Filter strainers S PLUS series

The filters strainer are classified as “Vessels” in the sense of PED Directive 2014/68/EU, Article 2, paragraph 2 and are subject to Article 4, paragraph 1, letter (a), of the same Directive.

All the products range is suitable for use with fluids proper to the Group 1 and 2, as defined in Article 13, paragraph 1, letter (a) and letter (b), of PED Directive 2014/68/EU with reference to Regulation (EC) n.1272/2008, in accordance with safety classification A1, A2L and A3 in Annex E of standard EN 378-1:2016. Examples of A1 and A2L refrigerant fluids are:

– HFC R32, R134a, R404A, R407C, R410A, R507;

– HFO R1234yf, R1234ze and blends HFC/HFO R448A, R449A, R450A, R452A, R452B, R445A, R454B, R454C, R513A.

Examples of A3 refrigerant fluids are (HC hydrocarbon):

– R290, R600, R600a, R1270;

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 SAE Flare threaded connections and soldering connections in copper-plated steel.


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.