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British Pipe Thread (惠氏管螺纹) -- 圆柱 (BSPP/BSPF) 螺纹代号7 m3 ^& t1 n+ d' p9 T' r+ g0 }
基本尺寸6 [' \/ N5 h$ n% ? {) k, a% V* J6 N
大径
; i, z! l* f9 vmm
6 B4 `, t: e8 h- \. h) pd=D 螺距. O* \9 `) { W, A
mm
( l! p ^3 E+ s9 ]. x, d7 b& X& mp 每英寸牙数1 m/ N# F5 W1 {" p; T" Q8 \0 ?
tpi 中径( G* O L: M: d9 i+ f
mm
* k$ }0 t+ h$ e; x* id2=D2 小径
0 V4 w# F' ~% s3 W' s3 g外螺纹
8 J( E3 d& k5 `+ wd3 牙型高度
7 T. I$ z+ O. NH1 底孔尺寸" }% I* x' v4 [6 J8 e
mm . E3 |1 Q) w; H/ _! p; K; Y/ S" i
G 1/8 1/8" 9.728 0.907 28 9.147 8.566 0.581 8.7
9 L2 G* t$ s( Y2 rG 1/4 1/4" 13.157 1.337 19 12.301 11.445 0.856 11.6 % {/ B, |2 {& p6 M' |( o
G 3/8 3/8" 16.662 1.337 19 15.806 14.95 0.856 15
3 n, \: b. O4 Z+ }6 d) G) d! l! hG 1/2 1/2" 20.955 1.814 14 19.793 18.631 1.162 19
/ j; s8 _! p/ ]G 5/8 5/8" 22.911 1.814 14 21.749 20.587 1.162 20.75 ! N" X1 G& _5 G& i
G 3/4 3/4" 26.441 1.814 14 25.279 24.117 1.162 24.5
9 g4 P0 c8 O% T# i1 iG 7/8 7/8" 30.201 1.814 14 29.039 27.877 1.162 28
, O+ w$ Z: B. T: b# V: g$ IG 1 1" 33.249 2.309 11 31.77 30.291 1.479 30.5 0 e* X: i* Z% _! ~9 L" }* n$ [- a
G 1 1/8 1 1/8" 37.897 2.309 11 36.418 34.939 1.479 35
% m- y9 c X* }4 u. e- L( OG 1 1/4 1 1/4" 41.91 2.309 11 40.431 38.952 1.479 39.5 ' ?' {/ E& I' d
G 1 3/8 1 3/8" 44.323 2.309 11 42.844 41.365 1.479 41.5 9 N I, A$ V4 h/ R9 t6 R
G 1 1/2 1 1/2" 47.803 2.309 11 46.324 44.845 1.479 45 1 _3 _' K& L2 O+ V! k* }* m9 b" ?
G 1 3/4 1 3/4" 53.746 2.309 11 52.267 50.788 1.479 51 ' g, y7 Q) @; T t9 U$ x& \8 s
G 2 2" 59.614 2.309 11 58.135 56.656 1.479 57
" p# H8 |- @# ?) t1 UG 2 1/4 2 1/4" 65.71 2.309 11 64.231 62.752 1.479 63
+ J' V* e# @$ j/ S7 X4 F& dG 2 1/2 2 1/2" 75.184 2.309 11 73.705 72.226 1.479 72.5
3 q3 l9 O4 `8 ZG 2 3/4 2 3/4" 81.534 2.309 11 80.055 78.576 1.479 79 - }; N- q/ c4 d. G# }
G 3 3" 87.884 2.309 11 86.405 84.926 1.479 85.5 % m7 U7 E) X9 ?! G# E' D9 y, k" ]
G 3 1/4 3 1/4" 93.98 2.309 11 92.501 91.022 1.479 91 1 ]; S. K, W. ]3 ?; p0 ]) B; L- ?
G 3 1/2 3 1/2" 100.33 2.309 11 98.351 97.372 1.479 97.75
" _% B: q. F' i# iG 3 3/4 3 3/4" 106.68 2.309 11 105.201 103.722 1.479 104 " H$ k" S; o- X8 i6 }( I/ v
G 4 4" 113.03 2.309 11 111.55 110.072 1.479 110.5 0 l; ]: f6 a% v6 k6 y# Y
G 4 1/2 4 1/2" 125.73 2.309 11 124.251 122.772 1.479 123 - V% S( Q0 V5 ]5 Y
G 5 5" 138.43 2.309 11 136.951 135.472 1.479 136 - S( ~* g$ K3 Y9 u
G 5 1/2 5 1/2" 151.13 2.309 11 149.651 148.172 1.479 148.5
! T2 w+ I9 ~* ?, Q6 { b1 tG 6 6" 163.83 2.309 11 162.351 160.872 1.479 161.5 / ?" K. k {& @ R3 [
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