@Adirondackweldor,
I have a similar system as you described and agree it may be caused by a dissolved gas. I do not know what you mean by "steady water use".
Anyway, the value less than 1 uS/cm can be reached, in our systems the conductivity is about 0.5 uS, 0.4 or 0.7-0.8 uS without any...
Hello,
could you answer me the question do i need make a passivation of new 316s/s pipeline for compressed air ?
The thing is the new pipeline is for clean compressed air, after the 0.2um filter. The air will contact with a product directly.
I have read the A380 by ASTM and know they...
@StewPad
Demi water means purified water without any additives. So I can not add any substance to purified water after EDI, inhibitors neighter.
Anyway, what influence do amines film have on bacterial growth ?
Regards.
Hi cobalt1983, thank you for your answer.
I can not add any filter in PW loop, after EDI there sould not be any additional filters.
Anyway, I will check the concentrations of chloride. The main problem in PW is not the erosion. I was just courious if there should be made re-passivation after...
Thank You for response.
You said "chemically depassivated (acid)", as I know, the demi water is in acid pH area (in my loop about 6.5)Anyway isn't an acid a passivated medium ?
One more thing: Have you got some paper about this flow velocities of 20 m/s not breaking of the passive layer ...
Hello,
I have a question about passive layer in the pipeline of 316L ss ? I have a demi water loop (water velocity is over 1.1 m/s, conductivity is about 0.5 uS, temp. about 20 deg C). As I know the thickness of passive layer is about couple particles. Is that possible the water after some time...
Hello,
I have checked the conductivity of the loop water in two systems after/before thermal sanitisation because of decreasing gas solubility in higher temperature. In fact, the conductivity decreases just after thermal conductivity, but after two days is as before. So you may be right...
Hello,
As in title, I would like to ask about the reason of higher conductivity of pure water in loop. After EDI device the conductivity is about 0.1 uS/cm, but in loop there is about 0.6uS/cm. The max value is 1.3 uS/cm in temp 25C, so there is no problem. In the other installation we have the...
