The legendary self-priming tank
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I came across a pump in the workshop; let’s take a look and see what problems exist with this tank during use, and whether there are any areas that need improvement
As a layperson, let me share a few thoughts: 1. The bolts on the pump’s inlet and outlet flanges are not fully tightened, and it seems that there is stress applied during assembly between the pump’s outlet flange and the mating flange, which could lead to vibration. 2. There are no foundation bolts for the pump; although tests are carried out at the pump factory, at least a few bolts should be used. I can’t see anything else for now; looking forward to the poster’s additional information. :lol
I think it’s because the feed inlet of the self-priming tank is too low; not much material can stay inside the tank, which reduces the self-priming effect
It prevents clogging and air leakage; nothing else. It’s still very useful; the only downside is that it takes up a lot of space.
It’s hard to understand why this tank was installed. To alleviate the pressure to balance imports?
It seems that the pump inlet should be located closer to the bottom of the tank; during long periods of shutdown, how is the liquid in the tank drained?
1. Don’t I see any valves at the pump’s inlet and outlet? 2. Is there no check valve at the pump’s outlet? 3. Is there no pressure gauge at the pump’s outlet? 4. Does the self-priming tank have a bottom drain? 5. Are there any requirements regarding the diameter of inlet and outlet pipes?
There should be a short circuit on the pump inlet pipe
I don’t think it’s necessary to screw anything in, after all, secondary grouting is required
I don’t see any connections on the tank for drawing negative pressure? If such negative pressure really exists, wouldn’t it be pointless to increase the suction vacuum level of the pump? I didn’t understand.