Advantages of using KaMOS RTJ Gasket or KaMOS® Intelligent Kammprofil Gasket. Kammprofil Gasket. Karmsund Maritime Offshore Supply AS (KaMOS®) are now introducing a new leak test method for flanges with raised face and flat face that. Advantages by using KaMOS RTJ Gasket or KaMOS® Intelligent Kammprofil Gasket (R/F & F/F). The flange is tested for leaks before the process pressure is .
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By joining you are opting in to receive e-mail. Promoting, selling, recruiting, coursework and thesis posting is forbidden. Can anyone give me any guidance on how many times you can safetly re-use an octagonal ring joint. At present I am getting conflicting information and i am opening out my options. Any gasket or seal when used ought to be replaced. The reasons are too numerous to mention. This also applies to bolts and nuts. I agree with Saxon about replacing the ring joint every time the flanges are separated; however, many folks incorrectly reuse the ring joint.
Provided that the stud bolts have not been over tightened kamks can gaskest used again.
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If stud bolts are stretched, they should be discarded. The problem is being able to determine if the bolts were over tightened in the past. Many years ago, I worked for a major oil field service company that would reuse the rings and hammer the stud nuts tight.
The stud bolts were never torqued, and as such, I have no idea if we were over tightening them. The same company did not change the packing on their coil tubing equipment as scheduled by contract.
Fortunately, I had the good sense to quite before their reckless practices created an oil spill or injury while I was in the field. Joint rings are made of softer material than the flanges and are designed to “deform” to make the seal. When you loosen the flange they do not “recover” and as such it is dangerous practice to re-use the ring in a joint since it will not be located in exactly the same orientation and “local” irregularities will cause leakage.
Always opt for a new ring and the sealing faces should be checked for damage.
Piping and Valve Engineering: KAMOS RTJ Gaskets
Thank’s to you all, based on your comments and my own preference i shall alway’s be using joints and bolting once. The KaMOS gaskets have sucessfully been used in several project world wide and references says it is very time, cost and safety efficient. What did you have in mind?? Everything is determined by the competency of the mechanic that gasket doing the flange makeup. There were more leaks on one system than I had witnessed in 42 gaskkets as an employee.
I have never seen a problem with the reuse of studs, B7 or B16, used in the above systems or any system where the stud has been protected from the enviroment. The studs used in the above system have been reused many times and some are the old Crane alloy studs, precursor to B7, over 40 years old. There were only 2 that had been stretched enough not roll on the die.
I conducted this survey 3 times over a 20 yr period.
The original B8’s had a much lower reuse factor for the above reason plus having more that had been stretched. DPT of studs and play of the nuts should be checked Ring joint sealing surface should be checked I m working in a petrochemical Hi Moffen, this is a late reply but we are using the Kamos to reduce the yaskets of gross leak testing.
It looks a very good cost effective solution as we could re test the joint each time using small amounts of nitrogen thus giving a safer testing enviroment. Our client now wishes to use these gaskets only once hence the reason for the census of opinion. Red Flag This Post Please let us know here why this post is inappropriate.
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