Filter strainers S series

The filter strainers are classified as “Vessels” in the sense of Directive PED 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 fluids proper to Group 2, as defined in Article 13, paragraph 1, letter(b), of Directive PED 2014/68/EU with reference to the Regulation (EC) n. 1272/2008, according to safety classification A1 in Annex E of the standard EN 378-1: 2016. Examples of refrigerant fluids are:

– HFC R134a, R404A, R407C, R410A, R507;

– Blends HFC/HFO R448A, R449A, R450A, R452A, R513A.

The function of a filter strainer is to protect the system from solid contaminants.


All the filters have body and head completely manufactured in steel UNI EN 10130 – DC04 and the components are TIG welding without filler material, realizing a very compact body without discontinuity and therefore more durable. The special feature of this filter is the screen basket in AISI 304 with a wide filtering surface that allows the retention of impurities larger than 180 μm. Filters of this type are not cleanable. The production range includes versions with threaded connections or solder connections.


In order to avoid the relapse of dirt particles in the circuit, we recommend installing the filter with a vertical longitudinal axis and with the arrow pointing down. Considering the importance of filters inside the refrigeration system. We suggest defining a maintenance program to verify the efficiency and in case of necessity to substitute filters to ensure the correct function of the system.