Review on ZENY Airbrush Compressor Airbrushing Multipurpose by Jessica Lewis

I bought this compressor primarily for model making to replace a SPRAYIT compressor which finally broke down after 32 years of faithful service. I've read every compressor review I could find (they are sold under different brand names) and the main problem seemed to be the gasket between the high pressure receiver and the regulator/waterlock. I felt I could handle it so I ordered a compressor and it arrived on time. I screwed the regulator/water separator to the adapter on the tank with the supplied tape, turned on the compressor and sure enough the seal was leaking. I took it apart, looked at the threads in the regulator/water trap and saw a cut out for the o-ring. The in-tank adapter had no o-ring seat or o-ring lip. This meant it wasn't the right adapter. I used a large wrench to remove the adapter from the hydraulic tank. It was difficult because it was sealed with some kind of solid rubble. I cleaned the threads on the fitting and in the nut welded to the tank with acetone and sharpened to the shape of the threads with a toothpick (Fig. 1). Then I made a few calls and found a shop that did only fittings (FITTINGS, Inc., in Seattle). I took the compressor and regulator to FITTINGS, Inc., where they found that the threads on the right side of the fitting and the threaded hole in the regulator they were supposed to screw into were two different threads. The right side of the fitting was BSPT (British Standard Pipe Taper) and the hole it was designed to screw into was BSPP (British Standard Pipe Parallel). It's an unfortunate coincidence, which is why several reviewers have stated that it takes 25 turns of tape to seal. , and that the threads on the fitting that screws into the tank were 1/8-inch NPP (American National Pipe Parallel) threads, which are not compatible with the NPT threads in the weld nut, so it's compatible with had to be sealed with a hard mass. Bottom Line: The adapter fitting that originally screwed into the tank had the wrong threads on BOTH ENDS. Picture 2 shows the original fitting. Picture 3 shows the thread deviation. FITTINGS Inc. got a proper fit with the correct threads on both sides for a little over $7. A trip to the local o-ring store confirmed that the o-ring I got from the local hardware store was the right size. with O-ring and picture 5 shows the correct thread adjustment. Once I had the right adapter and o-ring, a few wraps of tape on the conical side, and a bit of lube on the o-ring side, it was properly sealed. My regulator/waterlock was crooked when assembled, but this did not affect the operation of the compressor. The compressor is quiet, it only works at low pressure in the tank and I was VERY happy with its performance. Operation. I replaced the small split ring used as a finger pull to depressurize the tank with a heavier piece of wire that won't buckle or cut my finger when pulled. All in all a very nice little device.