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British Pipe Thread (惠氏管螺纹) -- 圆柱 (BSPP/BSPF) 螺纹代号9 d w! Q# @1 ]; [3 }9 u 基本尺寸( @ O+ u s' s4 f |, c 大径 ) E, O( R( P8 Ymm 5 S& k6 o8 V0 i; qd=D 螺距" Z6 e% f+ [7 ^: l( [ mm . S& i, a3 ?! K" i+ vp 每英寸牙数 ) B. N& m' C5 atpi 中径 8 M' F' @* m* g9 Y/ l7 I0 O/ g/ P0 qmm?% Z: @8 ?) s; n- O' [ d2=D2 小径1 O# K( I9 X' i0 X: [* t 外螺纹 8 K+ c1 s4 e N4 k/ A9 k0 g y1 o( ~d3 牙型高度9 Z! j( e1 D8 C5 F H1 底孔尺寸- T. W/ h* w9 Y0 u8 s0 y$ s& G& R mm , C+ j( U L7 [, n7 ?9 CG 1/8 1/8" 9.728 0.907 28 9.147 8.566 0.581 8.7 * t- M, B0 L3 ?2 KG 1/4 1/4" 13.157 1.337 19 12.301 11.445 0.856 11.6 9 W% J, u6 E( |* P yG 3/8 3/8" 16.662 1.337 19 15.806 14.95 0.856 15 4 Y$ d0 T r' k9 J& dG 1/2 1/2" 20.955 1.814 14 19.793 18.631 1.162 19 - U7 m. ^ r- |0 GG 5/8 5/8" 22.911 1.814 14 21.749 20.587 1.162 20.75 : l8 [2 ], ]! S$ FG 3/4 3/4" 26.441 1.814 14 25.279 24.117 1.162 24.5" u. D6 X" c; ^0 R( t3 P" I* B5 L4 Y G 7/8 7/8" 30.201 1.814 14 29.039 27.877 1.162 28 0 r0 e; R' s3 s4 t) i: U7 Q D8 xG 1 1" 33.249 2.309 11 31.77 30.291 1.479 30.5 + U3 s! g% w9 w* _G 1 1/8 1 1/8" 37.897 2.309 11 36.418 34.939 1.479 35 * e2 y) i3 I; s: h- `$ VG 1 1/4 1 1/4" 41.91 2.309 11 40.431 38.952 1.479 39.5& o2 i2 _' y. z G 1 3/8 1 3/8" 44.323 2.309 11 42.844 41.365 1.479 41.5/ Y. N# w, i7 j6 ^# ~ G 1 1/2 1 1/2" 47.803 2.309 11 46.324 44.845 1.479 45 5 ?8 c$ f* F$ v" Y. ?# wG 1 3/4 1 3/4" 53.746 2.309 11 52.267 50.788 1.479 51 , i5 \* O6 e8 d$ A! M$ ZG 2 2" 59.614 2.309 11 58.135 56.656 1.479 57, ?5 @' l9 p3 l9 T$ t$ { G 2 1/4 2 1/4" 65.71 2.309 11 64.231 62.752 1.479 63 1 { I- H6 M5 ~G 2 1/2 2 1/2" 75.184 2.309 11 73.705 72.226 1.479 72.59 m0 I3 O8 h; y4 Z! h7 ~( ~ G 2 3/4 2 3/4" 81.534 2.309 11 80.055 78.576 1.479 799 ]- W( `5 D: {" z2 t( j5 k4 D G 3 3" 87.884 2.309 11 86.405 84.926 1.479 85.5& Q% j& v5 V% K/ ~ G 3 1/4 3 1/4" 93.98 2.309 11 92.501 91.022 1.479 917 w* ?) L$ Z# R9 _7 g, M G 3 1/2 3 1/2" 100.33 2.309 11 98.351 97.372 1.479 97.753 Q( S ^' R& P% F G 3 3/4 3 3/4" 106.68 2.309 11 105.201 103.722 1.479 104 3 E$ E9 X! b7 n- e) J& ?% XG 4 4" 113.03 2.309 11 111.55 110.072 1.479 110.56 v+ B m6 x0 {& h% Y+ F3 B* q' z G 4 1/2 4 1/2" 125.73 2.309 11 124.251 122.772 1.479 1237 C" a1 g4 E% g! ^ Q G 5 5" 138.43 2.309 11 136.951 135.472 1.479 136 , S+ G) z4 T. PG 5 1/2 5 1/2" 151.13 2.309 11 149.651 148.172 1.479 148.5 . i1 G1 o j3 O1 r( wG 6 6" 163.83 2.309 11 162.351 160.872 1.479 161.5: E/ q0 ?, q6 _$ ` 资料来源:中国机械cad必威APP精装版下载 |
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