Uponor S-Press fitting with male thread 16 mm × R3/4 (1014534)

Uponor S-Press fitting with male thread 16 mm × R3/4 is a metal press fitting designed to connect a 16 mm plastic or composite press pipe to an R3/4 threaded component or outlet. The fitting accepts a standard press tool profile and provides a sealed transition between press-installed pipework and threaded connections used for valves, adapters or other plumbing components. It is intended for potable water and heating systems where a reliable, pressure-tight connection to a R3/4 threaded part is required.

Advantages

The S-Press design offers a compact metal body that ensures mechanical strength and long-term durability in residential and light commercial systems. Press technology reduces installation time compared with traditional soldering or gluing methods and eliminates the need for open flames. The male thread provides a standard, leak-resistant interface for attaching valves, fittings or devices with R3/4 female threads, enabling straightforward integration into existing threaded components. Materials and construction are suitable for potable water and heating applications, supporting corrosion resistance and stable performance under normal operating conditions.

Suitable for

• Connecting 16 mm press pipe to R3/4 threaded valves and fittings
• Potable water distribution systems in domestic installations
• Central heating and radiator connection points requiring a threaded outlet
• Retrofit work where press piping must mate with existing threaded components

Key specifications

• Compatible pipe nominal size: 16 mm
• Thread type: external male R3/4
• Connection method: press connection on pipe side, threaded on outlet side
• Application: potable water and heating systems
• Material: corrosion-resistant metal suitable for press installation

How to use

Prepare the 16 mm press pipe by cutting squarely and deburring the end. Slide the appropriate press sleeve onto the pipe, insert the pipe fully into the fitting until it seats, and position the press tool jaw over the fitting’s press zone. Complete the press operation following the press tool manufacturer’s instructions and verify the joint visually and, where applicable, with tool confirmation marks. After pressing, thread the R3/4 female component onto the male thread using suitable sealing method for the application (for example, approved thread sealant or PTFE tape where permitted). Conduct pressure testing of the system according to local codes and standards.

Usage recommendations

Use only press tools and jaws that match the fitting profile and manufacturer guidance. Ensure thread sealing products are compatible with potable water or heating media. Follow applicable installation standards and perform pressure and leak tests after assembly before commissioning the system.