BETOOLL Nitrogen Regulator with 0-800 PSI Delivery Pressure Equipment Brass Inlet Outlet Connection Gauges

Excellent for my DIY needs. I am an old certified mechanic (left the trade long ago) but kept myself current with tech. Anyways I feel qualified to give this regulator a solid recommendation as it the job done for small capital outlay. Helped get our ram air suspension fixed.

This was a nice find! The machining, finish, gauges, and included hose seem to be of good quality and are very nice looking. The low pressure regulator adjustment action was nice and smooth. I will not need to use this regulator on a daily basis but it looks like it is durable and built to last. I bought this regulator to attach to a N2 (nitrogen) gas cylinder specifically for use in testing an auto A/C system for leaks but it will come in handy for a number of different needs like filling the tires of our vehicles with nitrogen instead of regular air. Unfortunately, I didn't realize the thread on my A/C manifold gauge set for the yellow vacuum/charge hose has a 1/2" ACME thread and the hose that is included with this regulator is a 1/4" swage thread. This was my fault for not checking the threads before I purchased the regulator. Anyways, with adapters it all worked out and I am happy with this purchase.

Very sturdy and accurate gauge. Great price, especially compared to local HVAC distributors.

When I received the item I tried to test a refrigeration line set to about 500 PSI. I was struggling to apply enough force to move the regulator around 300 PSI, then the safety release blew out at 375 PSI which scared me when it happened. I couldn't get the pressure any higher without the safety release blowing out. I read from another review to adjust the safety regulator and apply a small amount of lubricant to improve the operation. I undid the handle and sprayed a few drops of oil into the assembly. I then undid the safety regulator nut and then screwed in the thread until I could achieve 500 PSI. This should really be spelled out well in some instructions if this is being marketed as a 600 PSI regulator.

Quality built. Smooth operation when setting pressures. No internal or external leakage. Great for checking system leaks before adding refrigerant.

Unfortunately it came with a bent internal plate. The peice that states what psi it is at one of the gauges. Unfortunately for me I did not see it until I went to use it which was out of exchange period. Still used it but since I couldn't see where I was at in psi for nitrogen. I drained my tank very quickly and messed up my copper soldering. It's my fault for not checking when it was delivered and im sure it was an accident. Ironically their fuel gauge I bought as well busted off the hose n sprayed diesel everywhere. These products are good for cheap but just be cautious like any other product out there.

Function as stated.

I bought this as a spare, and when I went to use it (needed it), I didn't have any fittings for the outlet. My understanding is that these fittings are measured by the nominal inside diameter, and the one I received is 1/8", not 1/4". Not only do I need to buy an adapter to make it work, the airflow is reduced. This inner diameter is actually smaller than the standard fittings. I use it to not only inflate kart tires, but to seat the beads, where I need the airflow. In fact, I use the larger diameter "V" fittings to get increased flow. This regulator will decrease the flow even below the standard fittings. The male outlet is itself a fitting that is screwed into the body, and appears to have the right size thread (1/4" FNPT - though I can't tell whether regular or NPT with it fully screwed in). I can't for the life of me get it to break free to remove to put in a large adapter. I can't get a good grip for it to stay in the vice with the extreme amount of force I'm applying. I guess I'm stuck with 1/8... :( I was actually confused about the sizing, since this was supposed to be 1/4". I had to go back and check all the other fittings and hoses as well as NPT sizing documentation to confirm all the others were indeed 1/4", and it was this regulator that was mislabeled....