Dust Collection Round Ductwork at -60" WC Design Criteria Needed
Dust Collection Round Ductwork at -60" WC Design Criteria Needed
(OP)
In SMACNA 005, "Round Industrial Duct Construction Standards" the Table of support spacing and stiffener requirements only goes as low as -30 inch WC. Does anyone know of tables going lower to -60 " WC, about -2.5 psi. Any suggestions as who I could contact for assistnace in developing criteria?





RE: Dust Collection Round Ductwork at -60" WC Design Criteria Needed
Not the answer you are seeking, but I would look into just using schedule 10 piping.. It is probably going to be cheaper than welding all the stiffening rings you are going to need.
Piping is good for full vacuum. At least there is a standard that covers it.
I am not personally aware of any software that would do the calcs. ASME piping codes defer to boiler and pressure vessel code for calculating for external pressure. That would be another option to look into.
Real world knowledge doesn't fall out of the sky on a parachute, but rather is gained in small increments during moments of panic or curiosity.
RE: Dust Collection Round Ductwork at -60" WC Design Criteria Needed
RE: Dust Collection Round Ductwork at -60" WC Design Criteria Needed
Any comments on this approach?