Anti-corrosion treatment issues for valves and flanges on-site
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This post was last edited by ds66616 on 2017-7-24 08:48. A professional anti-corrosion team was hired to carry out anti-corrosion treatment on the pipes, pipe racks, platforms, etc. at the site. But for the anti-corrosion painting of the valves and flanges on the pipes, is it sufficient to handle them in the way shown in the diagram? Are the connection bolts just brushed like that? Let’s discuss how to prevent corrosion of valves, flanges, and bolts on pipelines No standards either? Should it be agreed upon by both parties in advance?
Our requirement is mechanical rust removal, two bottoms and two sides. Looking at the picture, this job was done poorly! :lol
There was a case in which an outsourcing company applied oil to the sliding pins of moving equipment during anti-corrosion work; insufficient expansion led to damage to the unit’s casing. Equipment managers need to pay special attention to this
Yes, it’s very rough. This also indirectly reflects a low level of management: L:L:L. What are the technical terms in the agreement between the owner and the contractor, aside from those related to safety? Is the construction plan detailed enough?
We have had similar situations happen as well. This indicates insufficient technical briefings and inadequate on-site management. But usually, someone is just assigned to take care of it temporarily, and there isn’t always someone on duty, so it’s still due to insufficient preparation in advance
For bolt corrosion protection, painting is not an option; applying grease can be used instead.
I originally thought that professional anti-corrosion teams would be more skilled, but I was wrong. One still has to be capable of reviewing the other party’s construction plan
This anti-corrosion team is really professional; it’s a bit intimidating.
If it’s painted like this, how can it be disassembled?
It can be clearly stated in the contract that the paint coating provides corrosion protection for 3 years, and half of the payment is due upon completion of the work. Pay the remaining half of the balance after 3 years. :lol