Semi-Welded Plate Heat Exchanger

Sondex Semi-Welded Plate & Frame



The semi-welded exchanger is similar to the standard gasketed plate exchanger, but in this case one of the cassette is a sealed welded channel, and the advantages of using these exchangers are:

– Laser welded plates
– Safe operation without leaking
– High working pressure
– Can be used for evaporators and condensers
– Suitable for NH3
– Minor gasket area
– Small liquid volume


Available Materials: Stainless, Titanium, Alloys

Typical Applications: Can be used for the same applications as the standard gasketed plate and frame, but the welded section can manage process fluids that can be harmful to the gasket materials (NH3).

Min Temp: 0°F

Max Temp: 450°F

Max Pressure: 400 psi

Design Codes Available: ASME


Product Brochure: Download PDF