BSP, BSPP, BST ROSCA INGLESA PARA TUBOS
BRITISH PIPE THREAD, BSP, BSPP and BST
BS EN ISO 228-1: 2003 DIMENSES DA ROSCA BSPP/ PARALELA
THREAD DIMENSIONS BRITISH PIPE THREAD ( WHITWORTH FORM) --
PARALLEL (BSPP/BSPF) -- (G)
Designao da rosca
fpp Passo Altura da rosca
H Dimetro
maior Diametro pitch
Dp=D2=d2 Dimetro menor
D1=d1
Designation
of thread
Number of threads
in 25.4 mm
Pitch
P
Height of
thread h
Dmajor
d = D Dpitch d2 = D2 Dminor d1 = D1
in In In In in
1/16 28 0.907 0.581 7.723 7.142 6.561
1/8 28 0.907 0.581 9.728 9.147 8.566
1/4 19 1.337 0.856 13.157 12.301 11.445
3/8 19 1.337 0.856 16.662 15.806 14.95
1/2 14 1.814 1.162 20.955 19.793 18.631
5/8 14 1.814 1.162 22.911 21.749 20.587
3/4 14 1.814 1.162 26.441 25.279 24.117
7/8 14 1.814 1.162 30.201 29.039 27.877
1 11 2.309 1.479 33.249 31.77 30.291
1 1/8 11 2.309 1.479 37.897 36.418 34.939
1 1/4 11 2.309 1.479 41.91 40.431 38.952
1 1/2 11 2.309 1.479 47.803 46.324 44.845
1 3/4 11 2.309 1.479 53.746 52.267 50.788
2 11 2.309 1.479 59.614 58.135 56.656
2 1/4 11 2.309 1.479 65.71 64.231 62.752
2 1/2 11 2.309 1.479 75.184 73.705 72.226
2 3/4 11 2.309 1.479 81.534 80.055 78.576
3 11 2.309 1.479 87.884 86.405 84.926
3 1/2 11 2.309 1.479 100.33 98.851 97.372
4 11 2.309 1.479 113.03 111.551 110.072
4 1/2 11 2.309 1.479 125.73 124.251 122.772
5 11 2.309 1.479 138.43 139.951 135.472
5 1/2 11 2.309 1.479 151.13 149.651 148.172
6 11 2.309 1.479 163.83 162.351 160.872
MU 09 fl 1/2
ROSCA PARA TUBOS PADRO INGLES BSPT (ROSCA JAPONESA PARA TUBOS
JPT
PIPE THREAD -- BRITISH STANDARD PIPE TAPER BSPT / PIPE THREAD --
JAPANESE PIPE TAPER -- PT
Designao
da rosca
Tamanho
Nominal
Dimetro
Maior D=d
Passo p
Fpp
Diametro
Pitch D2=d2
Dimetro
Menor rosca Macho D3
Altura
Da rosca H1
Raio r
Compr. Efetivo
De rosca mm
Diam.
Broca mm
Thread Nominal Major Pitch Threads Pitch Minor Thread Rounding
Effective Tap
Designation Size Diameter mm per Diameter Diameter Height r
Thread Drill
R 1/16 1/16" 7.723 0.907 28 7.142 6.561 0.581 0.125 2.5 6.4
R 1/8 1/8" 9.728 0.907 28 9.147 8.566 0.581 0.125 2.5 8.4
R 1/4 1/4" 13.157 1.337 19 12.301 11.445 0.856 0.184 3.7
11.2
R 3/8 3/8" 16.662 1.337 19 15.806 14.95 0.856 0.184 3.7
14.75
R 1/2 1/2" 20.955 1.814 14 19.793 18.631 1.162 0.249 5 18.25
R 3/4 3/4" 26.441 1.814 14 25.279 24.117 1.162 0.249 5 23.75
R 1 1" 33.249 2.309 11 31.77 30.291 1.479 0.317 6.4 30
R 1 1/4 1 1/4" 41.91 2.309 11 40.431 38.952 1.479 0.317 6.4
38.5
R 1 1/2 1 1/2" 47.803 2.309 11 46.324 44.845 1.479 0.317 6.4
44.5
R 2 2" 59.614 2.309 11 58.135 56.656 1.479 0.317 7.5 56
R 2 1/2 2 1/2" 75.184 2.309 11 73.705 72.226 1.479 0.317 9.2
71
R 3 3" 87.884 2.309 11 86.405 84.926 1.479 0.317 9.2 85.5
R 4 4" 113.03 2.309 11 111.551 110.072 1.479 0.317 10.4
110.5
R 5 5" 138.43 2.309 11 136.951 135.472 1.479 0.317 11.5 136
R 6 6" 163.83 2.309 11 162.351 160.872 1.479 0.317 11.5
161.5
MU 09 fl 2/2
