Regulations on pump leakage rate
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I often use oil transfer pumps. Version 2 of API682, published in 2002, did not specify any requirements regarding leakage rates for such pumps. The latest version of API682 is Version 3 from 2004; I was wondering if anyone knows whether there are any provisions regarding leakage rates in that version?
There are separate regulations regarding the leakage rate of seals. China’s standards specify this value based on the shaft diameter: for 80mm shafts, it is 8 ml/h
Thank you very much to the friend upstairs. I wonder if there are such requirements in the API standard framework. Are the provisions of domestic standards based on that specification? Please specify the standard number and relevant clauses. Thank you here
Equipment management systems in various companies should include regulations regarding leakage rates!
Everything needs to be examined thoroughly; we need to find the most fundamental information, which for us means the standard specifications
Standard JB/T4127.1-1999 \"Technical Requirements for Mechanical Seals\" specifies that, when the sealing medium is a liquid, the average leakage rate during the operation test of mechanical seals should be no more than 3 ml/h, provided that the outer diameter of the shaft (or shaft sleeve) is 50 mm or less； When the outer diameter of the shaft (or sleeve) is greater than 50 mm, the leakage rate shall not exceed 5 ml/h.
Thank you for the detailed reply from the 6th floor. Do any of the sea friends know if there are any requirements regarding this in the API standards?
JB/T4127.1-1999 \"Technical Requirements for Mechanical Seals\" – This standard specifies the technical requirements, performance standards, testing procedures, acceptance criteria, labeling, and packaging related to the quality of lightweight mechanical seal products. This standard applies to mechanical seals for centrifugal pumps and other similar rotary machinery. Its operating parameters are generally as follows: the operating pressure ranges from 0 to 1.6 MPa (referring to the actual pressure within the sealing chamber) ； Operating temperature: –20~80°C (referring to the actual temperature inside the sealed chamber) ； The outer diameter of the shaft (or sleeve) is 10~120 mm ； Rotational speed not exceeding 3000 r/min ； The media include clean water, oils, and generally corrosive liquids. But can centrifugal pumps with a working pressure higher than 1.6 MPa still meet this standard? So what standards should be followed?
It refers to the leakage rate, not the amount of leakage. I don’t understand