55度管螺纹标准尺寸对照表.docx
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55度管螺纹标准尺寸对照表.docx
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55度管螺纹标准尺寸对照表
55°圆锥管螺纹(BSPT)
螺纹代号
基本尺寸
英寸
大径
mm
d=D
螺距
mm
p
每英寸牙数
tpi
中径
mm
d2=D2
小径
外螺纹
d3
牙型高度
H1
圆弧尺寸
r
底孔尺寸
mm
R1/16
1/16"
7.723
0.907
28
7.142
6.561
0.581
0.125
6.4
R1/8
1/8"
9.728
0.907
28
9.147
8.566
0.581
0.125
8.4
R1/4
1/4"
13.157
1.337
19
12.301
11.445
0.856
0.184
11.2
R3/8
3/8"
16.662
1.337
19
15.806
14.950
0.856
0.184
14.75
R1/2
1/2"
20.955
1.814
14
19.793
18.631
1.162
0.249
18.25
R3/4
3/4"
26.441
1.814
14
25.279
24.117
1.162
0.249
23.75
R1
1"
33.249
2.309
11
31.77
30.291
1.479
0.317
30
R11/4
11/4"
41.910
2.309
11
40.431
38.952
1.479
0.317
38.5
R11/2
11/2"
47.803
2.309
11
46.324
44.845
1.479
0.317
44.5
R2
2"
59.614
2.309
11
58.135
56.656
1.479
0.317
56
R21/2
21/2"
75.184
2.309
11
73.705
72.226
1.479
0.317
71
R3
3"
87.884
2.309
11
86.405
84.926
1.479
0.317
85.5
R4
4"
113.030
2.309
11
111.551
110.072
1.479
0.317
110.5
R5
5"
138.430
2.309
11
136.951
135.472
1.479
0.317
136
R6
6"
163.830
2.309
11
162.351
160.872
1.479
0.317
161.5
55°圆柱管螺纹的型式和尺寸
BritishPipeThread(惠氏管螺纹)--圆柱(BSPP/BSPF)
螺纹代号
基本尺寸
大径
mm
d=D
螺距
mm
p
每英寸牙数
tpi
中径
mm
d2=D2
小径
外螺纹
d3
牙型高度
H1
底孔尺寸
mm
G1/8
1/8"
9.728
0.907
28
9.147
8.566
0.581
8.7
G1/4
1/4"
13.157
1.337
19
12.301
11.445
0.856
11.6
G3/8
3/8"
16.662
1.337
19
15.806
14.95
0.856
15
G1/2
1/2"
20.955
1.814
14
19.793
18.631
1.162
19
G5/8
5/8"
22.911
1.814
14
21.749
20.587
1.162
20.75
G3/4
3/4"
26.441
1.814
14
25.279
24.117
1.162
24.5
G7/8
7/8"
30.201
1.814
14
29.039
27.877
1.162
28
G1
1"
33.249
2.309
11
31.77
30.291
1.479
30.5
G11/8
11/8"
37.897
2.309
11
36.418
34.939
1.479
35
G11/4
11/4"
41.91
2.309
11
40.431
38.952
1.479
39.5
G13/8
13/8"
44.323
2.309
11
42.844
41.365
1.479
41.5
G11/2
11/2"
47.803
2.309
11
46.324
44.845
1.479
45
G13/4
13/4"
53.746
2.309
11
52.267
50.788
1.479
51
G2
2"
59.614
2.309
11
58.135
56.656
1.479
57
G21/4
21/4"
65.71
2.309
11
64.231
62.752
1.479
63
G21/2
21/2"
75.184
2.309
11
73.705
72.226
1.479
72.5
G23/4
23/4"
81.534
2.309
11
80.055
78.576
1.479
79
G3
3"
87.884
2.309
11
86.405
84.926
1.479
85.
G31/4
31/4"
93.98
2.309
11
92.501
91.022
1.479
91
G31/2
31/2"
100.33
2.309
11
98.351
97.372
1.479
97.75
G33/4
33/4"
106.68
2.309
11
105.201
103.722
1.479
104
G4
4"
113.03
2.309
11
111.55
110.072
1.479
110.5
G41/2
41/2"
125.73
2.309
11
124.251
122.772
1.479
123
G5
5"
138.43
2.309
11
136.951
135.472
1.479
136
G51/2
51/2"
151.13
2.309
11
149.651
148.172
1.479
148.5
G6
6"
163.83
2.309
11
162.351
160.872
1.479
161.5
55度圆锥管螺纹的实际加工尺寸
55°圆柱管螺纹的型式和尺寸
BritishPipeThread(惠氏管螺纹)--圆柱(BSPP/BSPF)
螺纹代号
基本尺寸
大径
mm
d=D
螺距
mm
p
每英寸牙数
tpi
中径
mm
d2=D2
小径
外螺纹
d3
牙型高度
H1
底孔尺寸
mm
G1/8
1/8"
9.728
0.907
28
9.147
8.566
0.581
8.7
G1/4
1/4"
13.157
1.337
19
12.301
11.445
0.856
11.6
G3/8
3/8"
16.662
1.337
19
15.806
14.95
0.856
15
G1/2
1/2"
20.955
1.814
14
19.793
18.631
1.162
19
G5/8
5/8"
22.911
1.814
14
21.749
20.587
1.162
20.75
G3/4
3/4"
26.441
1.814
14
25.279
24.117
1.162
24.5
G7/8
7/8"
30.201
1.814
14
29.039
27.877
1.162
28
G1
1"
33.249
2.309
11
31.77
30.291
1.479
30.5
G11/8
11/8"
37.897
2.309
11
36.418
34.939
1.479
35
G11/4
11/4"
41.91
2.309
11
40.431
38.952
1.479
39.5
G13/8
13/8"
44.323
2.309
11
42.844
41.365
1.479
41.5
G11/2
11/2"
47.803
2.309
11
46.324
44.845
1.479
45
G13/4
13/4"
53.746
2.309
11
52.267
50.788
1.479
51
G2
2"
59.614
2.309
11
58.135
56.656
1.479
57
G21/4
21/4"
65.71
2.309
11
64.231
62.752
1.479
63
G21/2
21/2"
75.184
2.309
11
73.705
72.226
1.479
72.5
G23/4
23/4"
81.534
2.309
11
80.055
78.576
1.479
79
G3
3"
87.884
2.309
11
86.405
84.926
1.479
85.
G31/4
31/4"
93.98
2.309
11
92.501
91.022
1.479
91
G31/2
31/2"
100.33
2.309
11
98.351
97.372
1.479
97.75
G33/4
33/4"
106.68
2.309
11
105.201
103.722
1.479
104
G4
4"
113.03
2.309
11
111.55
110.072
1.479
110.5
G41/2
41/2"
125.73
2.309
11
124.251
122.772
1.479
123
G5
5"
138.43
2.309
11
136.951
135.472
1.479
136
G51/2
51/2"
151.13
2.309
11
149.651
148.172
1.479
148.5
G6
6"
163.83
2.309
11
162.351
160.872
1.479
161.5
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- 55 螺纹 标准 尺寸 对照