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Recent content by Jay_

  1. Jay_

    UL 58 TANK DISTINGUISHING

    Thanks @HTURKAK again The only thing that is making me kind of use UL instead of EN is diameter. EN allows for maximum of 3m. unless new versions came up with broader intervals.
  2. Jay_

    UL 58 TANK DISTINGUISHING

    Thanks @HTURKAK , i am curious about the construction of the type 1 tank, what does a "direct contact" actually mean, Usually we fabricate the tank per EN 12285-1 and we enclose 300 degrees of primary tank shell with a secondary tank shell. The way we do that is by installing the external shell...
  3. Jay_

    UL 58 TANK DISTINGUISHING

    Dear All, UL 58 mentions the below, "3.1 For the purpose of this standard, the following definitions apply. 3.2 TYPE I TANK – A primary tank wrapped by an exterior steel shell that is in direct contact with the primary tank; where, the exterior shell is wrapped from 300 to 360 degrees of the...
  4. Jay_

    Pinpoint leak point in underground storage steel tank

    Hello All, Hope everyone is in good health, We have an underground steel tank, single layer, that started leaking, I was curious if there is any method to determine the leak location and pin-point it. Are there any sensors? any intuitive method to be used? Thanks,
  5. Jay_

    Cantilevered stair vs masonry wall

    I can do that, Pinned connection sound like a good idea, I think i can achieve a pinned connection by using two anchor bolts in the direction of the stair. Below is a new sketch. Any comments? Detailing is a hobby,
  6. Jay_

    Cantilevered stair vs masonry wall

    I am going to connect all the treads together at the free end. The concrete contractor said that the wall is well constructed, and he said it can take the bending moment. By issue is still how to fix the treads. Option 1 Option 2 Or option 2 with anchoring adhesive inside the drilled hole...
  7. Jay_

    Cantilevered stair vs masonry wall

    Yes, sorry all for the confusion, its a solid block of 400x150x200mm. What if i did option 2 but i filled the hole after drilling with anchoring adhesive prior to fastening each step? Detailing is a hobby,
  8. Jay_

    Cantilevered stair vs masonry wall

    I draw a sketch by hand. More than bolt in a masonry cell i inevitable in option one because the beam is too small compared to the masonry size, its 400x150x200mm solid masonry. The stair tread is composed of light hollow section trusses. Anyways here is the sketch. Detailing is a hobby,
  9. Jay_

    Cantilevered stair vs masonry wall

    Hello all, As the subject says, i am in one of those situations. There is an existing solid masonry wall that need to support a one floor cantilevered staircase structure. For the fixing of the cantilevered treads structure to the wall i am thinking of two options. Option 1) using chemical...
  10. Jay_

    Curving a Steel Pipe for a Helical Stair - Need Advice from Experienced Fabricators

    Thank you, everyone, for your responses and suggestions. I appreciate your input and the collective knowledge we have here. Let me address each of your comments individually. phamENG: I like your idea of building a temporary form to bend the tube around. Induction heating could be a viable...
  11. Jay_

    Curving a Steel Pipe for a Helical Stair - Need Advice from Experienced Fabricators

    Hello all, I hope everyone is doing well. I am currently working on an exciting project that involves curving a straight 355mm outer diameter steel pipe with a thickness of 16mm. The objective is to transform it into a curved pipe that will eventually take the form of a spiral, serving as the...
  12. Jay_

    Rust preventive - common practice methods

    Dear, Thank you all for your POVS. I might go with a solution of manganese phosphate. Although i would like to find a cheaper option. And please note that i only meant by "mill scale" is that the tanks arent sandblasted from the inside. And may i point out that i only want to apply this coat...
  13. Jay_

    Rust preventive - common practice methods

    Thanks, The client require the surface of the tank to be coated with something. it is specified. Detailing is a hobby,
  14. Jay_

    Rust preventive - common practice methods

    Dear, We are in the process of fabrication diesel storage tanks. Shape is cylindrical, horizontal and above ground. We need to ship these tanks for a period of 1 month to the client. The client is asking us to apply some product on the interior unpainted surface of the tanks to prevent rust...
  15. Jay_

    Elliptical manhole.

    Dear it is a client requirement. He needs the manhole to be an ellipse of some kind, 400x500mm. So the flange and manhole cover needs to be elliptical. Does appendix 2 apply? Detailing is a hobby,

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