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 product range is suitable for use with refrigerant R744 (CO2), classified in Article 13, paragraph 1, letter(b), of PED Directive 2014/68/EU as part of Group 2, therefore not toxic, not inflammable and not explosive fluid and indicated in A1 Group of Annex E of standard EN 378-1.
This valve series is particularly suitable for systems using hermetic compressors.
The valve body is made of hot forged brass EN 12420 – CW617N and the spindle is made of galvanized steel. A package consisting of elastomer seals and aramid fibers gaskets, approved by DIN-DVGW in accordance with DIN 3535, part 6 FA, guarantees an excellent seal to the outside between the spindle and the gland.
For the soldering type VHU..S, 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.