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Detection of Pinholes in Plate Heat Exchanger System


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#1 agwanda

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Posted 30 November 2011 - 01:12 PM

Dear All,

I would like to find out from those with an experience in dealing with Plate Heat Exchangers on how to detect pinholes in the system. Pinholes are a possible reason for cross contamination between raw product and processed products during heat treatment. Any ideas??

Agwanda


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The sky is the limit..........!

#2 Simon

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Posted 09 December 2011 - 08:01 PM

Any ideas for Agwanda?


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#3 Dairymaid

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Posted 10 December 2011 - 08:25 AM

Hi Agwanda
you will nedd to pressure test your plate pack , this us susually done by a speclist company in th UK. As this is a ctitical peice of kit we get ours tetsed every 6 months. Fluid hamndling srvices or the supplier of the pate pack should be able to help

hooe this answers your query
Dairymaid :thumbup:


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#4 Dairymaid

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Posted 10 December 2011 - 08:42 AM

:whistle: :thumbdown: :oops: dairymaid should not press post without spellchecking her typos

Hi Agwanda
you will need to pressure test your plate pack , this is usually done by a specalist company in the UK. As this is a critical piece of kit we get ours tested every 6 months. Fluid handling services or the supplier of the plate pack should be able to help.

hope this answers your query
Dairymaid :thumbup:
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#5 cazyncymru

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Posted 10 December 2011 - 04:23 PM

:whistle: :thumbdown: :oops: dairymaid should not press post without spellchecking her typos

Hi Agwanda
you will need to pressure test your plate pack , this is usually done by a specalist company in the UK. As this is a critical piece of kit we get ours tested every 6 months. Fluid handling services or the supplier of the plate pack should be able to help.

hope this answers your query
Dairymaid :thumbup:



LOLOL Dairymaid!!

You should also be doing a phosphatase test which will help with monitoring pasteurisation. If you are using Flurophos you may see your readings creeping up.

Pressure testing is usually carried out by the manufacturer of your plate pack. If you need some info on suppliers, there are a few of us here who can recommend a company

Caz x
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#6 gfdoucette07

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Posted 15 July 2015 - 04:08 PM

I was looking for maint work tickets and stumbled upon this, I know this an old thread but what we used to do was a bit simpler, even possibly crude.  When it was down for sanitation inspection or other task (at least 2x a year), we constructed a box with 4ft lightbulbs inside, then laided the plates over the box (1 at a time) in a dark room/office and looked for light shining through.

 

G


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#7 pcarder

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Posted 27 June 2016 - 07:03 PM

You can buy detection liquid that you paint onto the plates.

One side is painted with a red indicator and the other side is painted with a white developer.

If there are any pinholes, they will show up as red dots on the white side of the plate.

This requires removing the plates from the rack, or in my case anyway.


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