Heat exchanger design pressure
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I have a question: if the design pressure on both sides of a plate heat exchanger is 6 kg, does that mean it can withstand a operating pressure of 6 kg regardless of whether there is a fluid flowing on the other side?
If the medium pressure and flow rate are the same, either route will work; a plate heat exchanger is an example of such a solution. In the case of shell-and-tube heat exchangers, many of the internal tubes are made of stainless steel while the shell is made of carbon steel. Different media can cause corrosion to the tubes or the shell, and variations in flow rate also pose issues; therefore, their use is advised with caution.
It should work. It is also normal for channel leaks to be sealed after brazing of plate-fin heat exchangers.
Yes, when testing our plate heat exchangers, we apply pressure to each side one by one.
Could I have your contact information?
Yes, before leaving the factory, the plate heat exchanger undergoes a hydrostatic test using a single-sided flow channel, and theoretically the test pressure is 1.3 times the design pressure
Of course! No, generally the operating pressure should be lower than the design pressure; there are also cases where the maximum operating pressure is equal to the design pressure ； However, there is no issue with stress; the design takes into account the maximum pressure difference on both sides
Unless it is specified as a design for low pressure, it is assumed that the design pressure is gauge pressure, and one side can withstand it. :)