Telescopic Drain Valve DUKA type 450 DB Ø105 mm, adjustable 260–400 mm, grey/white

The Telescopic Drain Valve DUKA type 450 DB Ø105 mm with adjustable length 260–400 mm is a plumbing fitting designed to provide a sealed, adaptable connection between sanitary fixtures and drainage systems. Finished in grey and white, this telescopic valve accommodates varying installation depths and helps align the outlet of sinks or washbasins with existing waste pipes. It is intended for standard household and commercial sanitary installations where a reliable, adjustable drainage connection is required.

Advantages

This telescopic drain valve offers adjustable length to bridge gaps between fixture outlets and drain openings without the need for additional pipe cutting or adapters. The Ø105 mm connection diameter matches common waste fittings, and the construction provides a watertight seal under normal operating conditions. The neutral grey/white color blends with typical sanitary fixtures while the compact design facilitates installation in confined cabinet or vanity spaces.

Suitable for (tasks / use cases)

• Connecting washbasins and sinks to existing drainage pipes where outlet depth varies
• Plumbing repair and renovation tasks that require a length-adjustable waste connection
• Installations in bathrooms, utility rooms, and small commercial wash areas
• Situations requiring a quick, on-site adjustment without custom pipe cutting

When it may not be suitable

This telescopic drain valve is intended for standard sanitary drainage systems and may not be suitable for applications requiring unusually high chemical resistance, extreme temperatures, or non-standard pipe diameters. It is not designed to replace full waste systems where rigid alignment and structural support are required over long runs.

Key specifications

• Connection diameter: Ø105 mm
• Adjustable length range: 260–400 mm
• Colour: grey/white
• Application: sanitary drainage for sinks and washbasins

How to use

Measure the distance between the fixture outlet and the existing drainage pipe to determine the required extension within the 260–400 mm range. Compress or extend the telescopic body to the correct length, align the Ø105 mm end with the fixture waste outlet and the other end with the drainage pipe, and secure connections according to local plumbing practice—typically by pushing the ends into matching fittings and checking seals. After installation, run water to verify there are no leaks and adjust seals or alignment if necessary.

What to consider before purchase

• Confirm the fixture and drain connection diameter is Ø105 mm to ensure compatibility
• Verify required installation depth falls within the 260–400 mm adjustable range
• Check material compatibility with local plumbing codes and the expected chemical or temperature exposure
• Ensure access space for installation and final maintenance within cabinetry or under-sink areas

Usage recommendations

For reliable performance, fit the valve with appropriate gaskets or sealing rings, avoid overextending beyond the specified range, and inspect seals periodically for wear. When in doubt about alignment or load-bearing requirements, consult a qualified plumber to confirm the telescopic drain valve is suitable for the intended installation.