Danfoss Bi-Flow Filter Driers

Bi-flow filter driers, type DMB/DCB, are for use in liquid lines on heat pumps. Bi-flow filter driers have built-in check valves which ensure that refrigerant liquid always flows through the filter driers from the outer side of the filter core towards the center. Thus all dirt particles are retained irrespective of flow direction. DMB/DCB filter driers ensure fast and effective adsorption of moisture as well as organic and inorganic acids. When building heat pump systems, the use of Biflow filters can, depending on the type of system, save up to ten solder connections. This reduces production costs and the number of potential leakage points.

DCB filter driers
These filters contain a solid core consisting of 3Å Molecular Sieve and activated aluminum oxide. DCB filter driers can be used in heat pumps with HCFC refrigerants and mineral oil, and also with HFC refrigerants and polyolester oil.

Features:

• Optimum flow characteristics and dirt retention
• The check valves are not sensitive to dirt and give minimum restriction, irrespective of flow direction
• Effective dirt removal to 25 μm
• No dirt released by reversing the flow direction
• Available with solder (copper) and flare connections