Tank Prep
The air tank probably came with some fittings in place. They have too small of an outlet diameter to do anything fun and air blaster-y -- Grab your wrench and remove those!
Fitting Prep
Lay out all of the fittings so you have an idea of the assembly order and can double-check you've got all of the parts needed.
- industrial plug (for filling with your compressor line)
- shut-off valve
- pipe nipple
- regulator
SAFETY UPDATE: I added a 125 PSI pressure relief valve and a 1/4" tee to the build to be extra safe. You can do the same by omitting the 1/4" x 4" nipple and running the inlet to the tee as shown with two 1/4" x 1-1/2" nipples to connect.
- pipe nipple
- tee fitting
- pressure regulator
- pipe nipple
- bushing
- tee fitting
- vertical pipe nipple to tank
- pipe nipple
- shut-off valve
- pipe nipple
- solenoid valve
- long pipe nipple (barrel)
Dry Fit
Before you tape the threads and crank everything on with a pair of wrenches, it's a good idea to dry fit the whole assembly. Thread everything together by hand, just keep it finger-tight.
Here is a dry fit test I did before I had the solenoid valve in place.
Taping
For the final assembly you'll need to seal all of the threads with sealing tape. Wrap it starting at the bottom of the threads going counter-clockwise and overlapping by at least half of the tape width with each turn. Pull to stretch and break the thread from the roll.
Threading
Thread each part together using two wrenches (adjustable and/or pipe as needed) to crank them down hard, otherwise there will be leaks!
Here's the full assembly, minus the tank.
Screw the assembly onto the tank -- it's best to use a pipe wrench on the pipe nipple closest to the tank flange, rather than pulling on the barrel, as tempting as that is, just to avoid bending any fittings.
Page last edited October 17, 2024
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