Spring rotation direction of single-spring mechanical seal
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I read on the forum; some people said the spring should have the same rotation direction as the shaft, while others said the opposite. I think it should be the same direction. Which one is correct? Please tell me the reasons!
It’s really a problem; I hadn’t noticed it before. It seems to have been used with both sides. There’s no problem either. Someone with more experience, please share your thoughts.
It should be in the opposite direction; the tighter it gets when turned in that direction. The mechanical seal withstands stress well. Conversely, the loose seal is not good.
The rotation direction of the large spring should be opposite to that of the shaft; if they are the same, the spring will be compressed as the pump shaft rotates, resulting in a reduced compression amount or even no compression of the mechanical seal, which in turn causes leakage from the mechanical seal.
I noticed this problem right from the first time I installed the seal; it should be the opposite.
I think it should be the opposite way; if it’s the opposite way, it will get tighter and tighter