How To: Block Off Large Bore Pipe
Posted: Sat Jan 05, 2008 12:00 am
Well in this how-to, i'll show you my way of sealing off large bore pipe for a stock or something similar.
I'll be using a 2" tee as the fitting I want to seal off, it should work with any fitting.
What you need:
Sheet PVC
Fitting (that you want to seal off)
Pipe (the same diameter as the fitting)
PVC primer and glue
Hole saw
Bolt
Step 1: Making sheet PVC
1. Cut a piece of PVC pipe lengthways
2. Heat the PVC with a heat gun (or other method) until soft.
3. Lay flat and put something flat and heavy on top until cooled down.
You now have sheet PVC.
Step 2: Cutting the PVC
Grab a holesaw that is similar size to the I.D of the fitting you want to block off.
If you don't have one that is close enough, just go a bit bigger, it's easy to sand down sheet pvc.
If your holesaw has a drill bit in the middle, don't worry we can close the hole in the PVC up later.
Once your PVC disk is cut, cut another one that is similar in size to the I.D of the piece of pipe that fits into the fitting.
This piece of pipe is going to be used to join another fitting on, say if you wanted a stock on your gun etc. In my case it's a barrel support.
Step 3: Covering hole in disk made by holesaw
Well if your holesaw is like mine and drills a hole in everything it cuts, you'll need to cover the hole up.
I did this with a simple nut and bolt. Just adjust the hole in the disks to a size that fits a bolt nicely.
Step 4: Joining the disks
Thread the bolt through both disks, and apply PVC glue and primer between the two disks and hold together for 30seconds.
Tighten the bolt up and apply some silicon sealant or other sealant or epoxy around the bolt to make sure a good seal.
Step 5: Finishing
Check the disks fit in the fitting all the way down to the lip, and then apply glue and primer to the inside of the pipe (not the fitting) and the smaller disk on the larger disk should fit inside this pipe.
Once that's glued, apply glue and primer to the inside of the fitting and the outside of the pipe and on the face of larger disk that is going to seal against the lip in the fitting.
Now just push the pipe into the fitting and hold for 30seconds.
And that's that, now you just need to glue on your stock or other fitting onto the other end of the pipe.
Here are some pics...
Oh yeah i know the fittings are dirty and look like sh|t, I just threw this together for show
If you're confused, feel free to ask questions but it's pretty straight forward.
I'll be using a 2" tee as the fitting I want to seal off, it should work with any fitting.
What you need:
Sheet PVC
Fitting (that you want to seal off)
Pipe (the same diameter as the fitting)
PVC primer and glue
Hole saw
Bolt
Step 1: Making sheet PVC
1. Cut a piece of PVC pipe lengthways
2. Heat the PVC with a heat gun (or other method) until soft.
3. Lay flat and put something flat and heavy on top until cooled down.
You now have sheet PVC.
Step 2: Cutting the PVC
Grab a holesaw that is similar size to the I.D of the fitting you want to block off.
If you don't have one that is close enough, just go a bit bigger, it's easy to sand down sheet pvc.
If your holesaw has a drill bit in the middle, don't worry we can close the hole in the PVC up later.
Once your PVC disk is cut, cut another one that is similar in size to the I.D of the piece of pipe that fits into the fitting.
This piece of pipe is going to be used to join another fitting on, say if you wanted a stock on your gun etc. In my case it's a barrel support.
Step 3: Covering hole in disk made by holesaw
Well if your holesaw is like mine and drills a hole in everything it cuts, you'll need to cover the hole up.
I did this with a simple nut and bolt. Just adjust the hole in the disks to a size that fits a bolt nicely.
Step 4: Joining the disks
Thread the bolt through both disks, and apply PVC glue and primer between the two disks and hold together for 30seconds.
Tighten the bolt up and apply some silicon sealant or other sealant or epoxy around the bolt to make sure a good seal.
Step 5: Finishing
Check the disks fit in the fitting all the way down to the lip, and then apply glue and primer to the inside of the pipe (not the fitting) and the smaller disk on the larger disk should fit inside this pipe.
Once that's glued, apply glue and primer to the inside of the fitting and the outside of the pipe and on the face of larger disk that is going to seal against the lip in the fitting.
Now just push the pipe into the fitting and hold for 30seconds.
And that's that, now you just need to glue on your stock or other fitting onto the other end of the pipe.
Here are some pics...
Oh yeah i know the fittings are dirty and look like sh|t, I just threw this together for show
If you're confused, feel free to ask questions but it's pretty straight forward.