VEVOR Heat Exchanger 3/4” MNPT Ports Brazed Plate Heat Exchanger 30 Plate heat exchanger plate exchanger Stainless Steel 316L Flat Plate Heat Exchanger Plate Chiller Wort for Hydronic Heating

This is a copper-brazed plate heat exchanger. Copper is solder, which is equivalent to glue, and is used to weld each piece together. Therefore, there is also copper in the channel, which will come into contact with water. It is not recommended to use it if seawater is used, because seawater has a high salt content and contains microorganisms, which will not only corrode copper but also stainless steel.

The manual is shown in the document in the link: http://qiniu.vevor.net/20200313132213991.pdf