ASME B16.9 reducer thickness

[TomoB]

Hello,

I am performing a pipe stress analysis for a system and have encountered some confusion regarding the wall thickness of reducers.

After reviewing the ASME B16.9 standard, I found that no specific wall thickness is defined for reducers. I also searched through the forum and learned that, unlike EN standards, there are no standardized wall thickness values for these components.

From my understanding, design of a reducer is determined by the specified wall thickness of the connected pipe, i.e., the wall thickness at the ends of the reducer. However, the wall thickness and design of the reducer body itself are left to the manufacturer's choice, provided they comply with the ASME B31.1 code.

My question is: How can I determine the appropriate values to use for the reducer in my calculations?

Thank you for your time!

 

[r6155]

Please, see the following in ASME B36.10 Foreword

The Schedule Numbers were then adopted strictly as a convenient designation system for use in ordering.

It was the hope in 1939 that the designation of pipe used commercially by all industry as Standard weight, Extra-Strong, and Double Extra-Strong would gradually be replaced by Schedule Number designation.

Regards

 

[LittleInch]

The reality is that that hasn't happened.

A bit like flange classes are still called lb or # 50 years after that officially became class xxx....

 

[r6155]

It is true as you say, but I must write as specified by the standard or Code.

Regards