Parker Hannifin 470049 Suction Line Accumulator ODF - VA355S 5/8

The Parker Hannifin VA355S is a vertical suction line accumulator designed to protect refrigeration and air conditioning compressors from liquid refrigerant slugging during system operation. This essential component prevents liquid refrigerant from entering the compressor, eliminating damage to valves, pistons, connecting rods, and bearings caused by liquid floodback.

Key Features:

• 5/8" ODF (Outside Diameter Flare) sweat connections for easy installation
• 55 pound R-22 refrigerant capacity for adequate system protection
• Compact 3" diameter design fits in tight installation spaces
• 15" overall height provides optimal liquid separation
• Internal metering orifice returns trapped liquid and oil to compressor at controlled rate
• Vertical mounting orientation for proper operation
• Steel shell construction with durable finish
• Compatible with R-22, R-134a, R-404A, R-407C, R-410A, and other common refrigerants

The VA355S accumulator installs in the suction line just before the compressor and temporarily holds liquid refrigerant that returns through the suction line during start-up or operational transients. The internal design allows refrigerant vapor to pass through while trapping liquid, which is then metered back to the compressor along with any accumulated oil. This protection is critical for air conditioning, heat pump, and refrigeration systems that experience intermittent operation or variable loading conditions.