311 Irish Compression Straight Coupler (Equal)

The 311 Male Straight Coupler is a high-quality brass fitting used to connect Irish Imperial pipe to a female threaded component of the same nominal size. This fitting features a standard compression connection on one end and a male BSP thread on the other. Manufactured for the Irish market to IS EN 1254-2 standards, it provides a precision fit for Irish copper and PEX pipe systems. It is an ideal solution for connecting pipework directly to valves, pumps, and other threaded plumbing fixtures, providing a secure and leak-proof mechanical joint without the need for soldering.

Key Features

• Manufactured to IS EN 1254-2 standards

• High-grade durable brass construction

• Equal sizing for standard pipe-to-thread connections

• Compatible with Irish Imperial copper and PEX barrier pipe

• Suitable for domestic, commercial, and industrial heating and water systems

• No soldering required for installation

Technical Note

These are Irish Imperial fittings. The compression end is designed specifically for Irish pipe diameters and is not interchangeable with UK or European metric fittings. When installing the threaded male end, the use of a suitable thread sealant or PTFE tape is recommended to ensure a watertight seal. If using with PEX or Qualpex pipe, always use the correct size pipe insert or liner.

Compression fittings are sized and described by the threaded side first, followed by the pipe diameter.