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Our facility has a synchronous sewage pumping unit manufactured by Shenyang Nai Corrosion There is frequent air leakage at the water injection port of the mixing device, which forces us to replace the gaskets (rubber gaskets) frequently. Has anyone encountered this problem? How should it be dealt with?
He used a flexible joint for the water pipe; you can buy a ball valve with internal threads and attach it there, or fabricate your own pipe cap. The best solution is to install a valve – that’s what I did: I simply connected a pipe to the industrial water pipe, and once the valve was opened, it was easy to fill it with water without any risk of leaks
To remove the other half of the socket joint, only the section of pipe that is welded to the tank should be left
Thanks. I talked to the masters, and they also think this approach is feasible.
I have two more questions for you. What kind of structure does a gas-liquid transfer tank have that prevents water from flowing back into the tank when water is poured into it? Also, one of our technicians suggested connecting a pipe with a valve to the pump’s outlet; this valve could be opened when air is introduced into the tank to maintain a vacuum state. Do you think this is necessary? Thank you
It’s not necessary; the gas-liquid transfer unit can remove the gas from inside the tank while it’s in operation. As long as there’s no leakage, there’s no problem with operation. In my previous workplace, I was in charge of over a dozen pumps made by this manufacturer, and this company used our factory as a testing site: lol. I’ve been dealing with them for 5 years. If the medium is wastewater, it’s recommended to replace the mechanical seal shaft sleeve and the mechanical seal gland with stainless steel, as carbon steel corrodes too quickly – I know this from experience. The pumps made by this manufacturer have decent technology, but the materials used are of average quality, and there are many shortcomings in terms of details. I’ve made many modifications to their pumps, and the prices are really not cheap