1WD63 - auto tank drain valve continuously leaking - check valve?
I have a dayton speed air 1WD63 7.5 hp compressor. The compressor will fill properly but when the motor stops then the auto tank drain valve will release all pressure till the motor kicks back in. Once the motor turns back on then the valve will shut off. The valve only opens when the motor is not running. What can I do to stop this from happening? My motor is running overtime to keep up with the air loss.
Jason, when you say the "auto tank drain valve" are you referring to the "unloader valve" that's often attached to the pressure switch?
If that is the case, then the issue is likely with your tank check valve.
Please click the Valve link from the nav bar, and then the Check Valve link for specifics. You might as well have a look at the Unloader Valve page too, for general info.
I believe if you fix the leak in your check valve, your compressor problem will be fixed too.
If it is not the unloader valve you are referring to, what valve is it? Please post your answer as a comment on this thread, OK?
i have a speedaire 5 hp 2 stage compressor ... It takes longer to fill
It takes longer to fill the tank and air does not stop coming out of the unloader. And I can hear air coming through the intake. Would that be a bad check valve or something else?
It sounds as though your Speedaire air compressor may have more than one problem.
For the air bleeding out of the unloader, read the page on CHECK VALVES to explain why this may occur.
That problem could also be a failing pressure switch not allowing the unloader valve to shut.
When you say you hear air coming through the intake, I'm not quite sure what this means. Is air coming out of the intake port while the compressor is running? Pull the intake filter to check this out.
Please comment here with your answers so I can follow our discussion.