The pipe sizes follow the HG20553Ⅰb series; what standard should be used for the connected fittings?

2015-11-16View Original

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The pipe sizes follow the HG20553Ⅰb series; what standard should be used for the connected fittings?

Reply #22015-11-19

Please read carefully the introductory section of specification 20553; the Ib series of pipes is obtained by rounding the Ia series pipes, and this does not affect welding in the field. If you have the chance, go to the project site more often and ask the construction workers more questions – that way you’ll understand

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