1、 KS B ISO 7 1KSKSKSKSSKSKSKS KSKSKS SKSKS KSKS SKS KS , KS B ISO 7 1 : 2007 2007 10 31 http:/www.kats.go.krKS B ISO 7 1： 2007 ： () ( ) () () () ( ) : (http:/www.standard.go.kr) ： ：2002 12 10 ：2007 10 31 2007-0902 ： ： ( 02-509-7274) (http:/www.kats.go.kr ). 7 5 , . KS B ISO 7 1 : 2007 , Pipe threads
2、where pressuretight joints are made on the threadsDimensions, tolerances and designation 1994 3 ISO 7 1, Pipe threads where pressure tight joints are made on the threads Part 1： Dimensions, tolerances and designation , . 1 1/16 6 , , . , , , , . . 1 . 2 KS B ISO 228 1 3 KS B ISO 7 2 . 2 . . ( ) . KS
3、 B ISO 7 2, 2： KS B ISO 228 1, , 3 . 3.1 (gauge diameter) KS B ISO 7 1： 2007 2 3.2 (major cone) 3.3 (gauge plane) . , . 3.4 (gauge length) 3.5 (reference plane) . , . 3.6 (complete thread) . 3.7 (incomplete thread) 3.8 (washout thread) . 3.9 (useful thread) 3.10 (fitting allowance) . (free run out)
4、(7.2.2 ). KS B ISO 7 1： 2007 3 3.11 (wrenching allowance) . 4 . Rp Rc R P H h 0.640 327 P： r D ( ： 3.1 ) D1D 1.280 654 P： D2D 0.640 327 P： d ( ： 3.1 ) d1 d 1.280 654 P： d2 d 0.640 327 P： T1 T2 5 1 . 1 ： mm 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 () () T1 /2 T2 /2 25.4 mm P h d d2 d1 b b b
5、 a1/16 1/8 1/4 28 28 19 0.907 0.907 1.337 0.581 0.581 0.856 7.723 9.728 13.1577.1429.14712.3016.5618.56611.4454 4 6 0.9 0.9 1.3 1 1 1 4.9 4.9 7.3 3.1 3.1 4.7 1.1 1.1 1.7 1 1/41 1/41 1/46.56.59.77.47.411 5.65.68.42.5 2.5 3.7 2 3/42 3/42 3/40.071 0.071 0.104 3/8 1/2 3/4 19 14 14 1.337 1.814 1.814 0.85
6、6 1.162 1.162 16.66220.95526.44115.80619.79325.27914.95018.63124.1176.4 8.2 9.5 1.3 1.8 1.8 1 1 1 7.7 10.011.35.1 6.4 7.7 1.7 2.3 2.3 1 1/41 1/41 1/410.113.214.511.415 16.38.811.412.73.7 5.0 5.0 2 3/42 3/42 3/40.104 0.142 0.142 1 1 1/4 1 1/2 11 11 11 2.309 2.309 2.309 1.479 1.479 1.479 33.24941.9104
7、7.80331.77040.43146.32430.29138.95244.84510.412.712.72.3 2.3 2.3 1 1 1 12.715.015.08.1 10.4 10.4 2.9 2.9 2.9 1 1/41 1/41 1/416.819.119.119.121.421.414.516.816.86.4 6.4 6.4 2 3/42 3/42 3/40.180 0.180 0.180 2 2 1/2 3 11 11 11 2.309 2.309 2.309 1.479 1.479 1.479 59.61475.18487.88458.13573.70586.40556.6
8、5672.22684.92615.917.520.62.3 3.5 3.5 1 1 1/21 1/218.221.024.113.6 14.0 17.1 2.9 3.5 3.5 1 1/41 1/21 1/223.426.729.825.730.233.321.123.226.37.5 9.2 9.2 3 1/44 4 0.180 0.216 0.216 4 5 6 11 11 11 2.309 2.309 2.309 1.479 1.479 1.479 113.030138.430163.830111.551136.951162.351110.072135.472160.87225.428.
9、628.63.5 3.5 3.5 1 1/21 1/21 1/228.932.132.121.9 25.1 25.1 3.5 3.5 3.5 1 1/21 1/21 1/235.840.140.139.343.643.632.336.636.610.411.511.54 1/25 5 0.216 0.216 0.216 1 inch 25.4 mm . , P, h( ) 0.640 327 P, . h 1 2 . , , . 1 . . a 3 1/16 14 . b , 3 0.1 mm . 4 KS B ISO 71：2007 KS B ISO 7 1： 2007 5 6 . a) ：
10、 b) ： KS B ISO 7 c) . 1) R p R c R 2) 1 1 . 1 1/2 KS B ISO 7 Rp 1 1/2 KS B ISO 7 Rc 1 1/2 KS B ISO 7 R 1 1/2 d) LH . 7 . 7.1 7.1.1 1 . 55 , . 7.1.2 2 . 1 16 . 55 , . h . 7.1.3 , (6.4 ). KS B ISO 7 1： 2007 6 1 2 7.2 7.2.1 3 . . . H 0.960 491 Ph 0.640 327 P r 0.137 329 P H 0.960 237 Ph 0.640 327 Pr 0.
11、137 278 PKS B ISO 7 1： 2007 7 3 7.2.2 . 1 16 , Lmin , 1 17 80 % ( 4 ). 8 KS B ISO 7 2 . ( 5 ). 9 KS B ISO 228 1 A B G KS B ISO 7 1 Rp . KS B ISO 7 1 G . . KS B ISO 7 1： 2007 8 4 5 ( ) , 135513 7017 (02)60094114 (02)600948878 http:/ KS B ISO 7 1： 2007KSKSKS SKSKS KSKS SKS KS SKS KSKS SKSKS KSKSKS Pipe threads where pressuretight joints are made on the threads Dimensions, tolerances and designation ICS 21.040.30 Korean Agency for Technology and Standards http:/www.kats.go.kr
