What are the reasons why the pressure in flushing scheme 32 is higher than that in 53B?
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In flushing scheme 32 53, B32 has a pressure of 1 kilogram higher than 53B
Has the pressure at 32 increased? The general invariance of 53B
32 refers to the introduction of external flushing oil for sealing purposes, with a pressure that is slightly higher than that in the sealing chamber by 0.5 to 1 kilogram. Adjust according to the pump inlet pressure.
I’m hearing this statement for the first time: 1. Is it required by the operation manual? If the operation manual requires this, please ask the manufacturer of the manual for the reason. I believe this is an incorrect statement, as the sealing of 53B is a \"internal leakage\" type of sealing, and the pressure in 53B is higher than that in 32 (the pressure in the primary sealing chamber). Of course, the pressure at 32 is higher than the pressure in the sealed chamber. Moreover, the clearance between the pump’s throat bushing and the pump shaft should be small. 2. If the above situation occurs during actual use, please check whether the seal on the non-process side is leaking. Is the alarm pressure for 53B set too low?
P32 is 0.5-1 par higher than the sealed chamber； P53A is 1.4-4.1 par higher than the sealed chamber ； P53B is 2-3 par higher than the seal chamber pressure.