Straight coupling Herz 26x3–Rp1 with external thread P 7026 13

Herz straight coupling 26x3–Rp1 with external thread P 7026 13 is a metal connector designed for joining or extending piping runs in heating and plumbing systems. It is manufactured to fit pipes with an outer dimension of 26x3 mm and provides an external Rp1 thread interface for mechanical connection to compatible threaded fittings. The coupling is intended for use where a durable, metal-to-metal joint is required in residential or commercial installations.

Advantages

The coupling offers a compact and robust metal construction that ensures mechanical strength and resistance to typical pressures encountered in heating and plumbing systems. Its external Rp1 threaded end simplifies connection to threaded valves, fittings or adapters without the need for specialized joining tools. The design is compatible with standard 26x3 mm pipe dimensions, promoting straightforward installation and reliable sealing when used with appropriate sealing methods.

Suitable for

• Connecting two sections of 26x3 mm metal pipe in heating distribution.
• Extending existing 26x3 pipe runs in plumbing installations.
• Transitioning between plain-end 26x3 pipe and Rp1-threaded fittings or valves.
• Residential and commercial central heating systems requiring mechanical threaded joints.

Key specifications

• Pipe compatibility: 26x3 mm (outer diameter x wall thickness).
• Thread type: external Rp1 (male threaded connection).
• Material: metal construction suitable for plumbing and heating use.
• Function: straight coupling for joining or extending pipe runs.

How to use

Prepare pipe ends by cutting square and deburring to ensure a clean fit. Slide the coupling onto the plain end of the 26x3 pipe and engage the external Rp1 thread with the mating threaded fitting or valve. Use suitable sealing material or tape on the thread as required by the installation standards to achieve a leak-tight joint. Tighten to the torque recommended for metal threaded fittings in your local codes or installer guidance, avoiding over-tightening that could damage the thread or deform the pipe.

Usage recommendations

Use the coupling only with pipes and fittings that match the specified 26x3 dimensions and Rp1 thread standard. Inspect threads and contact surfaces for cleanliness and damage before assembly. Follow relevant local regulations and industry best practices for sealing, torque, and pressure testing after installation.