Angle fitting Herz Kolano 20x2–Rp3/4 with external thread P 7120 12

Herz Kolano P 7120 12 is a 90° angle fitting designed for plumbing and heating systems. It combines a 20x2 mm tube connection with an Rp3/4 external (male) threaded end to enable a compact, space-saving directional change and secure threaded coupling between a copper or similar tube and a threaded component. The fitting is intended for installation where a right-angle connection with a male thread is required in water and central heating circuits.

Advantages

The angle fitting provides a reliable mechanical transition from a 20x2 tube to an Rp3/4 male thread, offering a compact footprint that helps save installation space. Its 90° geometry facilitates directional changes without additional adapters, and the threaded end ensures a standardised connection to valves, radiators, or other plumbing components. The design supports straightforward assembly in confined areas while maintaining a tight threaded joint for system integrity.

Suitable for

• Water supply lines requiring a tube-to-thread elbow connection
• Central heating installations connecting radiators, valves, or manifolds
• Retrofit or repair works where a compact angled male-threaded fitting is needed

Key specifications

• Tube connection size: 20 x 2 mm
• Thread type and orientation: Rp3/4 external (male) thread
• Angle: 90° elbow
• Application medium: potable water and central heating fluids
• Function: tube-to-thread directional coupling for plumbing and heating systems

How to use

Prepare the tube by cutting squarely to length and deburring the inner and outer edges to ensure a proper mechanical fit. Insert the 20x2 tube end into the fitting according to the manufacturer's recommended joining method for the material (e.g., press-fitting, soldering, or compression as applicable to the specific Herz product variant and installation practice). Thread the Rp3/4 male end into the corresponding female thread using appropriate sealing method for the system (such as thread sealant tape or approved sealant) and tighten to the torque recommended for the mating component to avoid overtightening. After assembly, pressure-test the circuit following local regulations and manufacturer guidance to confirm leak-free operation.

Usage recommendations

Use compatible joining techniques and approved sealants for potable water and heating systems. Verify material compatibility between the tube, fitting, and mating components, and follow applicable installation standards for pressure testing and thermal expansion management.