I need to duct a PVC pipe (DN80) through a stainless steel sheet metal covering. The hole thing needs to be tight against stormwater. There's tons of products to duct pipes through thick walls, but I'm at loss on how to do that here. The cover is horizontal, upside checkered. Ideas I've considered:
- Welding a short stainless steel pipe stub onto the sheet and use a ring seal
- Hole with ID of pipe in steel sheet, flange the pipe through the sheet
Both of these appear overblown to me.