Sealing Brine at 80¦C (176¦F) 1

[Milkboy]

Hello there Group

Im looking for advice, suggestions, URLs on material of contruction selection for a pump and mechanical seal which will see Brine (25% w/w) at 80°C (176°F)

I have a rule of thumb in my head that says >30°C (86°F) on seawater then Titanium is used. However, I dont know where I got this 'rule' from so I am looking at this from scratch.

Also, at temperatures such as this for Brine, would there need to be consideration to sacrificial anodes...somehow?



Some references and URLs where I could improve my understanding would be great



Thanks in advance

M

-
Milkboy

 

[flexibox]

you should get away with Hastelloy C for this. check the chloride contents.

 

[kevindurette]

For the seal material, I suggest EPDM. The Parker O-ring catalog will probably provide justification for this.

 

[tesser]

I have not used this site for a while (I have retired) but try

http://www.nickelinstitute.org

Under 'Nickel and its Uses' go to technical literature and type 'brine' in the search.

Most of the literature is available as free pdf files. You may have to register but it is free or used to be

 

[MikeHalloran]

One rule of thumb I sort of remember is that seawater precipitates salt above 140F.
I don't know how you mitigate that.



Mike Halloran
Pembroke Pines, FL, USA