For the most part, most engineers will start out by cutting the pipe in order to correct the dimension and weld new flanges on it. However, this daunting process can be avoided only if the DBB Valves conform to the ASME B16.10 End-to-End Dimensions. In other words, the DBB valves have to be manufactured or designed according to the ASME B16.10 Standard.
Well, the good news is that producing such valves is possible. In other words, most DBB Valve Manufacturers can improve their design by integrating the two balls and one bleed valve into a Compact DBB Design that complies with the ASME B16.10 End to End Dimensions. Doing this will the entire process of replacing the Single Isolation Ball Valves with DBB Valves, and the best part is that you won’t have to go through the hassle of cutting any pipe.
If you want to know more, read that post about ASME B16.10.
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