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Hi all, I bought a Brunner air compressor yesterday and hooked it up 220v today. It runs great and is real quiet, I had a conversation standing next to it while it was running and neither of us had to raise our voices. The thing is, I cant find any info on it. it has a Brunner plate on the tank side and that's it. No other tags, numbers, stampings or castings anywhere. The pressure gauge at the air out end goes to 300 psi and looks like it's from the 40's or 30's. Two stage compressor, all cast iron. 5 hp Dayton motor. It needs a pressure switch diaphragm though. What I want to know is how much this thing will hold for pressure? Can I replace that original pressure switch with a new one that has the same number of outlet/inlets? How many gallons is the tank? 60...80? How old is it?
Thanks, see the attached pic.![IMG_0974.jpg IMG_0974.jpg](https://www.forbbodiesonly.com/moparforum/data/attachments/209/209132-86ccc61af4327d16aff0d3c945209693.jpg)
Thanks, see the attached pic.
![IMG_0974.jpg IMG_0974.jpg](https://www.forbbodiesonly.com/moparforum/data/attachments/209/209132-86ccc61af4327d16aff0d3c945209693.jpg)