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Alfa Laval DIABON® plate heat exchangers
Alfa Laval DIABON® plate heat exchangers
Alfa Laval DIABON® plate heat exchangers are designed for applications where corrosion is a significant concern. They utilize graphite plates available in three grades: DIABON® F100, NS1, and NS2, sealed with PTFE gaskets to ensure durability and efficiency.
Design Features
The heat exchangers combine Alfa Laval's expertise in heat transfer with SGL Carbon's graphite technology, offering high efficiency and corrosion resistance. The graphite plates are supported by springs to accommodate thermal expansion, reducing the risk of cracking.
Applications
These exchangers are ideal for handling corrosive fluids such as hydrochloric acid, sulphuric acid, hydrofluoric acid, phosphoric acid, and various industrial acids and catalysts.
Material Specifications
- DIABON® F100: Encapsulated in fluoroplastic film, offering superior resistance to oxidants and minimizing fouling.
- DIABON® NS1 and NS2: Resin-impregnated graphite with high strength and heat transfer efficiency, suitable for steam heating and condensing corrosive fluids.
Performance and Advantages
- Excellent corrosion resistance and high thermal efficiency.
- Reduced fouling tendency and suitable for fibrous media.
- Flexible design allows for easy modification by adding or removing plates.
- Enhanced safety factor against stress and fatigue cracking.
Graphical Data
The document includes graphs showing the resistance of DIABON® materials to nitric and sulphuric acids, highlighting their superior performance in corrosive environments.
Contact Information
For more details, visit Alfa Laval's website at www.alfalaval.com.
Catalog excerpts
Alfa Laval DIABON® plate heat exchangers The perfect choice when corrosion is an issue
Open the catalog to page 1
Design features Alfa Laval DIABON® plate heat exchangers work on the same principle as conventional plate heat exchangers, except that the plates separating the media are made of special graphite materials. The graphite plates are available in three different material grades, DIABON® F100, NS1 or NS2. The channels formed when these graphite plates are assembled in a plate pack are sealed by PTFE gaskets. In addition, the tightening bolts on the frame are fitted with springs to compensate for thermal expansion of the plate pack, hence minimizing the risk of cracking the plates. Alfa Laval and...
Open the catalog to page 2
DIABON® F100 plate pattern DIABON® F100 DIABON® F100 is a special graphite material in which the graphite particles are encapsulated in a fluoroplastic film. This not only forms a strong bond, but also cuts down the risk of oxidation and chemical attack on the graphite material. This means that DIABON® F100 has superior chemical resistance to highly corrosive oxidants such as nitric acid, which is present in stainless steel pickling acid. In addition, the smooth non-porous surface with anti-adhesive properties minimizes fouling on the plate surface. The anti-fouling properties of the plate design...
Open the catalog to page 3
How to contact Alfa Laval Contact details for all countries are continually updated on our website. Please visit www.alfalaval.com to access the information direct. PPI00081EN 0702 References Alfa Laval DIABON® plate heat exchanger in F100 material used for cooling hydrochloric acid in a German plant. Alfa Laval DIABON® plate heat exchangers in NS1 material used for cooling carbon steel pickling acid in a German steel plant. Alfa Laval DIABON® plate heat exchangers in F100 material used for weak sulphuric acid cooling in the mercury recovery section of a Finnish zinc plant. Alfa Laval and SGL...
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