IBP Kolano Conex Gw 18-1/2 plumbing elbow F031020403, 18 mm to 1/2 in connection

IBP Kolano Conex Gw 18-1/2 plumbing elbow F031020403 is a 90° pipe fitting designed to join an 18 mm tube to a standard 1/2" threaded connection. Intended for use in water supply and heating systems, the elbow adapts rigid and soft tubing such as copper or PEX to 1/2" pipe threads, enabling a compact directional change while maintaining a sealed connection suitable for pressurized domestic plumbing.

Advantages

The fitting combines a compact 90° change of direction with a threaded 1/2" connection for easy integration into existing pipe runs. Its geometry minimizes flow disturbance at the junction and supports mechanical stability when properly installed. The product is compatible with common domestic plumbing materials and is intended to provide a reliable joint for water and heating installations when matched with appropriate sealing methods.

Suitable for

• Connecting 18 mm copper tubing to 1/2" threaded valves and fittings
• Adapting PEX or similar polymer tubing to standard 1/2" pipe threads
• Creating 90° directional changes in domestic water supply and heating circuits
• Repairing or modifying existing plumbing runs where a compact elbow is required

Key specifications

• Connection types: 18 mm tube to 1/2" female/male threaded connection
• Angle: 90° elbow
• Intended media: potable water and heating fluids
• Compatible tube materials: copper, PEX and similar rigid or soft tubing
• Typical installation environment: domestic water supply and heating systems

How to use

Prepare the 18 mm tube by cutting squarely and deburring the end. Ensure the 1/2" threaded counterpart is clean and free of old sealant. Fit the tube end into the elbow according to the manufacturer’s connection method (push-fit, compression or soldering as applicable) and tighten the 1/2" threaded joint using appropriate thread sealant or tape if required. Verify alignment for the 90° change and secure adjacent pipe supports to reduce mechanical stress on the joint. Pressure-test the system after installation to confirm there are no leaks.

Usage recommendations

Match the elbow to compatible tube material and diameter and use approved sealing methods for 1/2" threads. Follow local plumbing codes and manufacturer guidelines for installation, allowable pressure and temperature limits, and conduct a pressure test after assembly to ensure leak-free operation.