KAN-therm pipe reducer 20x16 mm, polypropylene (PP) fitting, model 04108020

KAN-therm pipe reducer 20x16 mm is a polypropylene (PP) fitting designed to create a secure, leak-resistant transition between pipes with 20 mm and 16 mm outside diameters. The fitting is intended for use in plumbing and heating systems where compatibility with PP pipework and reliable joints are required. Its simple geometry and smooth internal surface promote consistent flow and reduce turbulence at the connection point.

Advantages

The polypropylene material offers chemical resistance, low thermal conductivity and long service life in potable water and heating installations. The reducer provides a compact, space-saving connection that simplifies changes in pipe diameter without the need for complex adapters. Its standardized dimensions support easy integration with common PP piping systems and enable secure mechanical or fusion connections depending on installation method.

Suitable for

• Domestic and commercial potable water distribution
• Central heating systems and radiators feed lines
• Underfloor heating manifolds and branch connections
• Renovation projects requiring downsizing of pipe runs

Key specifications

• Material: polypropylene (PP)
• Connection type: reducer for joining different outside diameters
• Compatible pipe diameters: 20 mm to 16 mm
• Typical applications: potable water and heating systems
• Internal surface: smooth to promote flow

How to use

Select the appropriate joining method for your PP piping system — mechanical compression, solvent welding (if applicable for the specific PP type), or heat fusion — and follow manufacturer-recommended procedures for that method. Ensure pipes are cut square, deburred and cleaned before assembly. Insert the 20 mm and 16 mm pipe ends fully into the respective sides of the reducer, secure according to the chosen connection technique, and allow any fusion or curing time required before pressurizing the system. Verify alignment and check for leaks during initial system commissioning.

Usage recommendations

Use this PP reducer only with compatible PP pipe materials and installation methods approved for potable water or heating. Observe local plumbing codes and pressure/temperature limits of the piping system. When in doubt, consult installation guidelines for heat fusion or mechanical fittings to ensure a durable, leak-free connection.