Reducer fitting KAN-therm 50x40 mm PP model 04108051

KAN-therm PP reducer 50x40 mm is a thermoplastic pipe fitting designed for creating a secure transition between two pipe runs of different diameters. Manufactured from polypropylene, this reducer fitting provides a corrosion-resistant and chemically inert connection suitable for plumbing, heating and potable water distribution systems. The 50 mm to 40 mm reduction allows integration of larger and smaller diameter pipes within the same installation while preserving flow characteristics and mechanical integrity.

Advantages

The polypropylene construction offers good chemical resistance and low weight compared with metallic fittings, reducing stress on supports and joints. The design ensures reliable sealing and dimensional stability under typical operating temperatures for domestic and commercial heating and plumbing. Its smooth internal surface helps minimise pressure losses and scaling, while compatibility with standard joining methods simplifies installation and maintenance.

Suitable for

• Domestic and commercial plumbing systems
• Central heating and radiators connections
• Cold and hot water distribution (within material temperature limits)
• Pipe networks requiring corrosion-resistant thermoplastic fittings

Key specifications

• Material: polypropylene (PP)
• Connection sizes: 50 mm to 40 mm diameter
• Function: concentric reducer for diameter transition
• Surface: smooth internal bore to reduce scaling
• Typical applications: potable water, heating circuits, general plumbing

How to use

Select the reducer to match the outside diameters of the pipes to be connected and verify compatibility with the chosen joining method (e.g., solvent welding, heat fusion, or mechanical connection depending on system design). Prepare pipe ends by cutting square and cleaning the mating surfaces. Insert pipes into the respective ends of the fitting to the recommended insertion depth and complete the joint according to manufacturer or system installer guidance to ensure a leak-tight connection. After assembly, pressurise and inspect the system in accordance with applicable testing procedures.

Usage recommendations

Confirm that operating temperatures and pressures remain within the limits appropriate for polypropylene fittings and follow local regulations for potable water or heating installations. Store fittings away from direct sunlight and prolonged UV exposure before installation. For long-term reliability, conduct periodic inspections of joints and supports and replace any components showing signs of deformation or damage.