Emerson Alco 049474 Drier Shell

The Emerson Alco 049474, model BTAS521SV, is a high-capacity brass take-apart suction line filter drier shell engineered for heavy-duty commercial refrigeration and HVACR service. Featuring 2 5/8" ODF sweat connections, this shell is specifically designed to facilitate replaceable core or filter cartridge installation, providing the versatility required for both permanent protection and temporary system clean-up following a compressor burnout. The corrosion-resistant brass body and stainless steel bolts ensure long-term structural integrity in demanding environments, supporting a maximum working pressure of 400 PSI.

For the veteran technician, the BTAS521SV offers a 40-micron filtration rating to stop fine debris before it reaches the compressor. With a 5-inch shell size, it accommodates high-flow requirements with minimal pressure drop across the suction line. This model uses a special internal cartridge design exclusive to the brass shell series, ensuring a tight seal and reliable moisture and acid removal when paired with the appropriate Alco filter drier cores. Its take-apart design allows for rapid media replacement without breaking the brazed line connections, making it the industry standard for suction line service.

• Universal Compatibility: Optimized for use with CFC, HCFC, and HFC refrigerants including R-22, R-404A, and R-507.
• Service Efficiency: The take-apart filter drier design streamlines maintenance, allowing for quick core swaps during routine HVAC repair or system evacuation.
• Rugged Reliability: Heavy-duty brass construction eliminates the risk of external rusting and provides a robust housing for suction line filters.
• Full Flow Fittings: Engineered to maintain system efficiency by reducing restriction in the refrigerant suction line.

• Which cores are compatible with the BTAS521SV? This shell is designed for BTAS-5 series drier shells and typically utilizes A5F or A5F-D replaceable cores for maximum desiccant volume and filtration area.
• Can this be used in the liquid line? No, the BTAS521SV is strictly for suction line service. Using suction filter cores in liquid line applications can lead to internal system damage.
• What is the proper flow direction? Always follow the arrow stamped on the shell; the side connection must be the inlet to ensure proper internal core support and prevent rupture.

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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.