Compression reducing coupling, polyethylene, PN 6 bar, d. 50 x 40

HDPE compression reducing coupling PN 6 bar, d 50 × 40 is a transition fitting designed for a reliable connection between Ø50 mm and Ø40 mm pipes in water supply, irrigation, and technical networks. It is a convenient solution when you need to properly “mate” a main line with a smaller-diameter section while maintaining leak-tightness, stable flow, and fast installation without welding.

The product is made of high-quality high-density polyethylene (HDPE)—a strong material resistant to water exposure and external environmental factors. The fitting’s inner surface is uniform and non-porous, which reduces the likelihood of deposits and helps maintain consistent pipeline flow capacity. The material composition contains no foreign substances that could affect the taste or odor of water, making the coupling suitable for potable water networks and engineering circuits where media purity is important.

The design is rated for PN 6 bar working pressure and provides a high level of tightness through several elements:

Rubber sealing rings create a firm contact and reliably protect against leaks.

The conical tightening mechanism compensates for size differences and pipe ovality up to ±0.5 mm, eliminating typical installation imperfections and improving predictability even when pipes come from different batches.

A corrosion-resistant reinforcing ring strengthens the joint and ensures long-term tightness under temperature fluctuations, keeping the connection stable over prolonged service.

The fitting is UV-resistant, making it an excellent choice for outdoor pipeline sections, manholes, greenhouse systems, and irrigation applications. UV stability helps prevent unwanted biological processes (including algae and bacteria growth) in sunlit areas. The blue/black color is convenient for visual identification and looks neat in assembled systems.

Compatibility: suitable for polyethylene and polyethylene terephthalate pipes.

Typical applications for the 50×40 PN 6 reducer:

potable and technical water supply (private homes, facilities, distribution lines);

irrigation and watering networks (Ø50 main line to Ø40);

industrial and domestic high-pressure sewer networks;

fire-fighting pipelines.

If you need a dependable 50×40 HDPE compression fitting with fast installation, high leak-tightness, and strong resistance to external factors, this PN 6 bar coupling is a practical solution for pipeline installation and repair.