Reducer fitting 50/40/32 straight R 543, No name (HP/R543)

Straight reducer fitting R 543 is designed to connect three pipe sections with stepped diameters 50 mm, 40 mm and 32 mm in a linear arrangement. The fitting provides a secure transition between larger and smaller pipe runs and is intended for use in plumbing and HVAC systems where a controlled reduction of flow diameter is required. It is compatible with pipes and connectors of matching dimensions and appropriate materials.

Advantages

The reducer fitting offers a compact, straight-line reduction from 50 to 40 to 32 mm, simplifying installation where space and alignment require a linear connection. Its stepped design ensures a predictable change in cross-sectional area to maintain flow characteristics. The part is versatile for use with various piping materials when proper joining methods are applied and allows for straightforward integration into existing runs without complex adapters.

Suitable for

• Domestic and commercial plumbing systems requiring diameter transitions
• HVAC duct or piping reductions in ventilation and heating circuits
• Retrofit or repair jobs where stepped reduction from 50→40→32 mm is needed

Key specifications

• Straight reducer type with three stepped connection sizes: 50 mm → 40 mm → 32 mm
• Linear (in-line) configuration for direct pipe alignment
• Designed for mechanical or solvent-welded connections depending on material compatibility
• Compact footprint to minimize installed length where space is limited

How to use

Select pipes and joining methods compatible with the fitting material and the system (mechanical couplings, solvent weld, or appropriate seals). Prepare pipe ends by cutting squarely and deburring. Slide or align the pipes into the matching 50 mm, 40 mm and 32 mm ends of the reducer ensuring full insertion to the stop or specified depth. Complete the joint using the recommended connection technique for the pipe material, and verify alignment and support to avoid strain on the fitting.

Usage recommendations

Confirm material compatibility and pressure/temperature limits of the entire piping system before installation. Support connected pipe runs near the reducer to prevent stress on joints, and test the system for leaks after assembly following applicable codes and standards.