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发表于 2008-3-17 20:57:32
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British Pipe Thread (惠氏管螺纹) -- 圆柱 (BSPP/BSPF) 螺纹代号
" P4 e/ @/ |6 d* N2 c& F基本尺寸
, d1 I2 B1 {- T- Y4 z大径
" v, K+ B7 c. o2 t: wmm
6 T0 @( h+ A: m* G l$ u ?, n# p9 ?d=D 螺距
0 h3 {0 n% A, _" U6 v. ]- o/ rmm1 `/ E# F7 E) d' [7 n
p 每英寸牙数8 J. H' |- d0 Z ^& n6 n
tpi 中径
8 b: e; I7 [; B. _- Jmm$ A' Z9 f( k% q9 S* L
d2=D2 小径/ M ?" O2 n: f7 s( C5 `& ^" i6 R
外螺纹
E% C; U0 g& `/ H, V# `. Md3 牙型高度$ i8 J. r B0 j0 b# L# a. _; W
H1 底孔尺寸- d- C' z& o, q2 y N$ W
mm 4 {( P9 e5 z+ K+ j# q1 u
G 1/8 1/8" 9.728 0.907 28 9.147 8.566 0.581 8.7
0 s' E, _5 _: j" D" H# ?G 1/4 1/4" 13.157 1.337 19 12.301 11.445 0.856 11.6
. m4 X- l# p9 C, {1 ?0 ZG 3/8 3/8" 16.662 1.337 19 15.806 14.95 0.856 15 0 B- I; P. \) w3 v3 w: [
G 1/2 1/2" 20.955 1.814 14 19.793 18.631 1.162 19
8 z( N6 r7 w- x9 \ ]8 |- ?G 5/8 5/8" 22.911 1.814 14 21.749 20.587 1.162 20.75 # f+ x6 T+ l( J, e
G 3/4 3/4" 26.441 1.814 14 25.279 24.117 1.162 24.5 0 U+ L+ k+ w0 {
G 7/8 7/8" 30.201 1.814 14 29.039 27.877 1.162 28
5 j7 s! K; n2 I# ?' FG 1 1" 33.249 2.309 11 31.77 30.291 1.479 30.5
( O& n2 F: b% P" x3 S NG 1 1/8 1 1/8" 37.897 2.309 11 36.418 34.939 1.479 35
9 R( Y* U% B* {; U% }9 HG 1 1/4 1 1/4" 41.91 2.309 11 40.431 38.952 1.479 39.5
* g1 }+ D, q5 t: V5 {0 ?* r4 lG 1 3/8 1 3/8" 44.323 2.309 11 42.844 41.365 1.479 41.5 " Z8 U; v- H) r: W J9 p
G 1 1/2 1 1/2" 47.803 2.309 11 46.324 44.845 1.479 45
9 M8 F# `' t) B% c. l( c% SG 1 3/4 1 3/4" 53.746 2.309 11 52.267 50.788 1.479 51 0 o! \, ]3 H0 T. N9 k7 g
G 2 2" 59.614 2.309 11 58.135 56.656 1.479 57
0 t# ?+ S3 g( n8 c' J& o7 KG 2 1/4 2 1/4" 65.71 2.309 11 64.231 62.752 1.479 63
$ h2 U* }2 }6 O4 x) \0 [2 MG 2 1/2 2 1/2" 75.184 2.309 11 73.705 72.226 1.479 72.5 " Z3 `4 d5 Z1 S5 N' s
G 2 3/4 2 3/4" 81.534 2.309 11 80.055 78.576 1.479 79 ' Q; t7 f& y# Q" Z8 L
G 3 3" 87.884 2.309 11 86.405 84.926 1.479 85.5
$ {6 G( I3 t/ q9 a' oG 3 1/4 3 1/4" 93.98 2.309 11 92.501 91.022 1.479 91
" p, `, H) l L* ~G 3 1/2 3 1/2" 100.33 2.309 11 98.351 97.372 1.479 97.75 / Q _# x. L% z0 p6 @* W( V8 f! _
G 3 3/4 3 3/4" 106.68 2.309 11 105.201 103.722 1.479 104 6 n S* e9 W- F; }. `& x% L
G 4 4" 113.03 2.309 11 111.55 110.072 1.479 110.5
+ {) t+ O) M/ n5 X* KG 4 1/2 4 1/2" 125.73 2.309 11 124.251 122.772 1.479 123
7 o# a3 }; ]; W& t2 z% TG 5 5" 138.43 2.309 11 136.951 135.472 1.479 136 8 ]' x' p$ z! |! r
G 5 1/2 5 1/2" 151.13 2.309 11 149.651 148.172 1.479 148.5
& }/ ^1 Q2 q2 u" Z. m, n* T6 kG 6 6" 163.83 2.309 11 162.351 160.872 1.479 161.5 $ v* s0 r4 I! p% u
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