Isolating kit instead of isolating joint in ICCP
Isolating kit instead of isolating joint in ICCP
(OP)
Hi all,
For a buried pipeline with impressed current CP system, I am wondering if it's possible to use Isolating kit on above ground flange instead of monoblock isolating joint.
thanks in advance for your support.
bo7winner
For a buried pipeline with impressed current CP system, I am wondering if it's possible to use Isolating kit on above ground flange instead of monoblock isolating joint.
thanks in advance for your support.
bo7winner





RE: Isolating kit instead of isolating joint in ICCP
Of course it is. Whether it's the best solution is a different question.
What's the fluid? , pressure, temp?
Remember - More details = better answers
Also: If you get a response it's polite to respond to it.
RE: Isolating kit instead of isolating joint in ICCP
thx for your response.
fluid: gas;
Design Pressure (barg):92
Receiving Pressure (barg) :55-65
Design Temperature (˚C) :-10 / 85
Operating Temperature (˚C):20-50
RE: Isolating kit instead of isolating joint in ICCP
However the long term effectiveness and durability of insulating flanges is generally poor compared to a mono block isolating joint Fitting them without breaking the insulating components and getting a bubble tight seal is difficult and some spare components are recommended.
So if you want your ICCP system to fail after 5 years because the insulating flange is shorting then go ahead. Then no one wants to shut the pipeline down and blow it down to replace it, so you can lose CP effectiveness for a long time.
Why don't you want to fit an IJ??
I would only really look at flanges if I had a conductive fluid, but dry gas I would go for an IJ every time.
Remember - More details = better answers
Also: If you get a response it's polite to respond to it.
RE: Isolating kit instead of isolating joint in ICCP
Thanks
RE: Isolating kit instead of isolating joint in ICCP
I have a distributed impressed current cathodic protection system for underground (ductile iron) fire network for power plant, the terminal points with fire buildings networks haven't insulation kits between the U/G and A/G networks. I asked the cathodic supplier for this concern and he responded that the insulation kits shall not be needed in such system (distributed impressed system), I don' t have the reference for his claim and the system needs to be handed over to the client.
Thanks.
RE: Isolating kit instead of isolating joint in ICCP
please don't hijack someone elses post - start a new one yourself and you will get better responses.
I don't know what a "distributed impressed current system" is compared to an impressed current system or indeed why a DI network needs one or how you electrically connect the DI pipes to each other (many systems are push fit). When you make a new post, please add as many details as you can, but it doesn't sound correct to me.
Remember - More details = better answers
Also: If you get a response it's polite to respond to it.
RE: Isolating kit instead of isolating joint in ICCP
Remember - More details = better answers
Also: If you get a response it's polite to respond to it.
RE: Isolating kit instead of isolating joint in ICCP
RE: Isolating kit instead of isolating joint in ICCP