In brewing, the gap width of a heat exchanger depends on the type of beer being produced. Simple, top-fermented beers require coolers with gaps of around 3mm, which are too narrow for well-hopped varieties. The turbidity would unreliably pass the cooler and, in the worst-case scenario, lead to a complete blockage.High Service Life and High Efficiency
Enter the newNL 100M plate, the big brother to the NL80M plate, which is available in Titanium as well for ultra-purity and cleanliness. And, it’s already making its mark, with large orders coming in from contractors in the food and beverage industries. The NL100M plate now offers the ideal compromise between flexibility and efficiency. It is suitable for operating pressures of 16 bar, provides connections with a nominal diameter of 100mm and has a heat exchange surface area of 0.47m² per plate. With a gap width of approx. 4.15mm, it provides enough space to allow strongly-hopped media to pass through and also provides improved heat transfer, compared to plates with even bigger gap width or wide gap patterns.
The advantages of reducing the gap width to approx. 4.15mm are a significant improvement in heat transfer in the double digit percentage range and lower energy consumption. Customers benefit from a good heat transfer rate, less build-up of fouling and extended production times.
Further Food Applications
As well as brewing the NL100M is ideal for a wide range of dairy products. The challenge in those applications is that the product needs very careful handling, with minimum stress to achieve the desired smooth texture and viscosity.
The answer is a heat exchange solution that combines low velocity with low pressure. With conventional plates, low velocity reduces the performance, leading to a build-up of deposits on the surface.
But the plate heat exchanger with NL100Mplates, with the OptiWave plate design, offers an outstanding interaction of the plate profile and corrugation depth. It ensures high heat transfer rates by means of uniform distribution of the product over the entire width of the plate. The large gap of 4.15mm keeps the original product’s viscosity at a high level.
Furthermore the NL100M is suitable for oil and steam and glycol applications where low pressure drop is the limiting factor.
Reliable Gaskets, easy Installation
The PosLoc assembly system and EcoLoc gasket system ensure easy assembly of the heat exchanger during installation and maintenance. The PosLoc design makes sure that the plates of gasketed plate heat exchangers align automatically during assembly and seal tight. The EcoLoc gaskets can be attached easily without special tools or adhesives. When the device is closed, the correct fit is established automatically. This results in reliable gaskets that can be replaced if necessary, quickly and easily.