May I explain the problems we encounter with these ball valves supplied by Fluitek Italy. Generally the 16” valves which have steel seals pass the gas test, it is the 14” and below with Graphite seals that cause the problem.
Our test method is to use “blind flanges” which will negate any “body distortion” valves can suffer when in a clamped test bed. I have in fact ordered two machines to test “split or floating trunnion” ball valves similar to yours, these machines are specially designed to avoid any chance of body distortion.
Quite often we have to assemble and dis-assemble the 14” valves two or three times to get the graphite seals so that they are bubble tight and also not locking the valve up making it impossible to operate. Without our computerized cutting machines this task would be very difficult. This process of shimming is very time consuming as your “witness” staff can attest to the same.
Had we to communicate with Fluitek I fear we would not have finished this job in question, they are very bad communicators unless it is something they want.
There seals are made by an Italian gasket manufacture similar to Masterpac but judging by their SWG’s quite poor quality. It takes them weeks to procure the simplest components which we have experienced first-hand. Had I charged for all the seals and shims we made for this job, really I should be looking for extras.
It was Fluitek that first brought their valves to Masterpac after having had them at another place of supposed repair, so they are (were) happy with our establishment and work ethic.
The above is just a brief outline of the work we have to do to pass your QC and EP inspectors, they demand 100%.
I will however, if it will help keep you from insolvency as was suggested earlier offer you another 5% discount on this purchase order which is nearly at break even for me and the very best I can do.