Emerson Alco 043323 Filter Drier

The Emerson Alco 043323 (Model BFK083S) is a high-performance bi-directional liquid line filter drier specifically engineered for demanding heat pump applications. Featuring a solid core desiccant blend of 75% molecular sieve and 25% activated alumina, this 8 cubic inch unit provides exceptional moisture and acid removal capacity. The internal check valve mechanism is designed to allow full filtration and flow in either direction, which simplifies piping by eliminating the necessity for external check valves during installation. Rated for a 680 PSI max pressure, it is fully compatible with high-pressure R-410A refrigeration systems, as well as CFC, HCFC, and HFC refrigerants. The 3/8" sweat (ODF) connections and rugged steel shell with a corrosion-resistant epoxy powder finish ensure structural integrity. With a 40 micron filtration rating, the BFK083S filter drier delivers reliable protection for compressors and expansion valves, maintaining system cleanliness in both heating and cooling cycles.

• Bi-directional flow operation via integrated internal check valves prevents the need for complex external bypass piping.
• Optimized R-410A compatibility with a high 680 PSIG working pressure rating for modern high-pressure systems.
• Superior contaminant protection featuring a 40-micron filtration level to shield critical downstream components.
• Robust corrosion resistance provided by a durable epoxy powder paint finish, ideal for harsh outdoor environments.
• High-efficiency desiccant core effectively neutralizes harmful acids and captures moisture to prevent system burnout.

Can this filter drier be used on standard AC-only systems?
While optimized for heat pumps where flow reverses, the BFK083S can be used in unidirectional systems; however, the Emerson EK series is typically selected for cooling-only applications for cost-efficiency.

Is the BFK083S compatible with POE oils?
Yes, this solid core filter drier is approved for use with POE oils and is a standard choice for systems utilizing Copeland compressors.

What is the proper orientation for installing 3/8" sweat connections?
Because of the bi-flow design, the unit can be mounted in any position. Ensure proper brazing techniques are used with a wet rag to protect the internal seals and paint finish.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.