LPG pump
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At the moment the liquefied gas pump starts operating, the liquefied gas spreads around the interior of the pump chamber, after which normal operation is resumed. Could a double-end face seal be the cause of leakage at the first stage of sealing?
I didn’t understand. Could you describe it again?
It’s that at the moment the pump is started, a jet of liquefied gas is ejected from the pump body before it returns to normal operation
Are you using one with double sides? For double-ended surfaces, it is only said that frost forms on tanks with diameter 52; the situation you described does not occur. A single-end face can occur because, when transporting light hydrocarbons, the liquid film between the sealing surfaces is unstable; vaporization may take place during rotation, which can easily lead to leaks.
We have 53B plus 11; there’s definitely no oil leakage and there’s still pressure
How can 11+53B result in the situation you mentioned? Even if the main seal fails, it’s still the sealing fluid that enters the pump chamber. Even if there is insufficient pressure in 53B, it will only result in the medium entering the 53B system. This situation you mentioned won’t happen either. If it’s a leak from the end cover, shaft sleeve gasket, or O-ring, it should be a continuous leak
I understand what you mean, so I can’t figure out why this phenomenon is occurring right now
Can it be determined exactly which part it is?