Porter Cable 150 psi 6 gal compressor tank builds up to 150 psi but 'regulated air' stays at zero and, of course, no air out. Thanks

1. The regulated pressure is at the output of the pressure regulator i/e the air pressure being delivered to the air tool or spray gun.
   
2. This can be set from just a few PSI up to about 180 PSI (on my Porter Cable unit).
   

If your quick coupler is not jammed up, (remove & test) and assuming you are pulling the regulator knob out to adjust the pressure and it is not stripped, you will need a new manifold kit.
There are about 6 versions of this unit so you will need model and type to get the correct part. There are no individual regulator parts available for this unit.

nothing
it is the regulator that is faulty

The maximum pressure on most small compressors is 10 bar or 1000kpa which is about 145 psi in the old language most safety valves are set to 150 psi. I suggest you get some one to reduce the pressure switch setting. Running a compressor at elevated pressures does not give you any more air. A reasonable pressure for small compressors is 120 psi

Hi scooterb88...
Sounds like your pressure regulator needs adjustment...
Turn the knob on the pressure regulator clockwise and you should start hearing air coming out of your hose...Once air is coming out, remove your hose and keep turning the regulator till you get to your desired working pressure normally around 90 psi...leave your pressure regulator at that setting and it will stay at that setting.
Please take time to rate me

Try tightning your regulator all the way, then loosening, then see if air passes thru

Always at zero,like the regulator is broken?

I would assume that you never set it to whatever
pressure you want to use

replace the regulator

150 lbs is the amount of pressure in the tank. When you connect a nail gun for instance you cannot nail everything at 150 lbs of pressure, it will blast through. The regulated pressure is at zero because you have the ability to regulate it by turn the know under or beside it to increase the output pressure to your desired amount. I was building a shelf last week and set my regulated to 80lbs with a brad and it blew through the panel and stuck in the floor. After you get to know your nail gun you will be able to regulate it between 60 and 80 depending on the type of wood. Panel - 50 lbs, Oak, 90 lbs, etc. Pleas remember to rate this solution high if it was helpful and explained it to your satisfaction.

YOU WILL NEVER GET 150 UNLESS YOU PUT A DIGITAL GAUGE.