As the match of the two carbon steel flanges can not be absolutely concentric, leading to carbon steel flange sealing surface is not parallel. ..
“Pression Nominal” is the rating designator followed by a designation number indicating the approximate pressure rating in bars. Piping Class ..
A weld neck flange (also known as a high-hub flange and tapered hub flange) is a type of flange. There are two designs. The regular type is used ..