Alkotest K9025 KOLANKO 90 FI25 polypropylene elbow 90° Ø25 mm

Alkotest K9025 KOLANKO 90 FI25 is a polypropylene 90° elbow with a nominal diameter of 25 mm (Ø25). The fitting is intended for connecting two sections of PP pipe at a right angle in plumbing and piping systems. It is suitable for potable water and general plumbing installations where a corrosion‑resistant, chemically stable and lightweight join is required. The product name and type identify the geometry and material: a 90° elbow produced in polypropylene for standard 25 mm pipe runs.

Advantages

The polypropylene construction provides chemical resistance, low weight and resistance to scaling, reducing long‑term maintenance. The right‑angle geometry enables compact changes of direction in pipe runs and space‑efficient installation. The smooth internal surface supports steady flow and decreases the risk of deposits. The fitting is compatible with common PP joining methods and offers dimensional stability across typical temperature ranges for cold and warm water plumbing.

Suitable for

• Domestic potable water distribution systems
• General plumbing and sanitary installations
• Residential and light commercial pipe routing where 90° directional changes are required
• Repair or extension of existing polypropylene piping networks

Key specifications

• Material: polypropylene (PP)
• Angle: 90° elbow
• Nominal diameter: 25 mm (Ø25)
• Application: potable water and general plumbing
• Flow characteristic: smooth internal surface to reduce deposits
• Physical properties: lightweight and corrosion‑resistant

How to use

Prepare pipe ends by cutting squarely and removing burrs; ensure pipe outer diameter matches the fitting nominal size. Join the elbow to PP pipe using the appropriate method for the system—heat fusion, socket welding or a compatible mechanical joint—following manufacturer or local plumbing standards. Allow welded joints to cool and inspect connections for alignment and tightness. Test the assembled piping under appropriate pressure and inspect for leaks before putting the system into regular operation.

Usage recommendations

Use within the intended temperature and pressure ranges for polypropylene plumbing. Avoid exposure to aggressive organic solvents or prolonged UV radiation without protection. When installing in concealed locations, ensure access or proper documentation of joint types and positions for future maintenance.