Tiêu chuẩn ren BSP (British Standard Pipe)
Ren BSP được chia làm 2 loại như sau:
+ Ren thẳng BSPP (British Standard Pipe Parallel thread), đỉnh ren và chân ren đi song song với nhau
Bảng kích thước chi tiết
|
Major Dia |
|
External Thread |
Internal Thread |
|
Size |
Size |
pitch |
Major Dia D |
Pitch Dia D2 |
Minor Dia |
Minor Dia d |
Pitch Dia d2 |
Major Dia d3 |
Tap Drill |
Thread
Designation |
mm |
mm |
Max |
Min |
Max |
Min |
Max |
Min |
Max |
Min |
Max |
Min |
mm |
1/16 |
7.723 |
0.907 |
7.723 |
7.509 |
7.142 |
7.035 |
6.561 |
6.561 |
6.834 |
7.142 |
7.249 |
7.723 |
6.8 |
1/16 |
7.723 |
0.907 |
7.723 |
7.509 |
7.142 |
6.928 |
6.561 |
|
|
|
|
|
|
1/8 |
9.728 |
0.907 |
9.728 |
9.514 |
9.147 |
9.040 |
8.566 |
8.566 |
8.848 |
9.147 |
9.254 |
9.728 |
8.8 |
1/8 |
9.728 |
0.907 |
9.728 |
9.514 |
9.147 |
8.933 |
8.566 |
|
|
|
|
|
|
1/4 |
13.157 |
1.337 |
13.157 |
12.907 |
12.301 |
12.176 |
11.445 |
11.445 |
11.89 |
12.301 |
12.426 |
13.157 |
11.8 |
1/4 |
13.157 |
1.337 |
13.157 |
12.907 |
12.301 |
12.051 |
11.445 |
|
|
|
|
|
|
3/8 |
16.662 |
1.337 |
16.662 |
16.412 |
15.806 |
15.681 |
14.950 |
14.95 |
15.395 |
15.806 |
15.931 |
16.662 |
15.25 |
3/8 |
16.662 |
1.337 |
16.662 |
16.412 |
15.806 |
15.556 |
14.950 |
|
|
|
|
|
|
1/2 |
20.955 |
1.814 |
20.955 |
20.671 |
19.793 |
19.651 |
18.631 |
18.631 |
19.172 |
19.793 |
19.935 |
20.955 |
19 |
1/2 |
20.955 |
1.814 |
20.955 |
20.671 |
19.793 |
19.509 |
18.631 |
|
|
|
|
|
|
5/8 |
22.911 |
1.814 |
22.911 |
22.627 |
21.749 |
21.607 |
20.587 |
20.587 |
21.128 |
21.749 |
21.891 |
22.911 |
21 |
5/8 |
22.911 |
1.814 |
22.911 |
22.627 |
21.749 |
21.465 |
20.587 |
|
|
|
|
|
|
3/4 |
26.441 |
1.814 |
26.441 |
26.157 |
25.279 |
25.137 |
24.117 |
24.117 |
24.658 |
25.279 |
25.421 |
26.441 |
24.5 |
3/4 |
26.441 |
1.814 |
26.441 |
26.157 |
25.279 |
24.995 |
24.117 |
|
|
|
|
|
|
7/8 |
30.201 |
1.814 |
30.201 |
29.917 |
29.039 |
28.897 |
27.877 |
27.877 |
28.418 |
29.039 |
29.181 |
30.201 |
28.25 |
7/8 |
30.201 |
1.814 |
30.201 |
29.917 |
29.039 |
28.755 |
27.877 |
|
|
|
|
|
|
1 |
33.249 |
2.309 |
33.249 |
32.889 |
31.770 |
31.590 |
30.291 |
30.291 |
30.931 |
31.77 |
31.95 |
33.249 |
30.75 |
1 |
33.249 |
2.309 |
33.249 |
32.889 |
31.770 |
31.410 |
30.291 |
|
|
|
|
|
|
1 1/8 |
37.897 |
2.309 |
37.897 |
37.537 |
36.418 |
36.238 |
34.939 |
34.939 |
35.579 |
36.418 |
36.598 |
37.897 |
35.5 |
1 1/8 |
37.897 |
2.309 |
37.897 |
37.537 |
36.418 |
36.058 |
34.939 |
|
|
|
|
|
|
1 1/4 |
41.910 |
2.309 |
41.910 |
41.550 |
40.431 |
40.251 |
38.952 |
38.952 |
39.592 |
40.431 |
40.611 |
41.910 |
39.5 |
1 1/4 |
41.910 |
2.309 |
41.910 |
41.550 |
40.431 |
40.071 |
38.952 |
|
|
|
|
|
|
1 1/2 |
47.803 |
2.309 |
47.803 |
47.443 |
46.324 |
46.144 |
44.845 |
44.845 |
45.485 |
46.324 |
46.504 |
47.803 |
45.25 |
1 1/2 |
47.803 |
2.309 |
47.803 |
47.443 |
46.324 |
45.964 |
44.845 |
|
|
|
|
|
|
1 3/4 |
53.746 |
2.309 |
53.746 |
53.386 |
52.267 |
52.087 |
50.788 |
50.788 |
51.428 |
52.267 |
52.447 |
53.746 |
51 |
1 3/4 |
53.746 |
2.309 |
53.746 |
53.386 |
52.267 |
51.907 |
50.788 |
|
|
|
|
|
|
2 |
59.614 |
2.309 |
59.614 |
59.254 |
58.135 |
57.955 |
56.656 |
56.656 |
57.296 |
58.135 |
58.315 |
59.614 |
57 |
2 |
59.614 |
2.309 |
59.614 |
59.254 |
58.135 |
57.775 |
56.656 |
|
|
|
|
|
|
2 1/4 |
65.710 |
2.309 |
65.710 |
65.276 |
64.231 |
64.014 |
62.752 |
62.752 |
63.392 |
64.231 |
64.448 |
65.710 |
63.3 |
2 1/4 |
65.710 |
2.309 |
65.710 |
65.276 |
64.231 |
63.797 |
62.752 |
|
|
|
|
|
|
2 1/2 |
75.184 |
2.309 |
75.184 |
74.750 |
73.705 |
73.488 |
72.226 |
72.226 |
72.866 |
73.705 |
73.922 |
75.184 |
72.8 |
2 1/2 |
75.184 |
2.309 |
75.184 |
74.750 |
73.705 |
73.271 |
72.226 |
|
|
|
|
|
|
2 3/4 |
81.534 |
2.309 |
81.534 |
81.100 |
80.055 |
79.838 |
78.576 |
78.576 |
79.216 |
80.055 |
80.272 |
81.534 |
79.1 |
2 3/4 |
81.534 |
2.309 |
81.534 |
81.100 |
80.055 |
79.621 |
78.576 |
|
|
|
|
|
|
3 |
87.884 |
2.309 |
87.884 |
87.450 |
86.405 |
86.188 |
84.926 |
84.926 |
85.566 |
86.405 |
86.622 |
87.884 |
85.5 |
3 |
87.884 |
2.309 |
87.884 |
87.450 |
86.405 |
85.971 |
84.926 |
|
|
|
|
|
|
3 1/2 |
100.330 |
2.309 |
100.330 |
99.896 |
98.851 |
98.634 |
97.372 |
97.372 |
98.012 |
98.851 |
99.068 |
100.330 |
97.75 |
3 1/2 |
100.330 |
2.309 |
100.330 |
99.896 |
98.851 |
98.417 |
97.372 |
|
|
|
|
|
|
4 |
113.030 |
2.309 |
113.030 |
112.596 |
111.551 |
111.334 |
110.072 |
110.072 |
110.712 |
111.551 |
111.768 |
113.030 |
110.5 |
4 |
113.030 |
2.309 |
113.030 |
112.596 |
111.551 |
111.117 |
110.072 |
|
|
|
|
|
|
4 1/2 |
125.730 |
2.309 |
125.730 |
125.296 |
124.251 |
124.034 |
122.772 |
122.772 |
123.412 |
124.251 |
124.468 |
125.730 |
123 |
4 1/2 |
125.730 |
2.309 |
125.730 |
125.296 |
124.251 |
123.817 |
122.772 |
|
|
|
|
|
|
5 |
138.430 |
2.309 |
138.430 |
137.996 |
136.951 |
136.734 |
135.472 |
135.472 |
136.112 |
136.951 |
137.168 |
138.430 |
136 |
5 |
138.430 |
2.309 |
138.430 |
137.996 |
136.951 |
136.517 |
135.472 |
|
|
|
|
|
|
5 1/2 |
151.130 |
2.309 |
151.130 |
150.696 |
149.651 |
149.434 |
148.172 |
148.172 |
148.812 |
149.651 |
149.868 |
151.130 |
148.5 |
5 1/2 |
151.130 |
2.309 |
151.130 |
150.696 |
149.651 |
149.217 |
148.172 |
|
|
|
|
|
|
6 |
163.830 |
2.309 |
163.830 |
163.396 |
162.351 |
162.134 |
160.872 |
160.872 |
161.512 |
162.351 |
162.568 |
163.830 |
161.5 |
6 |
163.830 |
2.309 |
163.830 |
163.396 |
162.351 |
161.917 |
160.872 |
|
|
|
|
|
|
+ Ren thẳng BSPT (British Standard Pipe Taper thread), đỉnh ren và chân ren tăng hoặc giảm kích thước
Bảng kích thước chi tiết
Thread |
Nominal |
Thread |
Major |
Pitch |
Threads |
Pitch |
Minor |
Thread |
Rounding |
Effective |
Tap |
Designation |
Size |
Form |
Diameter |
mm |
per |
Diameter |
Diameter |
Height |
r |
Thread |
Drill |
|
|
Type |
mm |
p |
inch |
mm |
Male Thd. |
H1 |
|
Length mm |
Diameter |
BSPT |
BSPT |
|
d=D |
|
tpi |
d2=D2 |
d3=D3 |
|
|
External |
mm |
R 1/16 |
1/16" |
BSPT |
7.723 |
0.907 |
28 |
7.142 |
6.561 |
0.581 |
0.125 |
2.5 |
6.4 |
R 1/8 |
1/8" |
BSPT |
9.728 |
0.907 |
28 |
9.147 |
8.566 |
0.581 |
0.125 |
2.5 |
8.4 |
R 1/4 |
1/4" |
BSPT |
13.157 |
1.337 |
19 |
12.301 |
11.445 |
0.856 |
0.184 |
3.7 |
11.2 |
R 3/8 |
3/8" |
BSPT |
16.662 |
1.337 |
19 |
15.806 |
14.95 |
0.856 |
0.184 |
3.7 |
14.75 |
R 1/2 |
1/2" |
BSPT |
20.955 |
1.814 |
14 |
19.793 |
18.631 |
1.162 |
0.249 |
5 |
18.25 |
R 3/4 |
3/4" |
BSPT |
26.441 |
1.814 |
14 |
25.279 |
24.117 |
1.162 |
0.249 |
5 |
23.75 |
R 1 |
1" |
BSPT |
33.249 |
2.309 |
11 |
31.77 |
30.291 |
1.479 |
0.317 |
6.4 |
30 |
R 1 1/4 |
1 1/4" |
BSPT |
41.91 |
2.309 |
11 |
40.431 |
38.952 |
1.479 |
0.317 |
6.4 |
38.5 |
R 1 1/2 |
1 1/2" |
BSPT |
47.803 |
2.309 |
11 |
46.324 |
44.845 |
1.479 |
0.317 |
6.4 |
44.5 |
R 2 |
2" |
BSPT |
59.614 |
2.309 |
11 |
58.135 |
56.656 |
1.479 |
0.317 |
7.5 |
56 |
R 2 1/2 |
2 1/2" |
BSPT |
75.184 |
2.309 |
11 |
73.705 |
72.226 |
1.479 |
0.317 |
9.2 |
71 |
R 3 |
3" |
BSPT |
87.884 |
2.309 |
11 |
86.405 |
84.926 |
1.479 |
0.317 |
9.2 |
85.5 |
R 4 |
4" |
BSPT |
113.03 |
2.309 |
11 |
111.551 |
110.072 |
1.479 |
0.317 |
10.4 |
110.5 |
R 5 |
5" |
BSPT |
138.43 |
2.309 |
11 |
136.951 |
135.472 |
1.479 |
0.317 |
11.5 |
136 |
R 6 |
6" |
BSPT |
163.83 |
2.309 |
11 |
162.351 |
160.872 |
1.479 |
0.317 |
11.5 |
161. |