Hello, What is the problem with the one in the photo, It looks like an unloader,that once the comp is up to pressure will trip and send pressure to keep the inlet v/v open allowing the comp to continue running but just in free wheel mode. They are adjustable for trip and differential pressure.
Don't know if this helps,
Best regards Gordon.
Hi, Is the unloader as I described? If a repair is not possible why not convert it to have a normal pressure trip switch? What size is the motor?
Regards Gordon.
It looks like im going to have to go that way, its a continuous duty and flick a switch for intermittent duty its handy when using a lot of air to be on continuous and unloading to save stop start of the 3hp motor. thanks for your input
eil