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Which screw should be tightened first on a mechanical seal?

2017-08-12View Original

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Should I tighten screw 1 first or screw 2 first? Is there a difference between Prioritize 1 and Prioritize 2? What are the impacts?
Reply #22017-08-12
Is this a bellows seal? Is this 1 set screw used to fix the moving ring? Just like DBM and DTM in Dandong. If it is used to fix the moving ring, then there’s no need to worry about the 1 set screw.
Reply #32017-08-12
First, use one to position the clamp on the shaft, and then use two to fix the clamp in place on the shaft.
Reply #42017-08-12
The compression amount of the container seal is fixed. 1 is used to fix the moving ring; after replacing the ring, just tighten 1, then lock it in place. After pressing the seal against the shaft, tighten 2, and then release the locking clip
Reply #52017-08-13
The mechanical seal is installed on the shaft; once it is in place, bolt No. 1 should be tightened first. Because bolt number 1 is used to tighten the sealing ring on the mechanical seal ; Next, tighten bolt No. 2 again. Bolt No. 2 is used to secure the rotating ring of the mechanical seal so that it rotates together with the shaft.
Reply #62017-08-13
It’s not really a matter of which one comes first and which one later. Check if there are any relevant drawings; it seems that 1 is used to determine the position of the rotating ring during the transportation and installation of the mechanical seal, and it’s mainly used to secure the eccentric gasket. During operation, 1 should be removed.
Reply #72017-08-13
1It doesn’t seem to be a locking eccentric washer, right? It’s to fix the moving ring, right? Before removing the machine seal, twist the eccentric washer into the groove of the seal shaft sleeve, and then tighten the bolt that passes through the eccentric washer.
Reply #82017-08-13
1It doesn’t seem to be a locking eccentric washer, right? It’s to fix the moving ring, right? Before removing the machine seal, twist the eccentric washer into the groove of the seal shaft sleeve, and then tighten the bolt that passes through the eccentric washer.
Reply #92017-08-13
First, tighten one bolt; this bolt is used to connect the shaft sleeve to the moving ring. The second bolt is used to fix the shaft sleeve to the shaft. This mechanical seal comes with a locking plate, so the compression amount of the seal is fixed
Reply #102017-08-13
The last edit to this post was made by wang*aoo9 on 2017-8-13 at 16:31. I think we should tighten 2 first, fix the moving ring fixing plate to the shaft, and then adjust 1

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