Pictures first then text.

This is the regulator out of the box. We will be removing the large hose barb.

Hose barb removed.

The adapter ready to place into the port where the hose barb was. This adapter is a 1/4" to 1/8" adapter. Note the use of pipe dope (the white stuff), I use a non-hardening pipe dope so I can later disassemble the regulator if needed.

Adapter installed.

I have just installed a 1/8" hex nipple into the adapter.

Solenoid installed on to the hex nipple. Again using pipe dope on all connections. Ignore the thumb.

Clippard Low Pressure regulator installed into solenoid and needle valve installed into LPR.

That's pretty much it. If you are not using a solenoid and/pr a LPR then you just use another pipe nipple and coupling along with a 1/8" to 10-32 adapter to mount the needle valve.

I can build a regulator for you if you wish. See the Sale Page. All parts show are also available.