Taha block type plate heat exchanger of TGT Co. Which Known as TAHA-Block series, it includes a collection of rectangular heat plates and they are welded by laser welding machine on in between in parallel edges. The structure of this type of heat exchanger, make it possible to disassemble all four sides of it and have access to all parts of the package for inspection and cleaning. In this type of heat exchanger, the operating temperature range is -50 to 400 ° C and the pressure is up to 40 bar. Therefore, this type of heat exchanger is very suitable for high temperature and high pressures applications and in contact with corrosive fluids.