Compression reducing coupling, polyethylene, PN 6 bar, d. 63 x 40

HDPE compression reducing coupling PN 6 bar, d 63 × 40 is a transition fitting designed for cases where you need to reliably “mate” a Ø63 mm main line with a Ø40 mm section—quickly, neatly, and without any welding. It is a practical solution for installation and repairs: it can be installed on site, requires no special equipment, and helps deliver a leak-tight joint with predictable results.

The fitting is made of high-density polyethylene (HDPE), a material valued for strength, long service life, and resistance to water exposure. The inner surface of the connection is uniform and non-porous, supporting stable flow capacity and reducing the risk of deposit build-up. The design contains no foreign substances that could affect the taste or odor of water, which makes it suitable for potable water systems and engineering lines where media cleanliness is important.

The reliability of the 63×40 transition is achieved through a well-engineered compression design:

Rubber sealing rings provide strong leak resistance and secure tightness at the PN 6 bar working pressure.

The conical tightening mechanism compensates for minor pipe geometry deviations—size differences and ovality up to ±0.5 mm. This is especially convenient when pipes come from different batches or when installation conditions are not ideal: the joint tightens evenly and firmly.

A corrosion-resistant reinforcing ring strengthens the connection and maintains long-term tightness under temperature fluctuations, so the joint remains stable throughout service.

An additional advantage is UV resistance. The fitting is suitable for outdoor pipeline sections, manholes, greenhouse systems, and irrigation networks where components may be exposed to sunlight. UV stability helps reduce the risk of algae and bacteria growth in sunlit areas. The blue/black color makes the fitting easy to spot on site and simplifies maintenance.

Compatibility: suitable for polyethylene and polyethylene terephthalate pipes.

Typical applications for the 63×40 PN 6 reducer:

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

watering and irrigation (Ø63 main line to Ø40 working line);

industrial and domestic high-pressure sewer networks;

fire-fighting pipelines.

If you need a reliable 63×40 compression reducer with fast installation and high leak-tightness, this PN 6 bar coupling is the right choice for durable, stable system operation.