AHRI certified gasketed plate heat exchangers AlfaQ rangeAlfa Laval AlfaQ™ heat exchangers are used for HVAC applications and are certified according to the AHRI Liquid to Liquid Heat Exchangers (LLHE) Certification Program which ensures thermal performance according to manufacturers’ published specifications. AHRI certification is the only global, third-party performance certification for plate heat exchangers.HVAC applications:. District cooling substations.
Ice-storage system. Data center cooling. Free cooling systemsEliminate uncertainty about thermal performanceFor many years it has been a common practice in the plate heat exchanger industry to “adjust” or tweak heat duty calculations. Manufacturers manipulate calculations so that component costs can be minimized and a smaller plate heat exchanger can be offered at an attractive price. However, the result is that end customers get under-dimensioned heat exchangers, leading to higher system-wide energy use, higher operating costs and compromised environmental performance.These “recalculations” make it harder to choose a heat exchanger that will provide the required performance and increases the risk that it will underperform. It creates uncertainty for everyone involved in recommending, selecting and using heat exchangers – consultants, specifiers and end customers – and undermines confidence in the industry as a whole. Pressure plate roller What is it?The pressure plate must be easy to move and slide along the carrying bar in order to gain access to the plate pack.
The most common solution is a roller on top of the carrying bar, making it easy and less time consuming to conduct service. The roller should be made out of metal to be able to carry the weight of the pressure plate. Risks with other designsThe mechanical solution of the roller can be more or less robust. The risk is a pressure plate that is jammed and impossible to move when it is time to conduct service.
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