Let's say there is 3,000 psi already in you PCP , but you want to top it off to 4,500. Is there something you need to do , so it won't mess up your compressor.
Topping off at high pressure.
- Thread starter OldVet
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Nope! The only thing I might add is that even though your compressor is rated to 4500psi I'd not push it past 4200-4300psi. It's the last few hundred lbs that puts the most strain on the compressor.
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Start the compressor with the bleed screw open. Let it run under no-load for five seconds or so before closing the bleed screw.
JackHughs
JackHughs
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The gun's one way valve is the key. I added one at the inlet to my "extra" moisture filter for my Yong Hang. That way I can open the valve on my bottle right after starting the compressor and I know I am not hurting my compressor. No more waiting for compressor pressure to build before opening the bottle's valve. The gun has the one way valve built in, of course.
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I would not suggest anybody start their compressor with the bleed valve closed but actually on a gun fill or any situation where there is no pressure in the line, it isn't going to hurt anything by closing the bleed valve before startup. The goal is for the compressor to not see any pressure at startup. That goal is met. But it would be a bad habit to get into. If you were to do this filling a bottle (without a one way valve in the line) it could make your compressor inoperable. Damage it. Even one time.
So the right habit is to close the bleed valve after the compressor starts and open it before turning the compressor off. Starts and stops should not be against pressure. Nothing to be gained closing the bleed valve early.
So the right habit is to close the bleed valve after the compressor starts and open it before turning the compressor off. Starts and stops should not be against pressure. Nothing to be gained closing the bleed valve early.
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