What is the inner diameter of the heating pipeline?

2016-10-10View Original

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I’ve looked up a lot of information but still can’t figure it out: what is the typical inner diameter of conventional heating pipes? Is the inner diameter of DN20 27 mm? Please ask someone in the industry to help answer this question. Thank you

Reply #22016-10-10

DN20 refers to a pipe with an inner diameter of 20 and an outer diameter of 25

Reply #32016-10-10

Oh, thank you. I’ve been looking at many calorimeters lately, and the inner diameter of their connections isn’t 20; it’s quite strange

Reply #42017-05-20

The inner diameter of a DN20 pipe is 20mm

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What is the inner diameter of the heating pipeline?

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