Vulkan Lokring GmbH / American Vulkan Lokring Refrigerator LOKRING 8/2 NR Al 00 aluminum reducer coupling L13005650

Genuine LOKRING aluminum refrigerant-tubing reducer coupling for joining an 8 mm (approximately 5/16-inch / 0.315-inch) tube to a 1.9–2 mm (approximately 0.075–0.079-inch) tube. It is used in sealed refrigeration systems.

Is This the Right Part?

Common Symptoms

• Reduced cooling caused by refrigerant loss from a leaking connection
• Visible oily residue near the coupling or connected tubing
• A visibly loose, deformed, corroded, or damaged coupling or tube end

Check Before Replacing

• With the appliance unplugged and without opening the sealed system, visually inspect the coupling and nearby tubing for damage, deformation, corrosion, or oily residue.
• Verify that the connected tube outside diameters are approximately 8 mm and 1.9–2 mm and that the fitting is the aluminum 8/2 NR Al 00 version.
• Do not diagnose a refrigerant leak from cooling symptoms alone; sealed-system leak testing should be performed by a qualified refrigeration technician.

Pro Tip

Part Details

Key Features

• Straight aluminum reducing connector, Type 00
• 8 mm to 1.9–2 mm tube-size combination
• Suitable for aluminum-to-aluminum, aluminum-to-copper, and aluminum-to-steel tubing connections
• Manufacturer-listed temperature range of -50°C to 150°C (-58°F to 302°F)
• Manufacturer-listed maximum operating pressure of 50 bar (720 psi)
• Minimum supported tube wall thickness of 0.5 mm

Installation Notes

• This part is used in a sealed refrigerant system; installation requires sealed-system service, including refrigerant recovery and recharge as applicable.
• Use only with tubing matching the specified 8 mm and 1.9–2 mm outside diameters and the applicable supported material combination.
• Follow the manufacturer’s LOKRING Type 00 and capillary-reducer assembly instructions rather than improvising the joining procedure.
• Have the work performed by a qualified refrigeration technician.