What may happen?

Posted in: , on 20. Jun. 2006 - 09:41

If I use a "T" type 3 way ball valve as a diverter valve at the end of vacuum conveying line what may happen?

Possible to block?

The following is conveying data:

Distance: 50m

Vertical: 5m

Bend: 3

Diam: 2"

Capacity: 1.5T/h

Material Handled: Carbon black, CoLiO3

Shenjie Tel:+86(0)20 83553890,83550361 Fax: +86(0)20 83542314 [email]sj@chinabulk.com[/email] [url=http://www.chinabulk.com]Sino-Auto Technology[/url]

Re: What May Happen?

Posted on 20. Jun. 2006 - 10:39

It all depends.

John Gateley johngateley@hotmail.com www.the-credible-bulk.com

RPD - Invista (UK) Ltd., U.K.
(not verified)

Re: What May Happen?

Posted on 22. Jun. 2006 - 09:58

I don't have a any experience with carbon black but with most materials there would be sufficient turbulence to scour the walls and prevent buidup. If there is any evidence that the material builds up on the walls of the pipe and then breaks off or travels along the pipe in slugs, then a sharp 90 degree bend inside a ball valve would not be good news.

Don't forget that the pressure drop you will get from the sharp 90 degree bend will be significantly higher than fropm a more conventional method of diversion.

Re: What May Happen?

Posted on 24. Jun. 2006 - 10:52

Unless I'm missing the point here, a vacuum system is totally reliant on presure increase. If you separate the flow from the partial vacuum source then there is no longer a pressure differential. There might be 2 vacuum sources & if you can afford that you can afford a proper valve.

John Gateley johngateley@hotmail.com www.the-credible-bulk.com