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The process design requires pipes with a diameter of 400 mm, but they are not available on the market. What should be done?

2018-12-17View Original

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The process design requires pipes with a diameter of 400 mm, but they are not available on the market. What should be done?
Reply #22018-12-17
The diameter of the 16\" pipe is 406.4 mm – will that work?
Reply #32018-12-17
Haha, it’s an approximate size. According to GB/T21835, the diameter is 406; if you need a large quantity, you can order directly from the supplier
Reply #42018-12-17
Tubes with an outer diameter of 426 are available on the market
Reply #52018-12-18
Tubes with a diameter larger than 400 do exist; spiral welded pipes and straight-seam pipes are quite common. Generally, the operating pressure of large-diameter pipes is not very high, nor is the hazard level of the fluid involved very high; for example, circulating water and air release systems can both make use of such grooved pipes
Reply #62018-12-18
Hello, if you need one with a diameter of 400, I can manufacture it for you. My contact number is 18833768768, Liu
Reply #72018-12-19
According to standard GB/T21835, select the one with the diameter that is closest; this should allow for communication with the process design team

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