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Good Morning to all, i have a question. In a terminal where i'm working, we would to do the thickness control of the External FLoating Roof of an hold tank. We don't have drawings about that tank. Does API provide acceptability percentages for the thickness test? Thank you very much in advance...

Does the cathodic protection make sense for a concrete slab foundation? For me, no. What do you think? Thanks Regards

Thank you to all for your replies, and, as you said, we think that is a problem of improper welder procedure.. cleaning weld seam, temperature maintenance during welding,moisture elimination etc etc.. I will inform you.. Thanks

Good afternoon to all, i have a question for you. During maintanace operations of a tank, it's necessary to open a temporary door in the 1° shell course. After 2 months that door was welded and regularly checked with RT and MT with with no defect, some toe cold cracking appeared in the...

Atmospheric Tank, fixed cone roof with column, thick 5mm.

Good evening sir, if the construction company fails in the opening of a nozzle in a roof so they must close the hole, what's the procedure to follow? Re-Welding, 100 % RX.....ETC ETC What does API recommend in a similar situation? regards

API650, atmospheric and cylindrical shape 390m3..it's a small tank. The dent is about 300x300,on the 2°shell course

Good Evening sirs, what are the acceptance criteria for a tank vent? During the construction, perhaps for a incorrect procedure welding of a stair support, we have suffered this distorsion. thanks regards

Thank You very Much CarlB....i was right about the incorrect procedure. I'm working in tanks constuction but i'm a civil engineer so i have some knowledge about it. regards

Ok....i was sure that i had not understood. Certainly for a tank of 500m3 it seems to me overly cautious. thanks

Hi guys..help me To understand chapter 7.3.6.5.API 650 First of all i think that this is a duty of The purchaser. Please confirm me. Then, is 460mm/h The filling rate???Can You explain me The meaning of this value? I think It' s To much low But i m sure i m Not understanding. Thanks

First of all thank you for your answers but beyond the usefulness of using this product i was curious to know if the application procedure was correct which is to pour the emulsion directly on the sand bed....for me it's strange because the result was a black colored sand not a bed of asphalt as...

Good Evening everyone i have a technical question about the foundation. Where i'm working the client is using a kind of bitumen emulsion on the sand as final layer. In the civil drawing i read "50 asphaltic sand" as final layer. From my point of view the procedure of the client is not correct...

Good Evening to all i'd like to have a clarification. Does API650 provide that for the welding annular-shell you have to start from the inside of the tank and not from the external? thank you regards

Ok...so we have only a minimum widht.. thank you. regards

Good Afternoon srs does API 650 provide for the shell course a minimun height or maximum for the shell courses?? for example can we design a tank of 8m in height with 4 courses of 2m of height or with 3 courses of 2.6 m?Obviously the calculation must be verified...Ok then we can talk of good...

Dear all, i'm writing to have some technical advice about a situation that we have in our site. We are building some pipelines for liquid gas but we have a problem with some joints infact it's impossible to weld with the purging because we don't have any solutions to pull out the plugs. The...

Good evening, i'm a Project Manager of a bunker terminal in construction in Panama. I'm looking for holes plates in stainless steel. Here the specifications: Material: Aisi 304 Thickness: 8 mm Holes diameter:6 mm Distance holes-holes: 8/9 mm I need about 3 plates of 48"x96"...but it is not...

Good evening to all. I have some problem with the installation of primavera P6. This is the message of error " Bad public user name or password. Database Server Error: SQL Network Interfaces: Error Locating Server/Instance Specified [xFFFFFFFF]." I have installed P6 as stand alone but when i...

For this reason do we use 2 rings & not 1 ring??????