
M1 |
d3 |
d4+0.4 |
d5 |
a1最大 |
b1最小 |
t1最小 |
Ø(L) |
Ø(S) |
W |
M10×1 |
14 |
15 |
14 |
1 |
8 |
13.5 |
4 |
– |
0.1 |
M12×1.5 |
17 |
18 |
17 |
1.5 |
12 |
18.5 |
6 |
4 |
0.1 |
M14×1.5 |
19 |
20 |
19 |
1.5 |
12 |
18.5 |
7 |
5 |
0.1 |
M16×1.5 |
21 |
23 |
21.9 |
1.5 |
12 |
18.5 |
9 |
7 |
0.1 |
M18×1.5 |
23 |
25 |
23.9 |
2 |
12 |
18.5 |
11 |
8 |
0.1 |
M20×1.5 |
25 |
27 |
25.9 |
2 |
14 |
20.5 |
– |
10 |
0.1 |
M22×1.5 |
27 |
28 |
27 |
2.5 |
14 |
20.5 |
14 |
12 |
0.1 |
M26×1.5 |
31 |
33 |
31.9 |
2.5 |
16 |
22.5 |
18 |
– |
0.2 |
M27×2 |
32 |
33 |
32 |
2.5 |
16 |
24 |
– |
16 |
0.2 |
M33×2 |
39 |
41 |
39.9 |
2.5 |
18 |
26 |
23 |
20 |
0.2 |
M42×2 |
49 |
51 |
49.9 |
2.5 |
20 |
28 |
30 |
25 |
0.2 |
M48×2 |
55 |
56 |
55 |
2.5 |
22 |
30 |
36 |
32 |
0.2 |
M60×2 |
– |
71 |
69.9 |
2.5 |
25 |
34 |
– |
40 |
0.2 |
BSPP英制直管螺纹(55°牙型角,G螺纹或称为PF牙) Ø:接头内孔孔径
参照标准DIN-ISO228
G1 |
d3 |
d4+0.4 |
d5 |
a1最大 |
b1最小 |
t1最小 |
Ø(L) |
Ø(S) |
W |
G1/8″ |
14 |
15 |
14 |
1 |
8 |
13 |
4 |
– |
0.1 |
G1/4″ |
18 |
20 |
18.9 |
1.5 |
12 |
18.5 |
7 |
5 |
0.1 |
G3/8″ |
22 |
23 |
22 |
2 |
12 |
18.5 |
9 |
8 |
0.1 |
G1/2″ |
26 |
28 |
26.9 |
2.5 |
14 |
22 |
14 |
12 |
0.1 |
G3/4″ |
32 |
33 |
32 |
2.5 |
16 |
24 |
18 |
16 |
0.2 |
G1″ |
39 |
41 |
39.9 |
2.5 |
18 |
27 |
23 |
20 |
0.2 |
G11/4″ |
49 |
51 |
49.9 |
2.5 |
20 |
29 |
30 |
25 |
0.2 |
G11/2″ |
55 |
56 |
55 |
2.5 |
22 |
31 |
36 |
32 |
0.2 |
G2″ |
– |
71 |
69.9 |
2.5 |
25 |
34 |
– |
40 |
0.2 |
|
|
公制锥管螺纹
M2 |
b2最小 |
t3最小 |
M 8×1 K |
5.5 |
10 |
M10×1 K |
5.5 |
10 |
M12×1.5 K |
8.5 |
13.5 |
M14×1.5 K |
8.5 |
13.5 |
M16×1.5 K |
8.5 |
13.5 |
M18×1.5 K |
8.5 |
13.5 |
M20×1.5 K |
10.5 |
15.5 |
M22×1.5 K |
10.5 |
15.5 |
英制锥管螺纹(BSPT/PT)
(R螺纹)
R |
b2最小 |
t3最小 |
R1/8″K |
9.5 |
12.5 |
R1/4″K |
10.5 |
15.5 |
R3/8″K |
10.5 |
15.5 |
R1/2″K |
12.5 |
18.5 |
R3/4″K |
15.5 |
22.5 |
R1″K |
17.5 |
25.5 |
R11/4″K |
19.5 |
27.5 |
R11/2″K |
21.5 |
29.5 |
|