Gasketed plate-and-frame heat exchangers
Alfa Laval doesn’t do average. Whether it is our multi-purpose Industrial range; the Semi-welded industrial range for refrigeration and exacting processes; the Hygienic range for food, beverage and pharma applications; or the Specialized range for condensation, evaporation and fibrous media – you buy into reduced cost of ownership and increased efficiency and safety.
Gasketed plate heat exchangers for modern requirements
- Highest thermal efficiency and close temperature approach
- Compact units - space saving, easy to service and maintain
- Maximum uptime - less fouling, stress, wear and corrosion
- Flexible - easy to adapt to changed duty requirements
Download the manuals for a wide range of Alfa Laval gasketed plate and frame heat exchangers here, including our Industrial Line, Semi-Welded Line, AlfaQ and Hygienic range.
Alfa Laval AlfaQ™ heat exchangers are used for HVAC applications such as district cooling substations, ice-storage systems, data centers, and free cooling systems. The range is certified according to the AHRI Liquid to Liquid Heat Exchangers (LLHE) Certification Program which ensures thermal performance according to manufacturers’ published specifications.
Our wide range of industrial gasketed plate heat exchangers is suitable for all types of industry and multiple applications from heating, cooling and heat recovery to condensation and evaporation. The Industrial line’s versatility allows it to be designed and configured for applications ranging from relatively simple duties with low requirements to very demanding duties with the highest requirements on both performance and documentation.
High efficiency and versatile design make the Alfa Laval BaseLine gasketed plate heat exchangers (GPHEs) solid choices for a wide range of hygienic heat transfer applications. This includes the food, dairy, beverage, home and personal care, biotech and pharmaceutical industries, providing owners and operators with peace of mind.
How it works
How plate heat exchangers work
The concept behind a heat exchanger is relatively simple – heating or cooling one medium by transferring heat between it and another one.
In a gasketed plate heat exchanger, the plates are fitted with elastomeric gaskets which seal the channels and direct the media into alternate channels. The plate pack is assembled between a frame plate and a pressure plate, and compressed by tightening bolts fitted between these plates. The channel plates and the pressure plate are suspended from an upper carrying bar and fixed in position by a lower guiding bar, both of which are fixed to the support column. The design allows easy cleaning and simple capacity modification (by removing or adding plates).
Plate and gasket technology
The design of the corrugated plates optimizes heat transfer by providing a large but compact total surface area through which the heat can be drawn from one liquid or gas to another.
The heat transfer area of the plates is pressed in a corrugated herringbone pattern. When two plates are superimposed with opposing herringbone patterns, the helix-like flow and high turbulence results in high transfer coefficients and effective self-cleaning.
A change in the corrugation pattern enables the heat exchanger to be used in different processes, even those with very dirty media.
Five reasons to use plate-and-frame heat exchangers instead of shell-and-tube
While some industry professionals are hesitant to stray from traditional shell-and-tube heat exchangers, here are five reasons why you should be using compact plate heat exchangers instead for greater efficiencies and cost savings.
Special plate types
Double-wall gasketed plate heat exchangers
Designed for use with fluids that cannot be allowed to mix. Prevents leaking fluid coming into contact with the fluid in the other circuit.
Ideal for fluids containing fibers or coarse particles. Designed to eliminate bridging of solids in the entrance area.
Enable aggressive and difficult fluids to be handled, and also extend the pressure range.