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  • Users: uncletank
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  1. uncletank

    API 650 Nozzle through Floor and Shell

    Hi all, We are currently designing a small anchored sulfuric acid tank (D = 4.2m, H = 4.8m )and have been requested by our client to allow for a "Gullet Drain" That is basically a pipe with centreline intersecting the floor to shell joint (see attached sketch). Legislation in New Zealand...
  2. uncletank

    Geodesic Dome Roof

    Hi, We are currently designing some 40m (130ft) Diesel tanks to be located in a climate between 10 - 40°C (50-104 °F) close to the ocean. We are interested in using aluminium geodesic domes primarily to reduce construction costs and get away from using columns or truss type roof support...
  3. uncletank

    API 620 or API 650?

    We are currently designing a number of tanks in Asia which store chemicals that require to be kept at temperatures equal to or below 15°C (60°F) to prevent polymerization of the stored products. Note that the average ambient temperature at this site is around 30°C (85°F). To maintain product...
  4. uncletank

    API 653 Lap patch maximum size restrictions?

    We are currently performing an assessment of a tank which has been repaired at some stage in the past using a lap patch that covers the full circumference of the first strake/course. The lap patch has been fillet welded directly to the floor projection and to the first strake. The height of the...

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