Questions about the dimensions of heat exchanger gaskets?
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We generally use the standard JB4718-4719 for our heat exchanger gaskets, but when I ask manufacturers to produce gaskets according to this standard, it causes problems during installation. Excluding the issue of installation quality by the construction team, I still feel that the gaskets for heat exchangers are too large according to the standards. Especially when these heat exchangers are used in high-temperature environments, the gaskets expand due to the high temperatures, resulting in thermal stress. If the gap between the gasket and the sealing surface is very small, it’s easy for the gasket to be compressed out. Therefore, I suggest that the outer diameter of the gaskets should be one size smaller than the standard dimension. What are everyone’s opinions?
Personally, it is possible to create custom gaskets, but the condition is that sealing must be ensured
We agree with that; when designing, we usually create custom gaskets on our own
I work in design too, but we’ve hardly encountered this kind of problem. When the temperature is high, some gaskets cannot be used; I think it’s important to choose the right type of gasket.
Standard gaskets should take this issue into account. At high temperatures, you can choose to use other types of gaskets
http://www.bzfxw.com/soft/sort012/sort023/232864.html
You can modify the dimensions of the standard gaskets, but it is necessary to ensure a good seal; moreover, there should be no difficulties in manufacturing these gaskets