Re: Ammonia CA Store Complex
Hi.
What Oil was being used and what Oil is now being used?
Sounds like Waxing to me!
Alternatively were suction socks or strainers used in the newly installed pipework?
Just some thoughts
Grizzly
Re: Ammonia CA Store Complex
It could be the oïl or grease used to protect the new pipes during storage. waxed by the ammonia and staying in your EVM
Quote:
Originally Posted by
Grizzly
Hi.
What Oil was being used and what Oil is now being used?
Sounds like Waxing to me!
Alternatively were suction socks or strainers used in the newly installed pipework?
Just some thoughts
Grizzly
Re: Ammonia CA Store Complex
A.King,
As stated above as well as with extension, was the equipment & pipe new, or secondhand from somewhere else?
Can you also explain how you tested for water to avoid overlooking something basic.
Alo when pressure testing pipework, what was used, air, nitrogen?
Re: Ammonia CA Store Complex
hi
as you know we have dead point some time in our piping
when you add new system mostly it effict to our dead point and moved all waxes and oils and also dirty pieces
Re: Ammonia CA Store Complex
Hi Gents
Thanks for the replies.
The oil that has been in use is an ISO68, this has not changed and is still in use. There are also mulitiple Strainers/ socks in the Liquid and suction lines.
The pipework and equipment was all new. Nitrogen was used for the pressure test.
To test for water we installed a de- watering unit and left this running for roughly two weeks. I also drained some -10 liquid ammonia into a glass beaker and let the ammonia boil off, once this had boiled off there was no water remaining.
What puzzles me is that this is a common system and the EVM on the old Danfoss PM valves are not affected, the only difference between the PM and ICS valve is that the EVM is in a horizontal position instead of a vertical position.
If it is waxing from the pipework is there an efficient way to remove it.