They assist in bleeding the system. They also circulate oil through the pump thus eliminating the aeration the pump produces in a single pipe system. If anything, the oil at the nozzle is cooler with a tiger loop.
riello burner issue
- Thread starter Tomswan
- Start date
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That's interesting, thanks. I did not know that the pump would produce air in a single pipe system. Any idea how that happens (just to satisfy my curiosity)? At first glance it seems as if no air ought to be able to get into a single pipe system once it is properly bled.
If you constantly stir up a reservoir of oil in the pump, taking out only a little at a time, it heats up and produces bubbles.
Well, that's interesting. Means there is air in fine suspension in the oil which doesn't come out when it is in the tank but does when it is agitated in the pump. I did not know that. I knew water could be in fine suspension, called emulsification I think. So in the pump there is likely to be oil mixed with air and water.
I can see the value of the tiger loop now. Thanks.
Maybe I should also be thinking about a water separation filter.
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Maybe you're over thinking?
An in line filter will also separate water at the rate of flow a boiler creates. You probably already have one.
An in line filter will also separate water at the rate of flow a boiler creates. You probably already have one.
I don't think there is an oil-water separator anywhere on the feed. There's the tank filter which is for large particles and then the standard 10 micron paper bowl filter near the boiler, then the pump strainer inside the actual pump. No filter specifically for removing water though. I've seen them advertised but don't know whether they are in common usage.
I could be overthinking, but I'm just trying to avoid another breakdown in the middle of a cold snap.
As I said, at boiler flow rates, your two filters will more then catch any water passing through. The normal levels of water content will not cause a problem. You decided that the aeration caused by the pump in a single pipe oil feed was due to water. It is not. The agitation of fuel in a hot pump will produce air, hence the term for a tiger loop is a de-aerator.
Ah, ok, I misunderstood. I had it fixed in my mind that there would need to be a separate container for separated water to collect in, which obviously isn't there for the standard in line filter. It didn't occur to me until I read your last post that the paper filter itself would take out the water and hold it. Thanks for persisting with it. it is worth it for me me because now I understand why paper filters are important.
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