Emerson Alco 053043 Filter Drier

The Emerson Alco 053043 (Model STAS4813SV) is a heavy-duty steel suction line filter drier designed for high-capacity commercial refrigeration and air conditioning applications. Engineered for maximum system protection, this take-apart filter drier shell features a 1 5/8" sweat (ODF) connection and utilizes a 48 cubic inch single core (sold separately) to facilitate effective moisture, acid, and contaminant removal. With a 500 PSI maximum working pressure, the STAS-4813SV is optimized for suction line service, providing full-flow fittings that ensure a low pressure drop across the circuit, which is critical for maintaining compressor efficiency and preventing oil return issues. The carbon steel shell is finished with a corrosion-resistant epoxy powder paint, and its solid copper connections simplify the brazing process for field technicians. This replaceable core filter drier is compatible with a wide range of refrigerants, including R-22, R-134a, R-404A, R-410A, and R-507, making it a versatile choice for system clean-up after a burnout or during routine maintenance of HVACR systems.

• Full Flow Fittings: Machined for minimum pressure drop to preserve compressor performance in high-velocity suction lines.
• Rugged Construction: Durable carbon steel shell with an epoxy finish protects against harsh environmental conditions and oxidation.
• Service Flexibility: Take-apart design allows for quick core replacement (moisture vs. burnout cores) without cutting the refrigerant lines.
• Simplified Installation: Features a slotted cover and unique internal hardware to ensure proper core alignment and rapid assembly.
• Integrated Access Valve: Includes a 1/4" Schrader valve for accurate pressure drop monitoring across the core.

Is the filtration core included with the STAS4813SV?
No, this unit is a shell only. You must purchase a compatible 48 cubic inch core, such as the Emerson UK-48 or D-48, depending on whether you need high acid removal or standard moisture capacity.

What is the proper mounting orientation for this suction drier?
For suction line applications, it is recommended to install the shell in a vertical position with the outlet facing down to ensure proper oil return to the compressor.

Can this shell be used on the liquid line?
While the STAS series can technically be used on liquid lines, the SV suffix indicates it is specifically modified and optimized for suction line service with full-flow characteristics.

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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.