Castel Check Valve


The check valves illustrated in this chapter are designed for installation on commercial refrigeration systems and on civil and industrial air conditioning plants that use the following refrigerant fluids: • HCFC (R22), only valves in series 3122 • HFC (R134a, R404A, R407C, R410A, or R507) • HFO and HFO/HFC mixtures (R1234ze, R448A, R449A, R450A, or R452A) belonging to Group 2, as defined in Article 13, Chapter 1, Point (b) of Directive 2014/68/EU, with reference to EC Regulation No. 1272/2008. Furthermore, the same check valves, up to DN 25, that is models 3122/9, 3124N/9, 3125N/9 can also be installed on systems using the following refrigeration fluids: • HFC (R32) • HFO (R1234yf) classified as A2L in the ASHRAE 34-2013 standard, and belonging to Group 1, as defined in Article 13, Chapter 1, Point (a) of Directive 2014/68/EU, with reference to EC Regulation No. 1272/2008. For specific applications with refrigerant fluids not listed above, please contact Castel Technical Department.




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