Are expansion joints secured with expansion bolts?
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Are expansion joints installed using expansion bolts?
Expansion bolts come with expansion joints; there are also plastic expansion joints, as well as those that use self-tapping screws. Choose based on the use case~~~
Is the expansion joint of the flange type? How is it connected to the pipeline? Are bolts not required? Is this bolt expansion-type?
Its full name is pipe compensator. How are those long bolt rods on it, as you mentioned, used? In positive-pressure pipelines, the length is usually fixed to minimize expansion, with all internal bolts loosened ； The opposite is true for negative-pressure pipelines. These bolts can also be used during maintenance and disassembly.
The first floor is correct; each screw requires at least four nuts
I’ve seen it, but I’ve never considered the issue with this bolt. @Dawn bellows
For flange connections, it’s of course GB5782 bolts that are used; expansion bolts are used for fixing to concrete. I’m not sure how the two are connected
An expansion joint is a type of compensator; expansion bolts and the bolts used on expansion joints are two different things. The four bolts associated with a single tie rod of an expansion joint are not all identical – the two internal bolts are used for securing it during transportation, while before operation they need to be loosened so that they do not exert force on the end plates. The contact surface between the external bolts and the end plates is circular, allowing the bolts to accommodate the tilting of the tie rods as the expansion joint expands laterally. Expansion bolts are those that are driven into concrete; I agree with the person above.
Referencing the answer above, I also learned *. Thank you to the original poster for sharing, as it has helped me learn a lot