I though it might be useful to start a blast gate gallery that way folks about to embark on their ducting voyage can see lots of gates all in one thread.
Please add any sort of blast gates you have made or purchased or know about.
MDF can be used in place of Al or PVC sheet.
These are the first all PVC 150 mm slider gates I made back in 2011.
They use a 150 mm DWV coupler (this makes them female gates) cut in half and PVC glued to 3mm PVC main body and 2mm PVC slider.
The 3mm PVC was rescued from a skip, the 2mm I bought and a coupler cost $7.
I ended up making 8 of these and they are all still in use and working well.
Attachment 406003
All PVC 100 mm slider.
The body of this gate comes from the 150 mm cut outs of the 150 mm sliders above.
This one has a reducer permanently glued on the inlet and that hose is used on some power tools.
The outlet is a male end.
Attachment 406004
All PVC 150mm male rocker.
Same 3mm PVC sheet as those above
Attachment 406005
All PVC 100 mm male rocker.
It's easily accessible so it didn't need to be a rocker but I had enough pieces of PVC left over from making the 150 mm rocker above so I made it as a rocker.
Attachment 406006
This is a 150mm Al rocker with male PVC connections made for the mens shed.
Al is 3mm - we used it because we had heaps of it (old hospital campus signs).
The PVC is epoxied to the Al and reinforced with glued and screwed Al brackets i.e. a lot of work
Attachment 406007
Same as above but this time the Al brackets are TIGed to the gate body - still a lot of work
Attachment 406008
Al/PVC 150 mm male Slider - slide is HDPE.
This uses home made PVC flange connections glued to the Al body.
Definitely much simpler to make than the connection shown for the Al/PVC rockers above.
I will apply the flange idea to the next batch of 150 mm Al/PVC rockers for the mens shed system.
Attachment 406009
Because this is the first time I have posted about these here are a couple more pics of this one.
Attachment 406010
Attachment 406011