Yes. For most of those uses you'll absolutely need to (airbrush) or will benefit from (nailer, etc) being able to dial in a specific pressure.
Norgren are a reputable brand of regulators, there are several others.
I would want a regulator and water condensing trap (you don't want to feed damp air into any spraying device). Simply fit it after the valve on the outlet of the compressor tank and move the quick release socket to the output end of the chain.
Buy a reg with a gauge (max reading to match your compressor, about 12 bar ?) to show the output pressure, and leave the existing gauge showing the pressure in the tank.
The various bits will probably all fit together using 1/4" British Standard Pipe Tapered (BSPT) threads, sealed with ptfe tape or some loctite thread lock specifically formulated for pneumatic fittings. That's quite cheap on ebay.
Note that the common pipe thread sizes are all made in both taper (BSPT) and parallel (BSPP) forms. Parallel ones seal using washers between shoulders or flats, tapers seal on the thread.
Taper is easier and I think more common for this application. Don't mix and match.
In Germany and some bits of Europe, G denote a parallel pipe thread and R denotes a taper. These are the first letters of German words describing each form.
Pressure gauges commonly have a 1/8" BSPT male thread and screw into a mating socket on the body of the regulator should you ever need to replace one.
Norgren are a reputable brand of regulators, there are several others.
I would want a regulator and water condensing trap (you don't want to feed damp air into any spraying device). Simply fit it after the valve on the outlet of the compressor tank and move the quick release socket to the output end of the chain.
Buy a reg with a gauge (max reading to match your compressor, about 12 bar ?) to show the output pressure, and leave the existing gauge showing the pressure in the tank.
The various bits will probably all fit together using 1/4" British Standard Pipe Tapered (BSPT) threads, sealed with ptfe tape or some loctite thread lock specifically formulated for pneumatic fittings. That's quite cheap on ebay.
Note that the common pipe thread sizes are all made in both taper (BSPT) and parallel (BSPP) forms. Parallel ones seal using washers between shoulders or flats, tapers seal on the thread.
Taper is easier and I think more common for this application. Don't mix and match.
In Germany and some bits of Europe, G denote a parallel pipe thread and R denotes a taper. These are the first letters of German words describing each form.
Pressure gauges commonly have a 1/8" BSPT male thread and screw into a mating socket on the body of the regulator should you ever need to replace one.
