Brass reduction coupling TECE 20×16 mm, female/male plumbing fitting

TECE brass reduction coupling 20×16 mm is a female-to-male plumbing fitting designed to connect pipes or tubes with different diameters. Manufactured from brass for enhanced corrosion resistance and mechanical stability, this coupling provides a compact and reliable transition from a 20 mm line to a 16 mm line. It is suitable for potable water supply and heating systems and intended for use in repair, renovation, and new installation projects that require a change of pipe diameter while maintaining leak-tight performance.

Advantages

The brass construction ensures durability and resistance to corrosion, while the female/male connection design simplifies installation and offers a secure threaded joint. The compact size minimizes space requirements in confined plumbing runs. Brass material also provides good thermal and mechanical performance under typical water supply and heating conditions.

Suitable for

• Domestic and commercial potable water supply lines
• Central heating and radiator connections
• Repair and renovation of existing plumbing where diameter reduction is needed
• Installation work in tight spaces requiring compact fittings

Key specifications

• Material: brass for corrosion resistance
• Connection type: female to male threaded coupling
• Dimensions: transition from 20 mm to 16 mm
• Application: water supply and heating systems
• Form factor: compact inline reduction fitting

How to use

Prepare pipe ends by cutting square and deburring to ensure proper seating. Thread tape or appropriate sealing compound may be applied to the male thread as required by local practice. Hand-tighten the coupling onto the male thread and finish with suitable tools to the torque recommended for brass fittings, avoiding excessive force that can damage threads. Ensure alignment of the 20 mm and 16 mm pipes, then pressure-test the system according to applicable standards before commissioning.

Usage recommendations

Use the coupling only within the specified temperature and pressure limits of the system, and verify compatibility of connected pipe materials. For potable water installations, follow local regulations for sealing methods and installation practices. If uncertain about torque or sealing materials, consult installation guidelines or a qualified plumbing professional.