I can't seem to figure this one out.
Yong Heng slowly purrs right along until it starts approaching 4500psi. Then there is a sudden pressure runaway increase toward 5k and I do a quick shutdown. Almost like there is a line blockage.
I run 2 different sized refill tanks and it always does it on both.
I use one of those long tube style water/oil separators. Internal is just foam pads on each end filled with molecular sieve material.
I thought maybe compression of the foam end might be allowing sieve material to block the tube outlet, so I tried using one of the cheap short filters that came with the compressor. (short round cotton filter at inlet, molecular sieve material and foam pad at output) Same thing.
In an attempt to diagnose the issue I then tried a direct line connection (no filter/separator). Trying 2 different hoses. Same thing. Testing the hoses with nothing attached there is zero pressure buildup.
I've done a complete tear down of the compressor a couple of times checking for blockages and can't find a thing. Everything seems to check out. Low to high pressure valve is clean and free. All tubes and pathway blocks are clear.
I've always noticed that the compressor pressure and tank fill pressure diverge at a point.. IE., the compressor and tank gauge are fairly close until it starts breaking over 4k. The compressor gauge may read up to 4,500, but the tank pressure is maybe around 4,100. I've always assumed I was just loosing pressure in the 2 fill hoses and long separator chamber, but could that be an indication of what might be contributing to the runaway pressure issue?
I'm dumbfounded and figured it was time to dip into the wealth of knowledge around here. Seeing how I'm only refilling a small 3k rifle tank, I've been okay with only 4k refill tank fills, but since I stopped years of lurking and joined.... I might as well take advantage and ask, right?
Yong Heng slowly purrs right along until it starts approaching 4500psi. Then there is a sudden pressure runaway increase toward 5k and I do a quick shutdown. Almost like there is a line blockage.
I run 2 different sized refill tanks and it always does it on both.
I use one of those long tube style water/oil separators. Internal is just foam pads on each end filled with molecular sieve material.
I thought maybe compression of the foam end might be allowing sieve material to block the tube outlet, so I tried using one of the cheap short filters that came with the compressor. (short round cotton filter at inlet, molecular sieve material and foam pad at output) Same thing.
In an attempt to diagnose the issue I then tried a direct line connection (no filter/separator). Trying 2 different hoses. Same thing. Testing the hoses with nothing attached there is zero pressure buildup.
I've done a complete tear down of the compressor a couple of times checking for blockages and can't find a thing. Everything seems to check out. Low to high pressure valve is clean and free. All tubes and pathway blocks are clear.
I've always noticed that the compressor pressure and tank fill pressure diverge at a point.. IE., the compressor and tank gauge are fairly close until it starts breaking over 4k. The compressor gauge may read up to 4,500, but the tank pressure is maybe around 4,100. I've always assumed I was just loosing pressure in the 2 fill hoses and long separator chamber, but could that be an indication of what might be contributing to the runaway pressure issue?
I'm dumbfounded and figured it was time to dip into the wealth of knowledge around here. Seeing how I'm only refilling a small 3k rifle tank, I've been okay with only 4k refill tank fills, but since I stopped years of lurking and joined.... I might as well take advantage and ask, right?
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