Which Piping Code do use for Blast Furnace Gas, Coke Oven Gas ?

Hello Moorthy,

If one of the B31 Codes is to be chosen, the owner must be asked to make this decision. B31 has placed the responsibility for deciding which Code to use in the hands of the owner.

I have always used B31.3 for design/analysis of blast furnace gas and coke oven gas. It would also be advisable to get a corrosion expert involved as these gases tend to be sour.

Regards, John.

Thnx John.

But ASME B31.8 is for Gas transmission and distribution systems, then how can i use B31.3.

Which is good john..B31.3 or B31.8 ?

Hi Moorthy,

First of all, have your firm get a decision in writing from the owner regarding the Code you are to use.

The B31.4 and B31.8 Codes are intended for cross-country transportation of fluids and typically this implies buried piping. The B31.11 Code is intended for slurry piping and this is not what you have. If the majority of the piping at issue will not be buried, and if it is not refrigeration piping (B31.5) and it is not power piping (B31.1)and it is not building piping (B31.9)then all you are left with is B31.3 Process Piping. That is a Code that has a broad applicability and includes rules that are easily adapted to the systems that you want to evaluate. Have a look at the Scope paragraphs of these Codes to get a better feel for what each is intended to be applied to.

Regards, John.