PLATE HEAT EXCHANGER

A heat exchanger is a piece of equipment built for efficient heat transfer from one medium to another. The media may be separated by a solid wall to prevent mixing or they may be in direct contact. They are widely used in space heating, refrigeration, air conditioning, power plants, chemical plants, petrochemical plants, petroleum refineries, natural gas processing, and sewage treatment.

Plate Heat ExchangerA plate heat exchanger is a type of heat exchanger that uses metal plates to transfer heat between two fluids. This has a major advantage over a conventional heat exchanger in that the fluids are exposed to a much larger surface area because the fluids spread out over the plates. This facilitates the transfer of heat, and greatly increases the speed of the temperature change. Plate heat exchangers are now common and very small brazed versions are used in the hot-water sections of millions of combination boilers. The high heat transfer efficiency for such a small physical size has increased the domestic hot water (DHW) flowrate of combination boilers. The small plate heat exchanger has made a great impact in domestic heating and hot-water. Larger commercial versions use gaskets between the plates, smaller version tend to be brazed.

All plate heat exchangers look similar on the outside. The difference lies on the inside, in the details of the plate design and the sealing technologies used. Hence, when evaluating a plate heat exchanger, it is very important not only to explore the details of the product being supplied, but also to analyze the level of research and development carried out by the manufacturer and the post-commissioning service and spare parts availability.

An important aspect to take into account when evaluating a heat exchanger are the forms of corrugation within the heat exchanger. There are two types: intermating and chevron corrugations. In general, greater heat transfer enhancement is produced from chevrons for a given increase in pressure drop and are more commonly used than intermating corrugations.

We offer a comprehensive range of plate heat exchanger designs, and sizes to meet virtually any operational specification, from the most delicate to the most agressive applications:

Bonded plate heat exchanger

Gasketed plate heat exchangers
Effective heat transfer, easy to clean, verstile and environmentally efficient, Alfa Laval gasketed plate heat exchangers are standard equipment for efficient heating, cooling, heat recovery, condensation and evaporation.

Bonded plate heat exchanger

Semi-welded plate heat exchangers
Easy to modify, inspect and clean, Alfa Laval semi-welded plate heat exchangers handle most refrigerants on the welded side and are particularly suitable for ammonia duties. The flexible modular design copes with fatigue stresses and ice formation.

Bonded plate heat exchanger

Fully-welded plate heat exchangers
Perfect for heat recovery in corrosive operating environments and for handling aggressive, high-temperature fluids of all kinds, Alfa Laval fully-welded plate heat exchangers are compact making it easy to be installed virtually anywhere.

Bonded plate heat exchanger

Brazed plate heat exchangers
Efficient heat transfer with an extremely small footprint, making them ideal for demanding installations where space is at a premium, Alfa Laval brazed plate heat exchangers forming a self-contained unit that can handle both high pressures and high temperatures resulting in significant increases in overall efficiency.

Bonded plate heat exchanger

Fusion bonded plate heat exchangers
Alfa Laval fusion bonded plate heat exchangers are a breakthrough gasket-free alternative for a wide range of industrial applications that use aggressive liquids providing levels of hygiene and corrosion resistance unmatched by any other brazed heat exchanger.

Plate Heat Exchanger
Plate Heat Exchanger