Question: Wedge mechanical seal orientation in vacuum

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SUMMARY

The discussion centers on the proper orientation of wedge mechanical seals in vacuum applications. Participants emphasize the importance of consulting the manufacturer for specific recommendations regarding seal orientation. The user who purchased the seals from Alibaba is advised to identify the brand and manufacturer to obtain accurate guidance. Without this information, determining the correct orientation remains uncertain.

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heiken01
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TL;DR
Hello all,

I will use two 59U-25 ca-sic-ptfe wedge mechanical seals, in a top mounted, low speed (14rpm) mixer. Solvent heated to 100 celsius, -900mbar vacuum applied. So, steam will be in contact with the seal. I was wondering, how is the right way to install these?

Back to back or tandem?

Thanks!
Mechanical seal config.JPG
 
Last edited:
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Welcome, @heiken01 !

What the manufacturer of the seals recommend?
 
Lnewqban said:
Welcome, @heiken01 !

What the manufacturer of the seals recommend?
Hi! Purchased on Alibaba. They dont know either
 
heiken01 said:
Hi! Purchased on Alibaba. They dont know either
I believe Alibaba is just a reseller, like Amazon or eBay. What is the brand of the seals? Who is the manufacturer? That is who you need to ask.
 
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