NHT- heat transfer plates are manufactured by optimum embossing resulting in high heat transfer coefficients. Each unit consists of a series of grooved plates that are individually gasketed and pressed tightly together by compression bolts within a frame. Fluids enter and exit the PHE through portholes in one or both ends of the frame. Within the unit, the fluid to be heated or cooled flows down one side of each plate, while the heating or cooling medium flows in the opposite direction across the other side. The huge temperature difference created by these opposite flows allows maximum heat transfer efficiency for closest possible approach temperature.
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This permits low-cost and optimum adaption to the respective application conditions. Our product range includes single-pass and multi-pass plate heat exchangers with heat exchange surface up to 2000 m².
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In the field of Plate Heat Exchangers we offer a sophisticated range of products able to meet almost any requirement in machine and plant engineering. Our special “off-set” system with asymmetrical flow gaps creates highly efficient and cost-effective apparatuses whose performance (depending on design) is up to 17 percent higher compared with conventional plate heat exchangers. Our brand stands for highest quality standards and customer-oriented solutions.
Depends on application NHT can offer different models as below.
Our plate heat exchangers are optimizing heat transfer by large surfaces of corrugated plates drawing heat from one gas or liquid to the other. The high efficiency and an outstanding reliability in a compact design, offers an investment with the most attractive return over the product life time. Not to forget the energy saving capabilities and low environmental footprint.
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While our Brazed plate heat exchangers consist of a number of thin, acid-resistant plates, precision, stamped and assembled as a unit, each alternate plate being rotated 180º. The plate pack, assembled with two end Plates and connections, is vacuum brazed at extremely high temperatures providing a permanently sealed heat exchanger.
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Distinguishing itself from Plate Heat Exchangers, BPHE doesn’t contain rubber gaskets and can thus operate continuously from temperatures ranging from -180°C up to +200°C.The operating pressure can be as high as 30 bar.
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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. We are constantly looking to extend and upgrade the range, adding new performance criteria and greater flexibility. What’s termed ‘next-generation’ today will soon be standard for the entire Alfa Laval Industrial line.