Brass Extension Nipple kfa² 1/2" (15 mm) model 170-201-98

Brass Extension Nipple kfa² 1/2" (15 mm) model 170-201-98 is a threaded brass fitting intended for extending or adjusting the length of pipe and valve connections in water installations. Manufactured from corrosion-resistant brass, this extension nipple provides a reliable metal-to-metal threaded joint compatible with 1/2" (15 mm) nominal diameter plumbing connections. It is designed for use in domestic and light commercial water systems where a short, robust extension is required to align or join components.

Advantages

The brass construction offers good corrosion resistance and mechanical strength compared with non-metallic fittings, ensuring long service life in potable water systems. The threaded design provides a secure, leak-minimising connection when installed with appropriate sealing materials. Compact dimensions make the fitting easy to install in confined spaces and suitable for adjustments in tight assemblies without the need for complex modifications.

Suitable for

• Extending short sections of 1/2" (15 mm) threaded piping
• Connecting valves, taps or fittings with 1/2" (15 mm) threads
• Adjusting alignment in domestic and light commercial water systems
• Repairs where a small length increase is needed

Key specifications

• Material: brass (corrosion-resistant metal)
• Size: 1/2" (15 mm) nominal diameter
• Connection type: male threaded nipple for threaded fittings
• Typical use: potable water and general plumbing installations
• Form factor: short extension nipple suitable for confined spaces

How to use

Clean the male and female threads before installation to remove debris and old sealing materials. Apply an appropriate thread sealant, such as PTFE tape or thread sealant paste, to the male threads to ensure a watertight joint. Hand-start the nipple into the mating fitting to avoid cross-threading, then tighten with an appropriate wrench until secure; avoid over-tightening to prevent thread damage. Check the assembled joint for leaks and tighten further if necessary following the sealant manufacturer's instructions.

Usage recommendations

Use compatible thread sealing materials and follow local plumbing codes. For installations in concealed or pressurised systems, pressure-test the assembly after installation. Avoid using excessive force during tightening and replace the nipple if signs of wear or corrosion appear.