Apprentice question
Verify first
Verify before you commit. Cheap to catch now.
If the blast gate housing ovalizes the pipe, reinforce the connection so the gate stays square and the pipe stays round.
['Thin spiral wall can distort when a heavy blast gate or clamp loads one area. Once the barrel goes oval, the internal gate slide may bind.', 'Loosen the housing, check pipe roundness, and add the approved sleeve/reinforcing ring/backing collar or replace the connection with a heavier fitting section before retightening.']