I needed to top off my Great White tank today and decided to use the Yong Heng. I had posted previously about the temperature holding upper 40's the last time I used this compressor with crushed ice filling the reservoir (a tool box that holds about 2 gallons) and a ducted fan blowing across the heads. I was low on crushed ice today so I used two larger blocks in the reservoir with the same fan in use. About halfway through the top off, from about 3300 to about 3800, the indicated temperature had reached 60 degrees and climbed to 61/62. I stopped and went to the local ice machine and bought a bag of crushed ice to fill the reservoir. Then I restarted the process and completed the fill from 3800 to 4400 and the temperature held 51 to 52 degrees maximum to 4400. After the process I checked the small cotton filter I have inline upstream from a Diablo with dessicant and it was clean and dry. The last time I did a fill with this compressor the outside temperature was cooler but the conclusion seems clear-crushed ice in the water for the volume I use (about 2 gallons) makes a noticeable difference in operating temperature. I'm comfortable with those temperatures, even though 60 or even 65 might not cause any problem at all, and the compressor did the top off seemingly with ease after almost two years in use.
Yong Heng Cooling
- Thread starter bandg
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I like where your head is at, I have a very similar opinion and have had the same results, in almost everything mechanical or electrical, heat is your Enemy! Less of it is usually a good thing, also I think someone was posting using a bigger pump? Higher flow rates do not = better thermal exchange, at some point you hit a threshold of diminishing returns and it will regress, the OEM pump has plenty of flow, manage the temp of the coolant and they do just fine, watch the prime on start up though, sometimes they hesitate and you will hit 80deg C in a hurry
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Yup, when you are not using the recommended 5 gallons of water or even when you are ice helps allot. Lets you run the machine a bit longer. You are pushing the thing at 4400psi mine blew several burst discs near there. So now I don't fill past 4200 and have no problems.
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I've used the original pump for almost two years now with no issues. I keep the return line above water level so I can see that it is flowing easily. I filled to 4500 regularly in the past with no issues and I've never blown a burst disc. I've dropped it a bit as it's getting older but it just keeps chuggin along. I settled on the two gallons because it was easy to carry but mostly because a relatively small volume of ice will fill it and that may keep temps lower. It does have to be drained and refilled if filling a tank from empty but for the topping off one ice fill will pretty much get it done. Individual variation on the units may make some have issues at lower pressures than others but in general I agree that every bit of additional pressure probably causes exponentially more strain.
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I use a 5 gallon bucket with cold water and the entire contents of the ice cube reservoir from my refrigerator. My original water pump last only 1 use and failed so I replaced it with this one: https://www.ebay.com/itm/160-GPH-Submersible-Aquarium-Water-Pump-Fish-Tank-Powerhead-Fountain-Hydroponic/173028543346?hash=item28494e0b72:g
1EAAOSwR2RaL3ny
I fill my (3) SCBA's to 4200 psi and my temps never get over 45C. Going on 3 years now with no problems. BTW, the YH compressor is rated at 300 BAR which is 4350 psi so 4500 psi is pushing it beyond its specified limits.
1EAAOSwR2RaL3ny I fill my (3) SCBA's to 4200 psi and my temps never get over 45C. Going on 3 years now with no problems. BTW, the YH compressor is rated at 300 BAR which is 4350 psi so 4500 psi is pushing it beyond its specified limits.
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I believe the smaller water volume allows the same volume of ice to cool the water more than does a 5 gallon bucket. Considering that ice floats and your pump sinks, the pump will be picking up the warmer water from the bottom of the bucket. The smaller tool box reservoir allows the same volume of ice to nearly fill the container, keeping the water much cooler in my opinion. And I put the pump on one end and the return on the other so water has to move across the ice to reach the pump. Either method works and I'm glad you guys have had good service from the Yong Heng's you are using. I've more than received my money's worth using one as I do for almost two years now. But I agree one would probably last longer if filling is restricted to 4200. That said, it would probably last even longer if one only filled guns directly. All relative.
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Whatever you want to say is happening with warm vs cold water, the coolant reservoir full of small cubes ran about 10 degrees cooler than the same reservoir with 2 large blocks of ice in the water-reread the first bit above. Nothing else was different. And it ran that much cooler while running to a much higher pressure. Seems that it makes a substantial difference having a full reservoir of small ice. The important question doesn't seem to be WHY it happens but instead seems to be WILL a temp holding at 52 extend life over a temp that might run to mid/upper 60's? I don't know for sure but it is easy to keep it around 50 with the right setup.
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The key to why this happens is surface area. Crushed ice will cool the same volume of water much faster than large blocks.
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