Reducer internal D32/50 short white plumbing fitting by MAGNAPLAST, model 420413

MAGNAPLAST internal reducer D32/50 short is a white plastic plumbing fitting designed to join pipes with internal diameters of 32 mm and 50 mm. Its compact, short-body design allows secure transitions between different pipe sizes where axial space is limited. The fitting is intended for use with compatible standard plastic pipe systems and provides a straightforward mechanical connection to maintain flow continuity in water supply, drainage, or ventilation runs.

Advantages

The short axial length reduces installation depth and simplifies fitting in confined cavities. Molded in white plastic, the reducer offers corrosion resistance and low maintenance compared with metal alternatives. Its dimensioned internal profiles ensure a stable mechanical fit and help maintain alignment between connected pipes. The design facilitates quick integration into existing lines without the need for complex adapters.

Suitable for

• Transitions between 32 mm and 50 mm internal diameter plastic pipes
• Indoor installations with limited axial space
• Water supply and distribution systems using plastic piping
• Drainage and ventilation ducts requiring size reduction

Key specifications

• Material: white plastic suitable for plumbing use
• Connection type: internal reducer for pipe-to-pipe joining
• Compatible internal diameters: 32 mm and 50 mm
• Design: short axial length for compact installations
• Application areas: water supply, drainage, ventilation

How to use

Prepare pipe ends by ensuring they are clean, free of burrs and cut square. Insert the smaller and larger pipes into the corresponding ends of the reducer until fully seated, ensuring proper alignment. Secure connections according to the pipe system’s joining method — for example, using solvent welding, elastic seals or mechanical clamps as appropriate for the pipe material and local regulations. Verify that the joint is sealed and that the reducer is not under undue mechanical stress from misalignment or bending.

Usage recommendations

Use the reducer in environments compatible with plastic fittings and follow the pipe manufacturer’s instructions for joining methods and maximum operating pressures. Avoid excessive bending or torque at the joint and inspect connections after initial pressurization or first use.