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What is the structural difference in the filter drier used in CFC and HFC appliance?

April 26, 2017appliance CFC drier filter HFC structural Used

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What is the structural difference in the filter drier used in CFC and HFC appliance?

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XH5 can be used for R12 & HC systems; XH7 and XH9 are used for R134a systems. These are molecular sieves, higher the number following XH indicates a newer development and is also indicative of higher hydrated attrition strength. For a given quantity of molecular sieve XH7 or XH9 will have more surface area than XH5 to adsorb water.