I know that a lot of you have utilized white 4" PVC pipe in their workshop
Dust Collection systems. I am thinking about doing the same in order
provide multiple inputs around my shop for a 2 HP DC. However, I note that
when buying the 4" PVC that measurement denotes the inside diameter, while
standard WW DC hardware (blast gates and other connections) measure 4" as
the outside diameter. If I were to integrate the PVC with standard WW
flexible hose and other fittings, how does one make the mechanical
connections between the two sets of materials? Does one just jam the WW
parts into the PVC? Are there adapters in the plumbing world that could be
used to transition between the two systems?

Thanks in advance for your advice.

TEF