Eight common threaded pipe and pipe fitting sizes and specification

Eight common threaded pipe sizes

1. Single-head thread short section: nominal diameter DN8/10/15/20/25/32/40/50NPS1/4, 3/8, 1/2, 3/4, 1, 1.1/4, 1.1/2 ,2. Outer diameter D13.5, 17.2, 21.3, 26.7, 33.4, 42.2, 48.3, 60.3. L is 60, 90, 120, 150, 180.

2, flat head outer wire (short pipe): nominal diameter DN8/10/15/20/25/32/40/50, NPS1/4, 3/8, 1/2, 3/4, 1, 1.1/4 , 1.1/2, 2. The outer diameters D13.5, 17.2, 21.3, 26.7, 33.4, 42.2, 48.3, and 60.3L are 60, 90, 120, 150, and 180.

3, double-head thread short section: nominal diameter DN8/10/15/20/25/32/40/50NPS1/4, 3/8, 1/2, 3/4, 1, 1.1/4, 1.1/2 ,2. Outer diameter D13.5, 17.2, 21.3, 26.7, 33.4, 42.2, 48.3, 60.3. L is 60, 90, 120, 150, 180.

4, hexagonal pipe plug: nominal diameter DN6/8/10/15/20/25/32/40/50/65/80/100NPS1/8, 1/4, 3/8, 1/2, 3/ 4, 1, 1.1/4, 1.1/2, 2, 2.1/2, 3, 4. Thread lengths L2min9.5, 11.0, 12.5, 14.5, 16.0, 19.0, 20.5, 20.5, 22.0, 27.0, 28.5, 32.0.

5, square head pipe plug: square head height Bmin6,6,8,10,11,13,14,16,17,19,21,25. Plane widths Cmin 7.0, 9.5, 11.0, 14.5, 16.0, 20.5, 24.5, 28.5, 33.5, 38.0, 43.0, 63.5.

6. Round head pipe plug: round head diameters D10, 13, 17, 21, 27, 33, 43, 48, 60, 73, 89, 114. Full length Lmin 35, 41, 41, 44, 44, 51, 51, 51, 64, 70, 70, 76.

7. Hex head plugs and joints: plane widths S11.0, 16.0, 17.5, 22.0, 27.0, 35.0, 44.5, 51.0, 63.5, 76.0, 89.0, 117.5. Hex head heights Kmin-, 3, 4, 5, 6, 7, 8, 9, 10, 10, 13Hmin6, 6, 8, 9, 10, 10, 14, 16, 17, 19, 21, 25.

8, square head pipe plug: This data and hexagonal pipe plug data can refer to the hexagonal pipe plug data. 

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