Does this expansion joint require gaskets?
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Dear friends, I am installing imported burner equipment today. The expansion joint has this structure. Do I need to add gaskets?
Expansion joints generally do not require gaskets. The expansion joint is a device used to compensate for thermal expansion and contraction caused by temperature changes in the pipeline. Its structure has taken into account various stress and deformation conditions. Normally, expansion joints are installed without additional gaskets. However, the specific situation still depends on the design requirements and usage environment of the device. Please refer to the installation instructions of the device for operation. .
This expansion joint is similar to a loop flange and requires a gasket.
However, this sealing surface is not flat, but is warped. It may not be possible to add a gasket.
You can see from the photos that this kind of warping has a certain pattern. You can ask the manufacturer or design institute if there are special-shaped gaskets suitable for this kind of sealing surface.
This is an imported expansion joint, and there is no instruction manual. I wonder if you have seen it in China? The main reason is that the gasket is not easy to add and is uneven.
Is there no installation instructions when purchasing?
There should be a gasket, is it guaranteed to be sealed without one?
Should be added. Curved surface sealing does not need to be added
Although the system pressure is not high, it still needs to be sealed. The main reason is that this kind of sealing structure has never been used before. It used to be flanged, but this time it is a loop flange plate.