Welded
Fully Welded Plate & Frame Heat Exchanger
Plate efficiency without a single gasket in the pack.
Also called: Fully welded plate heat exchanger · Welded PHE · Welded plate and frame heat exchanger
A fully welded plate pack in a bolted frame. Keeps the thermal efficiency and compactness of a plate unit while removing the gasket as a temperature, pressure and chemical-compatibility limit.
A fully welded plate pack in its frame, built for a condensing duty. No gasket anywhere in the thermal section, so temperature stops being the limit.
Headers welded the length of the pack, carrying the flow into every channel without a gasket at any joint.
The nozzle welded to the header: the connection a fully welded unit makes in steel where a gasketed one makes it in rubber.
The port, flanged through the casing, with the welded plate pack visible behind it.
The welded headers seen close, running across the edge of the plate pack.
Two packs on the shop floor, elbows welded to the headers and the plate edges exposed along the flank.
Plates stacked during welding: each pair sealed to the next, which is what removes the gasket from the pack.
A finished fully welded unit: the plate pack sealed between its oval end covers, the pack edge visible down the flank, all four nozzles flanged.
Chosen for
- High design temperatures
- Solvents and hydrocarbons
- Duties where gasket life is the limiting factor
Every heat exchanger we supply is hydraulically tested before despatch, both circuits under pressure together at the test pressures stated on its data sheet. The unit passes only if it holds that pressure without a drop, which is what demonstrates the whole assembly is leak-tight.
The circuits are also tested against each other, one pressurised and the other watched, so a leak between the two media would show. A copy of the test certificate is available on request.
Used in
- Chemical
- Edible Oil Refining
- Sugar Mills
- Petrochemical
- Oil & Gas
- Fertilizers
- Pharmaceutical
- Power & Cogeneration
Further reading
Other welded designs
- Plate & Shell Heat Exchanger
- Spiral Heat Exchanger
- Plate & Block Heat Exchanger
- Shell & Tube Heat Exchanger
Synergizing Technologies is not affiliated with, authorised by, or a distributor for any original equipment manufacturer named on this site. Brand and model names are used solely to identify the equipment our replacement plates and gaskets are compatible with. All trademarks are the property of their respective owners.