WAVIN reducer external 20×16 Pexal Tigrit M5 model 4064182 for plastic pipe connection

The WAVIN reducer external 20×16 Pexal Tigrit M5 model 4064182 is a mechanical transition fitting designed to join plastic pipes of different diameters. It provides an external reduction from 20 mm to 16 mm and is intended for use with Pexal Tigrit composite pipe systems. The fitting is suitable for plumbing and heating installations where a secure, metal-reinforced connection between PEX/aluminum composite pipes is required for potable water, underfloor heating circuits, and radiator feeds.

Advantages

This external reducer offers a compact footprint and a straightforward mechanical connection compatible with Pexal Tigrit M5 systems. Its design ensures a consistent outer reduction profile that simplifies alignment and installation in tight spaces. The fitting is intended to maintain a reliable hydraulic seal and mechanical strength when used with the appropriate PEX-aluminium pipe and connection method, reducing the need for complex adapters or additional components.

Suitable for

• Transitioning between 20 mm and 16 mm PEX/aluminum composite pipes
• Potable water distribution lines in residential and commercial buildings
• Underfloor heating manifolds and branch connections
• Radiator feed lines and compact plumbing assemblies

Key specifications

• Connection types: external reducer for Pexal Tigrit M5 composite pipes
• Nominal diameters: 20 mm to 16 mm external reduction
• Material compatibility: PEX/aluminum composite multilayer pipes (Pexal Tigrit)
• Application environment: potable water and heating systems
• Mechanical connection: designed for secure mechanical compression/joint with compatible fittings

How to use

Prepare both pipe ends by cutting them square and deburring the inner and outer edges. Slide the external reducer onto the larger-diameter pipe or position it according to the Pexal Tigrit M5 installation instructions, ensuring full insertion depth and correct alignment. Complete the mechanical joint using the recommended compression or crimping tool and procedure specified for Pexal Tigrit M5 fittings to achieve the intended seal and mechanical retention. Verify the connection visually and conduct a pressure test according to local plumbing standards before placing the system into service.

Usage recommendations

Use the WAVIN external reducer only with compatible Pexal Tigrit M5 pipes and approved installation tools. Follow manufacturer guidelines and local regulations for potable water and heating system installations, including pressure testing and thermal expansion allowances. Avoid using the fitting with incompatible pipe types or connection methods to ensure long-term system reliability.