Category: ODF & SAE CONNECTIONS
Surface treatments applicable: no
The check valves allow to avoid unwanted inversions of the direction of flow of the refrigerant inside the refrigeration system. They are characterized by a low differential opening pressure.
The check valves are designed to be installed on refrigeration and air-conditioning systems for domestic and industrial use. It’s possible to use them with all the refrigerant fluids of group II (as defined in Article 13, chapter 1, Point b of Directive 2014/68/EU, with reference to EC Regulation No.1272/2008) and they are defined as “pressure equipments”, as described in Directive 2014/68/UE, Art.2 point 5 and Art.4 point 1.C.
At the start-up of circuit is good to be sure that there are not dust or contamination inside the pipes. The arrow direction on body valve should be in accord with the flow direction inside the circuit. All mounting positions are accepted, even if is better to be in accord with the vertical axis. For 33100 series is accepted only the installation with orizontal axis. The braze welding of copper tubes should made by special alloy, with low melting point. The flame should not be directed toward the seals or body of valve, because it can damage the valve in consequence of overheating.