How long is 5D?

2018-08-24View Original

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“What is the length of 5D in “the distance of the straight pipe section shall not be less than 5D”?

Reply #22018-08-24

D refers to the diameter; 5D means 5 times the diameter. For example, if the pipe diameter is DN50, then the length of the straight pipe section must be at least 250 mm.

Reply #32018-08-24

5 times the diameter; generally, the longer, the better

Reply #42018-08-24

D refers to the diameter of the pipeline; different pipelines have different D values

Reply #52018-08-24

The DN nominal diameter is also known as the nominal diameter; D generally refers to the outer diameter, right?:$

Reply #62018-08-24

D refers to the inner diameter of the pipe, which is usually the nominal diameter.

Reply #72018-08-24

5D is five times the diameter of the pipe.

Reply #82018-08-25

5 times the diameter of the pipe; a longer length is better

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How long is 5D?

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