The we live in focuses primarily on a single
thing. What is the cheapest and easiest thing that I can use? It isn't always
the case; and I am certainly being a bit unfair by saying that - but it
is something I've seen again and again and again in the last
13 years (my time in the pipeline world). For many decision makers;
cost is all that matters: "buy whatever is cheapest...it's all the
same."
So, when I do get the comment "I want whatever
the best coating is - this pipeline is too valuable to scrimp on the
field joint coatings" I tend to sit up and take notice. Here is a
person who cares about the future of this pipeline. Here is a person
who is committed to doing their best job possible; even if they are no
longer with this company through the life of the line. Here is a person
with integrity. Here is a person who cares about the long-term...not
just about moving on to the next project or claiming that next
promotion.
In cases like this, where the request is for the "best" AND where we don't have an issue with elevated operating temperatures; the answer is clear. The best possible field joint coating is ROCS.
What you see here is a picture of the ROCS
shrink sleeve. The pattern you see is the fiber mesh (which is woven
between two layers of HDPE, heat shrinkable backing. The other side of
this sleeve is a high shear adhesive. All of this is installed on
Covalence's S1301M liquid epoxy which chemically bonds with the adhesive
of the ROCS shrink sleeve in order to form a truly cohesive field joint
coating.
Since the ROCS shrink sleeve system utilizes both a heat shrinkable sleeve and a liquid epoxy bonding agent; it literally offers the best of both worlds. The liquid epoxy gives the coating system superior cathodic disbondment properties and sheer resistance. The fiber reinforced shrink sleeve gives the coating system excellent electrical resistivity properties; superior abrasion resistance and fantastic penetration resistance.
Like all things in life; you get what you pay for. The ROCS field joint coating system is expensive on the front end, during construction. But the truth of the matter is that leaks, repairs and corrosion problems are incredibly expensive. Taking a line out of service can cost almost a million dollars per day (as seen here). There must be a point where 'cost' is not the number one factor when selecting a field joint coating; are we there yet?
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| All Field Joint Coatings AREN'T Created Equally |
In cases like this, where the request is for the "best" AND where we don't have an issue with elevated operating temperatures; the answer is clear. The best possible field joint coating is ROCS.
 |
| The ROCS heat shrink sleeve system is absolutely unmatched in the coatings world. |
Since the ROCS shrink sleeve system utilizes both a heat shrinkable sleeve and a liquid epoxy bonding agent; it literally offers the best of both worlds. The liquid epoxy gives the coating system superior cathodic disbondment properties and sheer resistance. The fiber reinforced shrink sleeve gives the coating system excellent electrical resistivity properties; superior abrasion resistance and fantastic penetration resistance.
Like all things in life; you get what you pay for. The ROCS field joint coating system is expensive on the front end, during construction. But the truth of the matter is that leaks, repairs and corrosion problems are incredibly expensive. Taking a line out of service can cost almost a million dollars per day (as seen here). There must be a point where 'cost' is not the number one factor when selecting a field joint coating; are we there yet?
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