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The replaceable solid core filters are classified as “Vessels” in the sense of PED Directive 2014/68/EU, Article 2, paragraph 2 and are subject of Article 4, paragraph 1, letter (a), of the same Directive. All the product range is suitable for use with hydrocarbon refrigerants R290 (Propane), R600 (Butane), R600a (Isobutane), R1270 (propylene) proper to the Group 1, as defined in Article 13, paragraph 1, letter (a), of PED Directive 2014/68/EU and classified as A3 Group of Annex E of standard EN 378-1.
The function of these filters is to protect the system from solid contaminants, absorb moisture to prevent the formation of acids that damage the compressor, avoid the formation of ice and the consequent reduction in the efficiency of the system.
The filters are made entirely in steel, with the exception of the solder connections which are made of EN 12735-1 – Cu-DHP copper tube. All the parts of the body are MIG welding with specific material. If it’s needed to replace the cores, the filtration system, including the filter tube of stainless steel AISI 430, it’s easier to replace thanks to a handle ergonomic grip.
To allow easy extraction of the filtration system the choice of installation location must contemplate the distance ‘K’ (see technical datasheet). Considering the importance of filters inside the refrigeration system, it’s suggested to define a maintenance program to verify the efficiency and in case of necessity to substitute cartridges to ensure the correct function of the system.