Mechanical seal
Thread Content
Due to incomplete flushing of the pipes, the medium becomes contaminated. Could this be the cause of damage to the mechanical seal? Or could the increase in temperature caused by the supply of 1.0 bar of steam lead to expansion and cracking of the rotating and stationary rings, thereby causing damage? Thank you
How can the sealing surface still be damaged when the moving ring and the stationary ring are in close contact?
Incomplete pipeline flushing, especially dirty seal flushing water or insufficient flushing volume, are the main causes of mechanical seal damage. If the mechanical seal friction pair is designed according to the given process parameters, it will not cause damage to the mechanical seal.
Do you mean that the clamping force of the friction pair is insufficient, allowing dirty substances to get between the friction surfaces and causing damage?
It’s unclear what medium the pump transports
A liquid film is formed between the stationary and rotating rings, and the liquid in this film comes from the flushing water! Judging by common sense, steam is used to keep the medium warm and prevent crystallization; without steam, it might fail even faster! To accurately determine the cause, it is necessary to disassemble and examine the manner and location of damage to the mechanical seal! It would be best to provide pictures of the damaged seal, some details about the pump, and information on the properties of the material! Let’s analyze and discuss it together! Prevent the problem from happening again!
Dirt isn’t a major issue; the mechanical seal cannot withstand pressures exceeding the design specifications