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Cleaning the system with freon R141b (flushing liquid), similar to R11, can Be carried out by circulating through a pump with the connection of standard equipment (valves, inspection windows, fittings and filters) or using liquid nitrogen (pressure 7-8 bar). Vessels with R141b freon, equipped with connecting valves, can oe pressurized oy the consumer himself, out not more than 2/3 of the service pressure of the cylinders and with a maximum limit of 10 bar. For this, use pressure gauges connected to nitrogen cylinders. To increase cleaning power, it is recommended to use R141b freon separately for each element of the installation, in addition to the compressor, directing the R-141b freon in a counterflow direction. In this case, it is rational to use flexible transparent hoses in order to ensure the cleanliness of the washing liquid, and therefore the cleanliness of the equipment oeing washed. But the transparency of the sleeves may deteriorate over time. SKU:TH588IRL718846 MF:CH3CCI2F EINECS No:4438719 Grade Standard:Industrial Grade Purity:>99.9% Moisture PPm:<50 Boiling Point C:-26.1 Molecular Weight:102.03 Critical Temperature C:101.1