VIEGA Viega 3525 extension 3/4 x 50 mm, pack of 10

VIEGA Viega 3525 extension 3/4 x 50 mm, pack of 10 is a set of ten threaded extensions intended to lengthen pipe or fitting connections in plumbing systems. Each extension provides a standardized 3/4" male thread and a 50 mm nominal length, manufactured in corrosion-resistant copper alloy suitable for water, heating and sanitary installations in residential and commercial environments.

Advantages

The extension's metal construction ensures mechanical strength and reliable thread engagement. Its standardized 3/4" R/Rp thread form enables compatibility with a wide range of fittings and fixtures used in plumbing and heating systems. Supplied as a pack of ten, the product streamlines small installation and repair jobs by providing multiple identical parts in one package.

Suitable for

• Extending pipe runs where additional threaded reach is required
• Connecting fittings and valves with 3/4" female threads
• Residential and light commercial heating systems
• Water supply and sanitary installations
• Repair and maintenance tasks requiring identical replacement pieces

When it may not be suitable

This threaded extension is intended for use where a 3/4" male thread and a 50 mm extension are appropriate. It is not suitable for applications requiring different thread standards, lengths, or non-metallic materials. For installations exposed to aggressive chemical environments or where specific approvals or alternative materials are mandated, another product choice may be required.

Key specifications

• Thread size: 3/4" (male, R / Rp thread form)
• Nominal length: 50 mm
• Material: copper alloy (gunmetal / silicon bronze)
• Finish: bare metal suitable for plumbing installations
• Pack quantity: 10 pieces
• Internal feature: internal polygon for wrench engagement

How to use

Prepare mating threads by cleaning and, if required, applying an appropriate thread sealant or tape compatible with potable water and system materials. Screw the extension into the female thread by hand to engage threads, then tighten using a suitable wrench on the external hex or internal polygon feature until a secure mechanical connection is achieved without over-torquing. After installation, pressure-test the system according to local codes and manufacturer guidance to verify leak-free joints.

What to consider before purchase

• Confirm the thread form and size of the mating fitting is 3/4" R / Rp compatible
• Ensure a 50 mm extension length meets installation clearances and dimensions
• Verify copper alloy material is acceptable for the specific water or heating medium
• Check that a pack of 10 matches project quantities to avoid excess or shortage

Usage recommendations

Use appropriate thread sealing materials approved for potable water if applicable; apply torque within recommended limits and perform a pressure test after installation. Store unused pieces in a dry place to avoid surface corrosion prior to installation.