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The receiver valves are classified as “Pressure accessories” in the sense of the PED Directive 2014/68/EU, Article 2, paragraph 5 and are subject of Article 4, paragraph 1, letter (c), 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;
This valve series is particularly suitable to intercept fluid in the liquid receivers.
The body is made of hot forged brass EN 12420 – CW617N and the spindle is made of galvanized steel. In order to avoid leakages, the seal used in the valves and directly in contact with the fluid is made of special sintered graphite which is practically chemically inert to all the refrigerant fluids listed above.
For the RVV..S / RHV..S series the brazing to the system shall be done with a low melting point alloy. During this process do not point the flame directly towards the body in order to save the gaskets.