Emerson Alco 043327 Filter Drier

The Emerson Alco 043327 BFK-084S is a premium bi-flow filter drier engineered specifically for heat pump applications and reversible refrigeration cycles. Featuring a 1/2" ODF solder connection, this solid-core drier utilizes a specialized internal check valve assembly to ensure filtration and dehydration in both flow directions without the risk of releasing trapped contaminants back into the system. The BFK-084S refrigerant drier is optimized for high-moisture and acid-removal capacity, making it compatible with HFC, HCFC, CFC, and mineral or POE lubricants. Its steel shell construction provides 500-hour salt spray resistance, while the 8 cubic inch desiccant core provides low pressure drop performance for high-efficiency refrigeration system protection. For technicians performing liquid line filter drier replacement, this unit offers reliable protection against copper plating and compressor failure caused by moisture or acid buildup.

• Internal Check Valve Logic: Directs flow through the desiccant core in either direction, eliminating the need for external check valves in heat pump circuits.
• High Acid Neutralization: Formulated desiccant blend protects the compressor from chemical breakdown and moisture-induced burnout.
• Rugged Durability: Epoxy powder coating provides superior corrosion resistance in harsh outdoor environments.
• Precise Sizing: 1/2" sweat connections allow for high-integrity joints and minimize leak potential compared to flare fittings.

Does the BFK-084S support high-pressure refrigerants like R-410A?

Yes, this unit is rated for a Maximum Working Pressure (MWP) of 680 psig, making it suitable for modern high-pressure systems including R-410A and R-134a.

How the bi-flow design differ from a standard ADK series drier?

Unlike standard unidirectional driers, the BFK series uses specialized internal flow control to ensure the refrigerant is filtered regardless of whether the system is in heating or cooling mode.

Is this drier compatible with POE oils used in modern HFC systems?

The desiccant core is fully compatible with both Polyolester (POE) and Mineral oils, ensuring effective moisture extraction without stripping additives from the lubricant.

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.