AST Aboveground Storage Tank Forum RSS Welcome the aboveground storage tank forum, a bulletin board dedicated to tanks, fuel tanks, plastic tanks, fuel storage tanks, and above ground storage tanks for engineers, tank operators, maintenance personnel, and technicians who work on or around these aboveground storage tanks (AST) and chemical plastic tanks. 1/24/2018 6:38:18 AM Earl at AST Aboveground Storage Tank Forum RSS 180 150 Re: AIFR panel laying - By: [39] Making the skin very tight is not a great idea - some sag gives it great strength, especially in the short direction. You also need to space the girders properly to assure a proper sheet overlap. You also need to walk the sheets to tighten the girder sheet clamp fasteners and the underlaying wood gives you something to walk on. The designs with studded girders and pre-punched holes in the sheet may be especially vulnerable to tearing if the sheet has no sag and an API load is placed on the middle of the sheet between the girders. In my opinion, if wood is not available, some other spreader should be used - metal, plastic, etc. Wed, 17 Jan 2018 08:21:00 -0300 Re: AIFR panel laying - By: karsadi [652] Dear, Sir<br />I also want to get a new experience, <br />because my experience except as you explain, is not there because the wood in our country is abundant so it is the cheapest temporary support, so no need to think of any other ideas in lieu of this method, however I also interested if the situation is forced how because sometimes ideas arise because of its nature,<br />I have not seen or thought of any other material suitable for a temporary stand in maintaining the accuracy of the AL.IFR construction.<br />Or maybe there is experience because the situation was forced and the result was better.<br />Thats what I can say at the moment.<br />I say thank you very much for the information will be come.<br />Best Regards<br />Karsadi Tue, 16 Jan 2018 20:52:00 -0300 AIFR panel laying - By: Vicky [1911] Till date I have seen laying of AIFR panels with the support of temporary wooden frames between the girders. Is there any other means of laying the deck panels such as unrolling it fully throughout the girder length and stiffening / pulling the ends with some special machines?<br />Kindly share your experience and ideas.<br /><br />Thanks<br /> Fri, 12 Jan 2018 09:54:00 -0300 Re: How to write on tank Name Plate - By: karsadi [652] My opinion I agree with Mr. BABRTs <br />The name plate should last as long as the tank is still there, to remind staff to look for the records they need to do. <br />When it has made a change in service by fixing records it is the key to tracking and updating history.<br />Construction records may include &#226;&#8364;&#162;nameplate information, drawings, specifications, construction completion report, and any results of material tests and analyses. <br />If information required to complete the nameplate as required&#226;&#8364;&#162; by the as-built standard is available and traceable to the tank, a new Replacement Nameplate, similar to that shown in figure 10-1 in API 650, may be attached under the direction of the Authorized Inspector: <br />The new nameplate shall contain all of the information required by the as-build standard and be marked Replacement Name plate.<br />The new nameplate shall be attached to the tank shell adjacent to the existing nameplate, if any an existing nameplate shall be left attached to the tank. Nameplate shall be attached as specified in API 650, if you want more detail, please see Section 13-Marking and Recordkeeping from API 653.<br /> Thu, 11 Jan 2018 19:37:00 -0300 Re: How to write on tank Name Plate - By: BABRTs 973 [53] You should keep the original datum plate and put up a new on reflection the changes and modifications done to API 653. Thu, 11 Jan 2018 11:13:00 -0300 Re: API 653: Storage Tank Inspector - By: BABRTs 973 [53] Go to the API ICP site and bring up the 653 Inspector section. In it you will find the Body of Knowledge which covers what will be required to know for the test. With your long involvement with 650 a bunch of this should be easy. However there is a difference in 650 vs 653. Also the test will be covering your ability to establish next inspection intervals based on corrosion rates. Also the evaluation of shell corrosion and the extent requiring repair. You should also know how to review Section IX welding procedures WPS, Procedure Qualifications PQR and welder qualifications WPQ. Selection of welding electrodes. Coatings and linings and how they pertain to next inspection intervals and a basic understanding of cathodic protection. Safety during inspections and API 575 will be covered in the closed book part of the test. Understand Appendix B in 653 for settlement and the requirements of settlement surveys and edge settlement evaluation.<br />The order of priorities for study are:<br />API 653<br />API 575<br />ASME Section IX<br />ASME Section V as it pertains to the BOK<br />API 650<br />API 651<br />API 652<br />API 571<br />API 577<br /><br />Other <br /><br /> Thu, 11 Jan 2018 10:00:00 -0300 How to write on tank Name Plate - By: N.D.Dung [1910] Dear All,<br /><br />We have a tank build on 1990, we do alternate by adding one shell course on 2010 and we move it to new location on 2017. Do we need to change original name plate by new name plate or we keep original name plate and add a new name plate?<br /><br />What should we mention on new name plate? We will mention original build date, alteration date and move date? Wed, 10 Jan 2018 23:26:00 -0300 Re: API 653: Storage Tank Inspector - By: ITS [1678] Like you, we would think that there would be an online preparation course for API653 Inspectors Exam in todays openness. I know of none. <br /><br />With that said I cannot imagine how complex the lessons would be, for as you know the reference materials are many and weighty - I dont think that is a word but I like the context of it. Wed, 10 Jan 2018 10:11:00 -0300 Re: API 653: Storage Tank Inspector - By: karsadi [652] Dear Mr. BABRTs<br />I am very happy with your attention and your response and hopefully become to add spirit for my life journey.<br />Daily activities as a special counselor of the tank, To provide input to get Tank conditions under FFS conditions at least for a Ten Year Look Ahead for Refinery PERTAMINA Cilacap &#226;&#8364;&#8220; Indonesia<br />I started working on API 650 tank construction as a tank engineer since 1973 after graduating mechanical engineer from technic college from 1972 till now.<br />To describe the history of my tank work experience and daily activities that I do up to now, I expect to get Mr. Babrts email address or if it does not bother to help me please to be sent directly to email address<br />Ive read it, Im just curious, because I studied the field and practiced of API 575, API 579, API 650, API 651, API 652, API 653, API 2000 and others.<br />In the meantime I like to read API 653: Tank Inspection Code, writing from Harvard Technology Middle East with Mr. Ron Van Arsdale as Course Instructor s<br />Indeed, I am aware and admit I cannot fully understand or memorize it outside, but at least I have read it and it is worthwhile commenting and reviewing the assessment report by the contractor as a basis for overhaul or modification of existing tanks in order to be a condition of a proper tank or Fitness- for-Service or suitability for service<br />So little history of my life journey that begged to be given way to reach has a certificate API 653 Tank Inspector.<br />Sorry if there is a shortage in conveying the desire that until now has not been done.<br />Again I look forward to his help and thank you very much for his attention and assistance.<br />Respectfully yours<br />Karsadi<br /> Tue, 9 Jan 2018 19:27:00 -0300 Re: API 653: Storage Tank Inspector - By: BABRTs 973 [53] First, have you done any tank inspections or have background in aboveground storage tank repair or construction? Just using online recourses to attempt passing the 653 will be difficult. Just reading, knowing and understanding the Body of Knowledge is really all that is necessary.<br />Easy. <br />If you know what you are reading. A 653 has to have a grasp on several disciplines.<br />Welding<br />Coating<br />Cathodic Protection<br />Construction<br />NDE<br />Civil Engineering<br />Mechanical Engineering<br />Safety<br />No one is a expert in all, but you need to have a understanding of each and how it applies to tank repair and construction.<br />I never took the prep class for my test. I was doing inspections for two years and learned in the field. I have a background in welding, inspection, NDE, and civil. And it has been 22 years since I took the thing.<br /> <br />Passing the test is application of discipline to sit down and read. You can pay a bunch of money which may or may not force you to do what you can do for free. If you take the BOK and study it for a month every day and have a application where you can use this knowledge you are acquiring on a somewhat consistent basis, you should be able to pass this test without a prep class. However, if you have doubts about your discipline, I would recommend the on site prep classes. If you cant take the time to study on your own, you will not take the time to use a online class.<br />Just my opinion.<br /><br /><br /><br /> Tue, 9 Jan 2018 10:33:00 -0300 API 653: Storage Tank Inspector - By: karsadi [652] Dear Sir / Madam<br /><br />At this time, I hope someone will be willing to provide information on how to get the API 653: Storage Tank Inspector course online and if there is an expectation of an address that can be contacted or if I do not mind please inform to my email address<br /><br />We hope someone will help me<br />So I convey my intentions and goals and expectations.<br /><br />Thank you very much for your attention and help.<br /><br />Best Regards<br /><br />Karsadi<br /> Tue, 9 Jan 2018 03:54:00 -0300 Re: Api 650 - adding a manway in a small tank - By: BABRTs 973 [53] What standard was this tank built to. 12F, UL, API 650 Annex J Fri, 5 Jan 2018 12:19:00 -0300 Re: Internal Floating roof Tank - By: [39] At least one vendor uses chain for their suspension system. Would this still be considered a lifting device? Wed, 3 Jan 2018 20:18:00 -0300 Re: ATREUS AL IFR and AL. Dome Roof Tank - By: karsadi [652] Dear Mr. Dunedin <br />Thanks to the list of AL. IFR &amp; AL. DRT Manufacturing, and hopefully in this election is not wrong decision. If you do not mind through this forum, may I ask for your email address or send it to my email address.<br />By the way, please help In connection with a malfunction of my computer, I lost track of Mr. Brian Quinn from and if you do not mind please inform me to my email address<br />Best Regards<br />Karsadi<br /> Wed, 3 Jan 2018 09:01:00 -0300 Re: Internal Floating roof Tank - By: Dunedin [37] A very positive interpretation of the role of the cables used on the suspended IFR. However it is necessary for the relevant regulatory authorities to make their recommendations! I do know that in certain EU Countries the position is that the cables are subject to regular inspection and certification and as such this prevents the use of the suspended IFR. Tue, 2 Jan 2018 03:21:00 -0300 Re: Api 650 - adding a manway in a small tank - By: [39] Yes, the opening should be reinforced. When you perform the calculations you can include as reinforcement portions of the neck and excess shell plate thickness as allowed by code. Mon, 1 Jan 2018 15:28:00 -0300 Re: Internal Floating roof Tank - By: [39] My suggestion is that the cables are suspension cables, not lifting. They are static, do not wind over a drum, are not attached removed and re-attached. As such I dont think of them as falling under the category of below the hook equipment but as engineered hopefully components of the floating cover. Mon, 1 Jan 2018 15:25:00 -0300 Re: Api 650 - adding a manway in a small tank - By: Karsadi [652] Please see API 650, table 5-4 then read footnote b and you follow so on until you understand what you should do, good luck Mon, 1 Jan 2018 00:30:00 -0300 Re: Api 650 - adding a manway in a small tank - By: ITS [1678] Of course you need to consider reinforcement of a shell opening. You should review the standard again. Sun, 31 Dec 2017 11:35:00 -0300 Api 650 - adding a manway in a small tank - By: Erez [1904] Hi all, <br />would like to get some help. I have a small tank which I would like to add a 600mm manway,<br />And I want to know if I gotta have reinforcement.<br />tank height : 3 m <br />tank diameter: 2.7 m<br />shell thickness : 10 mm <br />i read that since it is a small tank it should have min shell thickness of 5 mm and the rest can be considered as reinforcement. <br />what I didnt seem to find is what should have been the reinforcing plate thickness.<br /><br />Thanks.<br /><br />Erez. Sat, 30 Dec 2017 01:51:00 -0300