Mechanical seal spring compression allowance
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The spring of the modular mechanical seal is compressed; if this situation persists for a long time, the positioning block may be lost. How can the degree of spring compression be determined?
The modular mechanical seal reassembles the positioning block, and the spring automatically reaches the designed compression level
Haha, it means just buy a positioning block and install it
It’s such a simple thing; just do it by yourself. Either a tool or a file will do
A positioning block, as the name implies, is used to determine the working position of the spring. The thickness of the positioning block is the compression amount of the spring. So it’s best not to change the thickness of the positioning block arbitrarily. Some of the replies above suggested just choosing any number of cars, but how do you determine the number once there are enough cars? It’s best to consult the sealing manufacturer; once the thickness of the positioning block is determined, you can either make it yourself or have the manufacturer ship it. It won’t cost much anyway, and it might even be free.
It’s very simple: there are grooves for the positioning blocks on the shaft sleeve, and one just needs to make a positioning block that matches the width of those grooves and install it.
Generally, you just need to relax it by 1.5 mm after pressing it to death