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Is there any standard for installing reinforcing pipes on the level gauge outlet pipes on the tower body?

2009-09-17View Original

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Is there any standard for installing reinforcing pipes on the level gauge outlet pipes on the tower body? What is the exact name of this reinforcement tube?
Reply #22009-09-17
I really haven’t heard of this problem before! The diameter of the level gauge interface is generally small (DN15 or DN20); the tank body does not require reinforcement, only that there should be no openings at the welds. High-pressure equipment requires a diameter change: the diameter at the connection to the cylinder should be larger, while the diameter at the flange where the level gauge is connected should be smaller. However, these components must be forged, with a smooth transition in the diameter change, and they have to be integral in design. For ordinary pressure vessels, it is sufficient to use seamless pipes with a slightly thicker wall thickness. Atmospheric pressure vessels have no special requirements; merely when the insulation layer of the tower is thick, the level gauge connection pipe needs to be longer, and it can be fixed using angle supports. The poster is probably referring to high-temperature equipment and taking thermal deformation into account; however, this applies only to large-diameter connections, while no measures are needed for the level gauge interfaces.
Reply #32009-09-18
It is specified in HG20583; further details are given on the second floor – for pipes smaller than DN25, a tie rod is required if the extension exceeds 150.
Reply #42009-09-24
The pressure rating of the tower is over 40 kilograms
Reply #52009-09-24
What is the exact name of this fitting that is welded to the tower body? To prevent corrosion, we weld it first; we call it a reinforcement tube. After that, we weld the pipe connecting to the level gauge. But what exactly is this reinforcement tube? Information on it is required for the material list! ! Thank you!
Reply #62009-09-24
The opening reinforcement can be calculated according to GB150; if it does not meet the requirements, then forged pipes should be used. It is specified in HG20583; further details are given on the second floor – for pipes smaller than DN25, a tie rod is required if the extension exceeds 150.
Reply #72009-09-24
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