What is the allowable amount of water dripping from the mechanical seal of a centrifugal pump?
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What is the allowable amount of water dripping from the mechanical seal of a centrifugal pump? In other words, is the mechanical seal allowed to drip water? How many drops per minute (second)? Which standard is it based on?
The allowed leakage volume of API682 is 5.6g/h (2 drops/min)
This depends on the sealing form. If it is a mechanical seal, it should be "zero tolerance";P Some flexible packing seals also require a small amount of water to flow out, which is said to cool the packing: lol
This post was last published by Piaotiao_WEWJ edited Article 7.1 of "GB/T33509-2017 General Specifications for Mechanical Seals" on 2018-12-26 16:39, or Article 5.1 of "JB/T4127-2013 Mechanical Seals".
Everyone wants mechanical seals to be leak-free, but there are more or less leaks, especially now that many companies pay attention to environmental protection, and there are some toxic, harmful, flammable and explosive media. Generally, it is acceptable to observe one drop per 5 seconds at the machine seal. The standard leakage amount is relatively broad. It is better for the user to determine what kind of leakage amount is allowed based on the specific conditions on site. Generally, there is a reason for leakage. Find the cause and repair or replace it. If you want the medium to be free of dripping, leaking, running, and popping, it is more important to choose a non-leakage pump, such as a magnetic pump, a canned pump, or a reasonable flushing plan.
Just two or three drops. Normally, you can't see it. Normally, it evaporates and evaporates directly. If it drips straight down, there must be something wrong.
In principle, mechanical seals are not allowed to leak. old iron
Can you tell me the allowable dripping range of flexible packing? Are there any regulations?
If it is flexible, as long as the shaft does not heat up, the less leakage the better.