Pipe elbow 90° 16 mm PP-R Alkotest KN9016

Pipe elbow 90° 16 mm PP-R Alkotest KN9016 is a compact 90-degree fitting made from polypropylene random copolymer (PP-R) designed for use with 16 mm diameter PP-R piping. It provides a right-angle change of direction for plumbing, heating and industrial installations and is suitable for systems where corrosion resistance and chemical stability are required. The fitting is made to join pipes of the same nominal diameter and is intended for permanent, solvent-free welded or fusion-joint connections commonly used in potable water and heating circuits.

Advantages

The PP-R construction offers long-term resistance to corrosion and common chemicals encountered in potable water and heating systems, keeping flow paths free from rust and scale. Its standardized 16 mm diameter ensures compatibility with other PP-R components of the same nominal size, enabling reliable fusion or socket welding connections. The simple 90° geometry allows efficient routing of pipes in confined spaces while maintaining consistent internal flow characteristics.

Suitable for

• Domestic and commercial potable water supply lines
• Heating circuits and underfloor heating manifolds
• Small-diameter industrial piping and process lines
• Connections inside compact enclosures, cabinets, and service shafts

Key specifications

• Material: polypropylene random copolymer (PP-R)
• Angle: 90° elbow
• Nominal pipe diameter: 16 mm
• Connection method: fusion/welding (socket fusion or butt fusion as applicable)
• Application temperature range: suitable for cold and hot water systems and heating circuits (refer to system design limits)
• Resistance: corrosion- and chemical-resistant within typical potable water and heating media

How to use

Select the elbow to match 16 mm PP-R piping and prepare the pipe ends by cutting square and removing burrs. Heat the pipe and fitting ends with an appropriate PP-R fusion tool according to the tool manufacturer's instructions, then join the parts at the correct alignment and hold until the joint cools and sets. Allow sufficient cooling time before pressurizing the system. Ensure that all welding is performed by trained personnel and in accordance with local plumbing and building codes.

Usage recommendations

Use compatible PP-R installation tools and follow fusion-welding procedures specified for PP-R materials. Verify system pressure and temperature requirements against the installed components' ratings and allow for thermal expansion in heating circuits. Avoid exposing joints to mechanical stress or tension during curing and use appropriate supports and clamps to prevent sagging or bending at the elbow.