The hydrophore does not turn off, it works all the time at the same pressure

Question

Hello. He writes with the following problem at the hydrophore. Everything was fine and fine until I had no tap water in the morning. I went to the hydrophore and noticed that it was turned off, I turned it on and it started to pump, it inflated to the set value of 5 bar and here's a problem...

kryststgpom · Answer

Have you checked the pressure switch?

energy1993a · Answer

And what is that?

Added after 8 [minutes]:

and the pressure switch, what was I supposed to check, I lowered the pressure only to 4.5 bar because I thought that this pressure would turn off, but the same goes to the set norm and it goes all the time and the pressure does not increase and it goes all the time. I don't know, maybe there is something wrong with the electrician, something burned out I don't know I don't know myself very much, that's why I am writing to you

mczapski · Answer

Does the hydrophore have a name? Has he been working since yesterday or a hundred years? You somehow made the inclusion and nothing is associated? And finally, what is this constant pressure and what was it like before? You could bet on pump wear or a leak in the pressure switch.

energy1993a · Answer

The hydrophore consists of a 200l tank. A pump is connected to this and is driven by an electric motor. I don't know what power, but it's probably irrelevant. The whole set is already (I don't know) several dozen years old. In May, the pressure switch was just replaced. Constant pressure was set to 5 bar. After the pressure was released, nothing happened. Only increasing the pressure gave the described results. The switch went off and works normally so far. I don't know, it's all weird at all. We'll see what happens next.

stanislaw1954 · Answer

Why do you need such high pressure in the system?

energy1993a · Answer

I don't know, it was set up and that's it. Okay, listen, I just got back from work and I was gone for 10 hours. My brother says that the hydrophore turned on and off by itself and everything is fine. I don't know it's all strange. And with regard to this pressure, there is probably nothing wrong with the fact that the maximum pressure is so high, it may be 6 atm. I pumped up so high that the hydrophore would run for a long time and rarely. So that it does not come on often. Well, unless it can be achieved in a different way with less pressure, please give me some suggestions

stanislaw1954 · Answer

With such a high pressure, all devices suffer, especially boilers, but also water batteries, because they have to be turned harder. As a result, the seals in the batteries are faster to replace. I have not mentioned the most important one -> the pump, the older it is, especially those in which the rotors rub against the housing, rubbing loses the compression force and with time it will not reach the value you expect. With a 200-liter tank, there are no great revelations when it comes to water intake. This is somewhere between 3 and 4 buckets, with a setting of 1.5-4 bar. By raising the upper pressure to 5 bar you can achieve, I don't know 0.5-1 bucket more?

750kV · Answer

Hello. Dude, 6 atmospheres is way too much, especially for such an old pump and tank. 3-3.5 atmospheres is more than enough. In order for the pressure pump to turn on less often and for longer periods, increase the air cushion in the tank by pre-inflating the air under pressure and make sure not to take water in the event of a power cut. Otherwise, air from the pillow will start to flow through the unscrewed tap and the problem will repeat itself.

arcziio · Answer

Let me step on it because I have the same symptoms. JET 110S about two years old. It reaches 2.8 bar and the pointer stays there (this is how it is set) - the hydrophore works until the engine heats up. Pressure switch? How to check it?

retrofood · Answer

Pump and its seals.

arcziio · Answer

Seems tight, nothing sweats. Water is pulling normally, when the tank is full (and reaching these 2.8 bar) I turn it off. And so the fun continues.

retrofood · Answer

And it won't sweat, because it's internal seals, actually distances, whatever. In my opinion, the pump to be regenerated should be rotors rolled, or possibly new and adjusted. A good turner will do this in an hour. But this is my version, I know from experience that it is 90 - 95% of cases. This 5% may be due to other reasons.

arcziio · Answer

Thanks, you cheered me up I was hoping for something simpler. Tomorrow I am looking for a specialist.

retrofood · Answer

Once upon a time, I had a turner job twice on the same day! The pump pulled a pinch of sand, and that was enough. It produced 1.5 atmospheres, and that was all it could afford, although half an hour earlier it had pumped up to 6 atm during the rehearsals.
Impeller pumps are very sensitive to contamination in water, and the gradual decrease of the maximum pressure obtained proves that the minimum distance between the side wall of the stage casing and the side surface of the impeller blade is not maintained, and that it is damaged by friction.

Grzegorz Siemienowicz · Answer

The least resistant to solid contamination are peripheral pumps, such as for example WZ-750 - even a small amount of impurities can effectively destroy the pump.
Centrifugal pumps of the type are much more resistant SM3.02 Hydro-Vacuum Grudziadz. In the instructions for these pumps, the manufacturer allows a small amount of impurities with a diameter of 0.5 mm.
However, the pump that surprised me with its resistance to contamination was the pump MultiHWA 3000 INOX . When I opened it (working - it gave only little pressure and efficiency after 8 years of use) it was 1/3 filled with sand inside.

After flushing and replacing the seals, it returned to the owner and continues to serve him.

arcziio · Answer

However, it turned out to be a pressure sensor.

retrofood · Answer

By myself? Nobody changed anything?

arcziio · Answer

Believe that no one was messing around. I had a collapsed hydrophore room all the way to the ceiling. The hydrophore was not used much, but the last two months it has been more intensive. Not only that, your suspicions are correct, because the plumber only adjusted it. X-archive normally

mczapski · Answer

So how is it with your observations?

arcziio · Answer

It was exactly as I wrote earlier. It spiked at 1.2-1.4 and went down to 2.8 The pointer was vibrating in this area and the pressure booster was working and working, it kept warm until I turned it off manually.

The hydrophore does not turn off, it works all the time at the same pressure

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