55度管螺纹尺寸(共5页)

1、精选优质文档-倾情为你奉上55°圆柱管螺纹的型式和尺寸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mmG 1/8 1/8"9.7280.907289.1478.5660.5818.7G 1/4 1/4"13.1571.3371912.30111.4450.85611.6G 3/8 3/8"16.6621.3371915.80614.950.85615G 1/2 1/2"20.9551.8141419.79318.6311.16219G 5/8 5/8"22.9111.81

2、41421.74920.5871.16220.75G 3/4 3/4"26.4411.8141425.27924.1171.16224.5G 7/8 7/8"30.2011.8141429.03927.8771.16228G 1 1"33.2492.3091131.7730.2911.47930.5G 1 1/8 1 1/8"37.8972.3091136.41834.9391.47935G 1 1/4 1 1/4"41.912.3091140.43138.9521.47939.5G 1 3/8 1 3/8" 44.3232.3091

3、142.84441.3651.47941.5G 1 1/2 1 1/2"47.8032.3091146.32444.8451.47945G 1 3/4 1 3/4"53.7462.3091152.26750.7881.47951G 2 2"59.6142.3091158.13556.6561.47957G 2 1/4 2 1/4"65.712.3091164.23162.7521.47963G 2 1/2 2 1/2"75.1842.3091173.70572.2261.47972.5G 2 3/4 2 3/4"81.5342.309

4、1180.05578.5761.47979G 3 3"87.8842.3091186.40584.9261.47985.G 3 1/4 3 1/4"93.982.3091192.50191.0221.47991G 3 1/2 3 1/2"100.332.3091198.35197.3721.47997.75G 3 3/4 3 3/4"106.682.30911105.201103.7221.479104G 4 4"113.032.30911111.55110.0721.479110.5G 4 1/2 4 1/2"125.732.309

5、11124.251122.7721.479123G 55"138.432.30911136.951135.4721.479136G 5 1/2 5 1/2"151.132.30911149.651148.1721.479148.5G 6 6"163.832.30911162.351160.8721.479161.555°圆锥管螺纹的型式和尺寸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圆弧尺寸 r底孔尺寸 mmR 1/161/16"7.7230.907287.1426.5610.5810.

6、1256.4R 1/81/8"9.7280.907289.1478.5660.5810.1258.4R 1/41/4"13.1571.3371912.30111.4450.8560.18411.2R 3/83/8"16.6621.3371915.80614.9500.8560.18414.75R 1/21/2"20.9551.8141419.79318.6311.1620.24918.25R 3/43/4"26.4411.8141425.27924.1171.1620.24923.75R 11"33.2492.3091131.7730

7、.2911.4790.31730R 1 1/41 1/4"41.9102.3091140.43138.9521.4790.31738.5R 1 1/21 1/2"47.8032.3091146.32444.8451.4790.31744.5R 22"59.6142.3091158.13556.6561.4790.31756R 2 1/22 1/2"75.1842.3091173.70572.2261.4790.31771R 33"87.8842.3091186.40584.9261.4790.31785.5R 44"113.0302.

8、30911111.551110.0721.4790.317110.5R 55"138.4302.30911136.951135.4721.4790.317136R 66"163.8302.30911162.351160.8721.4790.317161.51、密封管螺纹（R）密封管螺纹不加填料或密封质就能防止渗漏。用密封管螺纹内螺纹有圆锥、圆柱两种形式，外螺纹只有圆锥一种形式。配合方式：英制密封管螺纹有两种配合方式：圆柱内螺纹与圆锥外螺纹组成“柱/锥”配合；圆锥内螺纹与圆锥外螺纹组成“锥/锥”配合。欧洲国家主要采用“柱/锥”配合螺纹；而欧洲以外国家则主要采用“锥/锥”配合螺纹。 标记：英制密封圆柱内螺纹的特征代号为：RP； 英制密封圆锥内螺纹的特征代号为：RC； 英制密封圆锥外螺纹的特征代号为： R1（与英制密封圆柱内螺纹配合使用）； R2（与英制密封圆锥内螺纹配合使用）；对密封管螺纹，利用RP/R1，RC/R2分别表示“柱/锥” 和“锥/锥”螺纹副。2、非密封管螺纹非密封管螺纹主要用于压力较低的水管、煤气管道，连接时就加填料或密封质（麻丝、铅丹、聚四氟乙烯胶带等），以防止渗漏标记。非密封管螺纹不论内外螺纹都只有圆柱螺纹一种形式。英制非密封圆柱螺纹的特征代号为：G （例G1/4）当表示英制非密封管螺纹的螺纹副时，仅