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Welded and Semi-Welded Plate Heat Exchangers

Welded and Semi-Welded Plate Heat Exchangers

A Welded Plate Exchanger is similar to a gasketed Plate and Frame Heat Exchanger except Welded seams replace the gasketed seals allowing this exchanger to be applied in applications of high temperatures and pressures. Built from 316 Stainless Steel, welded plate heat exchangers provide exceptional corrosion resistance. Corrugated plates produce highly turbulent flow in a true counter-current direction. This results in high efficiency and a very compact heat exchanger design. Due to the smaller size and reduced material content, they can be the most economical heat transfer choice in applications where gaskets are not acceptable.

Semi-Welded Plates feature plates that are welded using advanced laser welding techniques.Two plates are welded together and are fitted with a VitonĀ® O-Ring and/or TeflonĀ® gasket liner. The resulting plate pack has every other plate fully serviceable, while maintaining integrity of the welded plate pair. This design is especially suitable for critical fluids and gases, such as ammonia or caustic process chemicals where fluid loss is not acceptable. In the case of ammonia refrigeration, the reduced volume results in significant savings.

Typical Applications include:

welded plate
  • Process chemicals
  • Oil cooling
  • Caustic soda
  • Refrigeration
  • Heat transfer fluids (at high temperatures)
  • Hazardous liquids or Expensive Fluids
  • Wastewater and Slurries
  • High temperature applications
  • High pressure applications