Pipe specifications

2016-06-12View Original

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I have a question: What do 3B4 and HC50 specifically mean in 250-P-00110-3B4-HC50?

Reply #22016-06-12

3B4 should be the material grade, while HC50 should refer to the insulation type and thickness; the specific details can be found in the design specifications provided by the design institute

Reply #32016-06-12

I saw that B is 20# steel; what do those 3 and 4 mean?

Reply #42016-06-12

3 should represent CL300PN5.0, and 4 should represent a corrosion allowance of 3.2 mm

Reply #52016-06-12

You can’t guess this; it’s a reliable approach to ask the design institute

Reply #62016-06-12

This is the standard for Luoyang Institute; the 4th floor is correct.

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Pipe specifications

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