Why do plate exchangers typically serve lower pressure fluids than shell and tube heat exchanger?

Question

According to Wikipedia http://en.wikipedia.org/wiki/Heat_exchanger, plate exchangers typically serves lower pressure fluids than shell and tube heat exchanger, why?

Tubes in plate exchangers are simpler and have larger diameter, seems to be more robust to hold higher pressure fluids.

Answer 1

Because the plates are usually very thin for their dimensions and tubes tend to have more strength for the pressure loading.

I would check better references such as Simonson: Heat transfer for more thorough detail instead of wiki...