External reducer/pipe adapter No name R9063 90/63 mm (reducing coupling)

External reducer/pipe adapter No name R9063 90/63 mm is an external reducing coupling designed to connect rigid pipes with outer diameters of 90 mm and 63 mm. The adapter provides a straightforward mechanical transition between larger and smaller diameter lines in plumbing and drainage systems, allowing continuity of flow while maintaining a compact profile. It is intended for use with compatible rigid pipe materials where an external coupling is required.

Advantages

The external reducer offers a simple, space-efficient solution for changing pipe diameter without the need for complex fittings. Its reducing coupling design ensures a secure join between the two pipe sizes and facilitates installation in confined or linear runs. The adapter minimizes the need for additional components and provides a reliable physical connection for rigid pipework.

Suitable for

• Connecting rigid drainage pipes when transitioning from 90 mm to 63 mm outer diameter
• Plumbing systems requiring an external reducing coupling
• Retrofit or repair work where replacing full pipe sections is impractical

Key specifications

• Type: external reducer (reducing coupling)
• Connection sizes: outer diameter 90 mm to outer diameter 63 mm
• Application: plumbing and drainage transitions
• Compatibility: for use with rigid pipe materials of corresponding outer diameters
• Form factor: one-piece mechanical coupling for external installation

How to use

Slide the larger end of the external reducer onto the pipe with 90 mm outer diameter and the smaller end onto the 63 mm pipe so that both pipes sit fully within the coupling. Ensure surfaces are clean and free of debris before assembly to promote a tight fit. Depending on the pipe material and installation standards, secure the joint with clamps, sealant, or mechanical fasteners as appropriate. Verify alignment and flow direction, then test the connection under normal system conditions to check for leaks.

Usage recommendations

Use the adapter only with rigid pipes of matching outer diameters and follow local plumbing codes. Inspect the coupling and pipe ends for damage before installation, and apply appropriate sealing or fastening methods for the specific pipe material to ensure a durable connection.