This is a old air tank that I use for starting fires and for filling my air cannon.
This tank was made with parts that where on hand a many many years ago. I had to take it apart because of a small leak and wanted to show how it was made.
Use an EMPTY propane tank. You don't want gas leaking out and causing an explosion. Also compressed air can be dangerous. I'm not sure what a propane tank is rated for but keeping the PSI at a reasonable amount should be OK.
Step 1: Whats needed
Parts (All in sizes inches)
- standard EMPTY BBQ propane tank with vale removed. Preferably newer then the one I used
- Air gauge 0-100 PSI (could go higher then 100)
- 1/4 female T
- 1/4 T male/female though female take off
- 1/4 male nipple
- 3/4 to 1/2 reducer
- 1/2 to 1/4 reducer
- 2 female air couplings
- pipe joint compound
- 5/8 wrench
- 11/16 wrecnh
- 3/4 wrench
- 3/8 to 1-1/4 adjustable wrench (1" wrench)
If needed, a regular pipe wrench .
Step 2: Removing the propane tank valve.
I am not so sure on this part. Find a wrench that fits and apply some torque.
Step 3: 3/4 to 1/2 reducer
Apply joint compound around threads and screw it in. The reducer needs to be very tight so it does not come lose.
Step 4: 1/2 to 1/4 reducer
Apply joint compound around threads and screw it in. A 3/4 wrench should tighten it.
Step 5: 1/4 male/femal through female take off
Apply joint compound around bottom thread and screw it in. Tighten the T with a 3/4 wrench to where it points at where the gap is in the rim/handle on the tank.
Step 6: Gauge
Apply joint compound around threads and screw in the air gauge. Tighten with wrench to where the the text is readable and not lopsided. I used a 0-100 PSI but higher is OK. The compressor I use only puts out 115 PSI.
Step 7: 1/4 male nipple
Apply joint compound around one of the threads and screw it in. Tighten with wrench.
Step 8: 1/4 female T
Apply joint compound around threads of the nipple and tighten the with a wrench to the T is in line with the other T.