REFERÊNCIA
ANSI B18.21.1 - 1965 (R1975)
|
Diâmetro
Nominal |
Tipo
"A" - Leve
|
Tipo
"B" - Regular
|
|||||||||||
|
A
|
máx.
min. |
B
|
máx.
min. |
C
|
máx.
min. |
A
|
máx.
min. |
B
|
máx.
min. |
C
|
máx.
min. |
||
|
3/16"
|
6,731
|
14,655
|
1,651
|
5,359
|
14,478
|
1,143
|
|||||||
|
6,223
|
14,147
|
0,914
|
5,029
|
14,147
|
0,914
|
||||||||
|
1/4"
|
7,518
|
16,256
|
2,032
|
7,518
|
19,024
|
1,803
|
|||||||
|
7,010
|
15,748
|
1,295
|
7,010
|
18,465
|
1,422
|
||||||||
|
5/16"
|
9,118
|
17,856
|
2,032
|
9,118
|
22,606
|
1,803
|
|||||||
|
8,610
|
17,297
|
1,295
|
8,610
|
22,047
|
1,422
|
||||||||
|
3/8"
|
10,693
|
21,005
|
2,032
|
10,693
|
25,781
|
1,803
|
|||||||
|
10,185
|
20,447
|
1,295
|
10,185
|
25,222
|
1,422
|
||||||||
|
7/16"
|
12,293
|
23,799
|
2,032
|
12,293
|
28,956
|
1,803
|
|||||||
|
11,785
|
23,241
|
1,295
|
11,785
|
28,397
|
1,422
|
||||||||
|
1/2"
|
13,868
|
27,736
|
3,073
|
13,868
|
32,512
|
2,844
|
|||||||
|
13,360
|
26,797
|
1,879
|
13,360
|
31,572
|
2,286
|
||||||||
|
9/16"
|
15,468
|
30,124
|
3,073
|
15,468
|
38,074
|
2,844
|
|||||||
|
14,960
|
29,186
|
1,879
|
14,960
|
37,134
|
2,286
|
||||||||
|
5/8"
|
17,424
|
34,086
|
3,073
|
17,424
|
45,212
|
2,844
|
|||||||
|
16,484
|
33,147
|
1,879
|
16,484
|
44,272
|
2,286
|
||||||||
|
3/4"
|
21,386
|
38,074
|
4,064
|
21,386
|
51,562
|
2,844
|
|||||||
|
20,447
|
37,134
|
2,743
|
20,447
|
50,622
|
2,286
|
||||||||
|
7/8"
|
24,587
|
45,212
|
4,064
|
24,587
|
57,912
|
4,419
|
|||||||
|
23,647
|
44,272
|
2,743
|
23,647
|
56,972
|
3,708
|
||||||||
|
1"
|
27,736
|
51,562
|
4,064
|
27,736
|
64,262
|
4,419
|
|||||||
|
26,797
|
50,622
|
2,743
|
26,797
|
63,322
|
3,708
|
||||||||
|
1.1/8"
|
32,512
|
57,912
|
4,064
|
30,937
|
70,612
|
4,419
|
|||||||
|
31,572
|
56,972
|
2,743
|
29,997
|
69,672
|
3,708
|
||||||||
|
1.1/4"
|
35,687
|
64,262
|
4,876
|
34,086
|
76,962
|
4,419
|
|||||||
|
34,747
|
63,322
|
3,454
|
33,147
|
76,02
|
3,708
|
||||||||
|
1.3/8"
|
38,862
|
70,612
|
4,876
|
37,287
|
83,312
|
4,419
|
|||||||
|
37,922
|
69,672
|
3,454
|
36,347
|
82,372
|
3,708
|
||||||||
|
1.1/2"
|
42,037
|
76,962
|
4,876
|
40,187
|
90,043
|
6,756
|
|||||||
|
41,097
|
76,022
|
3,454
|
39,420
|
88,646
|
5,943
|
||||||||
|
1.5/8"
|
45,593
|
36,393
|
5,410
|
45,593
|
96,393
|
6,756
|
|||||||
|
44,196
|
94,996
|
3,886
|
44,196
|
94,996
|
5,943
|
||||||||
|
1.3/4"
|
48,768
|
102,743
|
5,410
|
48,768
|
102,743
|
6,756
|
|||||||
|
47,371
|
101,346
|
3,886
|
47,371
|
101,346
|
5,943
|
||||||||
|
1.7/8"
|
51,943
|
109,093
|
5,410
|
51,943
|
109,093
|
6,756
|
|||||||
|
50,546
|
107,696
|
3,886
|
50,546
|
107,696
|
5,943
|
||||||||
|
2"
|
55,118
|
115,443
|
5,410
|
55,118
|
115,443
|
6,756
|
|||||||
|
53,721
|
114,046
|
3,886
|
53,721
|
114,046
|
5,943
|
||||||||
