管螺纹_外螺纹大径_内螺纹小径.doc

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1、管螺纹外螺纹大径内螺纹小径R1/8"-289.7288.566R1/4"-1913.15711.445R3/8"-1916.66314.951R1/2"-1420.95618.632(R5/8"-14)22.91220.588R3/4"-1426.44224.119R1"-1133.25030.292R1.1/4"-1141.91238.954R1.1/2"-1147.80544.847R1.3/4"-1153.74850.791R2"-1159.61656.659管螺纹外螺纹大径内螺纹小径G1/8"-289.7288.386G1/4"-1913.15711.445G3/8"-1915.86

2、214.95G1/2"-1420.95518.531(G5/8"-14)22.91120.587G3/4"-1426.44124.117G1"-1133.24930.291G1.1/4"-1141.9136.962G1.1/2"-1147.80344.845G1.3/4"-1153.74650.788G2"-1159.61456.556管螺纹外径内径Z1/8"-2710.2728.766Z1/4"-1813.57211.314Z3/8"-1817.05514.797Z1/2"-1421.22318.321Z3/4"-1426.56823.666Z1"-11.1/233.22829.694Z1

3、.1/4"-11.1/241.98538.451Z1.1/2"-11.1/248.05444.520Z2"-11.1/260.09256.558UNF管螺纹外径内径7/16"-2011.1139.91/2"-2012.70011.59/16"-1814.28812.93/4"-1619.05017.57/8"-1422.22520.51.1/16"-1226.98824.91.5/16"-1233.33831.31.5/8"-1241.27539.2SAE45°管螺纹外径内径3/8"-249.5258.67/16"-2011.1139.91/2"-2012.70011.55/8"-1815.

4、87514.23/4"-1618.90017.555°圆柱管螺纹的型式和尺寸BritishPipeThread(惠氏管螺纹)--圆柱(BSPP/BSPF)螺纹代号基本尺寸大径mmd=D螺距mmp每英寸牙数tpi中径mmd2=D2小径外螺纹d3牙型高度H1底孔尺寸mmG1/81/8＂9.7280.907289.1478.5660.5818.7G1/41/4＂13.1571.3371912.30111.4450.85611.6G3/83/8＂16.6621.3371915.80614.950.85615G1/21/2＂20.9551.8141419.79318.6311.16219G5/85/8

5、＂22.9111.8141421.74920.5871.16220.75G3/43/4＂26.4411.8141425.27924.1171.16224.5G7/87/8＂30.2011.8141429.03927.8771.16228G11＂33.2492.3091131.7730.2911.47930.5G11/811/8＂37.8972.3091136.41834.9391.47935G11/411/4＂41.912.3091140.43138.9521.47939.5G13/813/8＂44.3232.3091142.84441.3651.47941.5G11/211/2＂47.80

6、32.3091146.32444.8451.47945G13/413/4＂53.7462.3091152.26750.7881.47951G22＂59.6142.3091158.13556.6561.47957G21/421/4＂65.712.3091164.23162.7521.47963G21/221/2＂75.1842.3091173.70572.2261.47972.5G23/423/4＂81.5342.3091180.05578.5761.47979G33＂87.8842.3091186.40584.9261.47985.5G31/431/4＂93.982.3091192.5019

7、1.0221.47991G31/231/2＂100.332.3091198.35197.3721.47997.75G33/433/4＂106.682.30911105.201103.7221.479104G44＂113.032.30911111.55110.0721.479110.5G41/241/2＂125.732.30911124.251122.7721.479123G55＂138.432.3091113