Questions regarding the mechanical seal positioning block
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I would like to ask whether it is necessary to keep the positioning blocks for mechanical seals What role does he play? A set of modular mechanical seals comes with positioning blocks when it is supplied; these blocks need to be removed after the seals have been installed. How is the compression amount ensured in this case? Should I tighten the back cap after crushing the impeller? Similarly, when I disassemble the mechanical seal, does the positioning block need to be restored? Can’t I tighten the impeller after removing and reinstalling the positioning block?
It depends on the structure of the positioning mechanism; if it’s a shaft holder or a set screw that presses against the shaft, it’s better to use positioning blocks
It should be a modular mechanical seal that has positioning blocks. . This mechanical seal can be replaced quickly. . After the installation positioning is complete, the positioning blocks must be removed. . Restore the positioning block when removing it. . It can be removed quickly. . No positioning block. . When removed, the internal components of the mechanical seal will fall apart. They run everywhere. .
Ensure the compression level. . It’s the positioning block that determines the compression amount. . Install and fix the mechanical seal. . It is the compression amount at the correct installation position of the mechanical seal. . Loosen the positioning block and it can be used normally. .
But what about removing the mechanical seal? Is it necessary to restore the positioning block again?
If there is abnormal leakage in the seal, it is best to restore the positioning block when disassembling
Why is that? Could you explain in more detail?
The positioning block of the modular mechanical seal is used to prevent damage to the seal during transportation. Compression volume has nothing to do with it; it must be removed before the pump starts operating, otherwise it will rub against the shaft sleeve.