Elbow fitting THERMAFLEX Kolano PE 15/9 (model 3526-009015-030) for polyethylene piping

THERMAFLEX Kolano PE 15/9 elbow fitting (model 3526-009015-030) is a polyethylene connector designed to join and change direction between PE pipes with nominal diameters of 15 mm and 9 mm. It creates a compact 90° bend for low-pressure fluid distribution systems, enabling repair, extension or branching of polyethylene lines in residential and light-commercial installations. The fitting is intended for use with compatible PE tubing and provides a straight-forward mechanical connection where a change of pipe diameter and direction is required.

Advantages

The polyethylene construction offers corrosion resistance, chemical inertness and flexibility appropriate for potable water and irrigation circuits within its pressure rating. Its compact 90° geometry allows space-saving installation in tight sections while maintaining a smooth internal profile to minimize flow disruption. The fitting is lightweight, simple to handle and suitable for quick replacement or retrofitting in existing polyethylene piping runs.

Suitable for

• Repairing damaged sections of PE piping in household water supply and irrigation systems
• Extending polyethylene lines where a diameter transition from 15 mm to 9 mm is needed
• Creating compact 90° turns in low-pressure distribution and drainage layouts
• Retrofit and small commercial installations with polyethylene tubing

Key specifications

• Material: polyethylene (PE)
• Connection configuration: 90° elbow joining 15 mm to 9 mm nominal PE pipe
• Application pressure: suitable for low-pressure fluid distribution systems (follow system specifications)
• Typical uses: potable water, irrigation, and other non-pressurized or low-pressure fluid lines
• Design: compact 90° bend to minimize space requirements

How to use

Ensure both PE pipes are compatible in wall type and nominal dimension before installation. Prepare pipe ends by cutting square and deburring. Push the 15 mm and 9 mm PE pipes fully into the respective ends of the elbow fitting according to the manufacturer's insertion depth recommendations; secure connections by the appropriate method for the fitting and system (for example, push-fit, compression or heat-fusion techniques if applicable to the specific variant). Verify alignment and ensure the elbow forms the intended 90° direction change. After installation, perform a pressure test of the section according to local regulations and system requirements.

Usage recommendations

Use the elbow fitting only within the intended pressure and temperature limits of the polyethylene piping system. Match pipe wall type (e.g., PE100, PE80) and installation method to ensure long-term performance. Avoid exposure to direct UV without appropriate protection and prevent mechanical loads or impacts at the joint during and after installation.