Plate and Shell Heat Exchanger is designed as a performance upgrade over shell & tube heat exchanger and welded, brazed plate heat exchangers. This heat exchanger type supplies high thermal performance with compact size, similar to that of gasketed plate heat exchangers, with low hold-up volume and low installed weight, especially when filled. But it can be applied well when the operation condition is high temp and high pressure to which gasketed plate heat exchangers cannot be applied.

A plate heat exchanger (PHE), also known as gasketed plate heat exchanger (GPHE) or plate and frame heat exchanger, comprises a pack of spaced corrugated plates arranged such that the two heat exchanging fluids flow through alternate spaces in the pack. 

The corrugations maintain the gap between adjacent plates which are sealed against each other. There are nowadays several different technologies to effect a seal between the plates and to maintain the pack in a compressed state, glued or non-glued. 

Welded Plate Heat Exchanger

All-welded plate heat exchanger is a kind of plate type heat exchangers that can endure high temperature and high pressure. Highest temperature 400°C, pressure 3.5Mpa. Relying on application practices, Fully welded plate heat exchangers are applied in oil and gas industry, refinery applications, pharmaceutical industry, chemical/petrochemical industry.