In engineering, it is inevitable to use some threaded pipe fittings. If you don't know the size or type, it will make your project in a certain aspect difficult to solve, so you can understand it properly. Friends who study engineering will often come into contact with these things. If you don't understand these things, the consequences will be really troublesome. Threaded pipe fittings can be roughly divided into flat-headed outer wire and single-headed threaded nipple. , double nipple, hexagonal plug, square plug, threaded cap, threaded cross, threaded elbow, threaded tee, etc. Let Bian Xiao explain their size for you.

Eight common sizes of threaded pipe fittings

1. Single threaded joint: nominal diameter DN? 8/ 10/ 15/20/25/32/40/50n PS？ 1/4、3/8、 1/2、3/4、 1、 1. 1/4、 1. 1/2、2? Outside diameters D 13.5, 17.2, 2 1.3, 26.7, 33.4, 42.2, 48.3, 60.3? L is 60,90, 120, 150, 180.

2. Flat-headed outer wire (short tube): nominal diameter DN? 8/1 0/15/20/25/32/40/50, NPS 1/4, 3/8, 1/2, 3/4,1,/.

3. Double threaded joint: nominal diameter DN? 8/ 10/ 15/20/25/32/40/50n PS？ 1/4、3/8、 1/2、3/4、 1、 1. 1/4、 1. 1/2、2? Outside diameters D 13.5, 17.2, 2 1.3, 26.7, 33.4, 42.2, 48.3, 60.3? L is 60,90, 120, 150, 180.

4. Hexagon plug? : Nominal diameter? DN？ 6/8/ 10/ 15/20/25/32/40/50/65/80/ 100 NPS？ 1/8, 1/4, 3/8, 1/2, 3/4, 1, 1. 1/4, 1. 1/2 14.5、 16.0、 19.0、20.5、20.5、22.0、27.0、28.5、32.0?

5. square head plug: square head height b? Min6，6，8， 10， 1 1， 13， 14， 16， 17， 19，2 1，265。 min7.0、9.5、 1 1.0、 14.5、 16.0、20.5、24.5、28.5、33.5、38.0、43.0、63.5？

6. Round-headed pipe plug: round-headed diameter D 10, 13,17,21,27,33,43,48,60,73,89,1/kloc-. Full length l? min35、4 1、4 1、44、44、5 1、5 1、64、70、70、76

7. Hexagon plugs and connectors: plane width S 1 1.0, 16.0, 17.5, 22.0, 27.0, 35.0, 44.5, 51.0,60. Hexagon head height k? Min? -、3、4、5、6、7、8、9、 10、 10、 13? h？ min6、6、8、9、 10、 10、 14、 16、 17、 19、2 1、25

8. Square plug: This data can refer to hexagonal plug data or hexagonal plug data.

The above small series refers to the international common series of steel pipes (imperial pipes)? Inch Pipeline calculation shows that the parameters used in domestic series are not used, which needs attention. Here is just to give you a certain understanding of the size of threaded pipe fittings, so Bian Xiao did not list too much data. If you really need to know more information, I suggest you refer to relevant professional books and study more in the future.

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