Compression reducing coupling, polyethylene, PN 6 bar, d. 75 x 50

HDPE compression reducing coupling PN 6 bar, d 75 × 50 is a reliable fitting for a fast transition from a Ø75 mm pipe to a Ø50 mm pipe in water supply and technical systems. This reducer is in demand when the main line is built with a larger diameter and you need to step down to a smaller working line—without welding, without complex tools, and with guaranteed joint tightness.

The fitting is made of high-quality high-density polyethylene (HDPE). The material is resistant to water exposure and external environmental factors, and the inner surface of the connection is uniform and non-porous—flow remains smooth, the likelihood of deposits is reduced, and the system retains stable flow capacity for longer. The composition contains no foreign substances that could affect the taste or odor of water, making the 75×50 transition suitable for potable water networks and engineering lines where media cleanliness matters.

The key task of any fitting is leak-tightness and long service life, and here both are ensured by several design elements:

Rubber sealing rings provide strong leak resistance and stable operation at PN 6 bar working pressure.

The conical tightening mechanism helps eliminate typical installation imperfections caused by size differences and pipe ovality up to ±0.5 mm. This makes the joint especially “forgiving” in real-world conditions—when pipes come from different batches or have minor geometry deviations.

A corrosion-resistant reinforcing ring maintains long-term tightness and improves stability under temperature fluctuations, which is important for year-round operation.

The fitting is UV-resistant, making it suitable for outdoor pipeline sections, manholes, greenhouse systems, and irrigation lines. UV stability helps reduce the risk of algae and bacteria growth in sunlit areas. The blue/black color is convenient for visual identification and maintenance.

Compatibility: suitable for polyethylene and polyethylene terephthalate pipes.

Typical applications for the 75×50 PN 6 reducer:

mains and distribution in potable and technical water supply systems;

irrigation, watering, and greenhouses (Ø75 → Ø50 transition);

industrial and domestic high-pressure sewer networks;

fire-fighting pipelines and technical lines.

Why it’s a smart choice: you get a 75×50 compression reducer that installs quickly, holds tightness, resists UV and temperature fluctuations, and fits a wide range of tasks—from private properties to industrial sites.