Elbow - pipe/pipe - 40x40; PE FIV.07702

Product detailed description

This elbow is commonly used in residential and commercial heating and plumbing systems to create angular connections between polyethylene pipes of the same diameter. It is particularly suited for applications requiring reliable connections under varying thermal conditions. Installers working on underfloor heating, domestic hot water distribution or irrigation systems will find this fitting suitable for ensuring leak-free joints in flexible PE piping systems.

The design allows for secure mechanical coupling without welding, which is essential in installations where flexibility and ease of maintenance are required. The fitting is often used in conjunction with clamping rings and sealing elements to ensure tightness and long-term durability. It is especially useful in systems where thermal expansion and contraction of the piping must be accommodated without compromising joint integrity.

Technical parameters

The nominal pressure rating of PN 16 indicates the maximum allowable working pressure at reference temperatures. The operating temperature range from -20 °C to +90 °C ensures suitability for both cold and hot water applications. These parameters are essential for selecting the correct component based on the system’s hydraulic and thermal requirements.

Installation and connection

To install the elbow, align the PE pipe ends with the fitting ports and insert them fully into the fitting. Ensure that the clamping rings are correctly positioned and that the O-rings are undamaged and seated properly. Tighten the clamping nuts evenly using an adjustable wrench to avoid misalignment. Verify that the connection is secure and that there are no gaps between the pipe and the fitting body.

Common installation errors include over-tightening the clamping nuts, which can damage the O-rings or deform the pipe, and incorrect positioning of the clamping rings. Always inspect the PE pipe ends for burrs or irregularities before insertion and ensure the surface is clean and dry. After installation, perform a visual inspection and apply pressure to the system to confirm there are no leaks.

Compatibility and accessories

This elbow is compatible with PE pipes of the same diameter and requires clamping rings and O-rings for secure and leak-free connections. When ordering, ensure that the necessary sealing components are included to complete the assembly. The fitting is not designed for use with other types of piping or fittings unless explicitly stated in the manufacturer’s documentation.

Technical background for designers

The elbow operates through mechanical coupling, relying on clamping force to compress the sealing rings and create a tight joint between the PE pipe and the brass body. The brass CW617N body offers good corrosion resistance and durability in wet environments. The O-rings provide a flexible seal that compensates for minor misalignments and thermal movement. The PN 16 rating ensures the fitting can handle standard pressure levels in most residential and light commercial applications. The integration into the system depends on proper alignment and correct use of all sealing components to maintain system integrity.

Service and operation

No regular maintenance is required for this fitting during normal operation. However, periodic visual inspections should be conducted to check for signs of wear, leakage or deformation. In the event of a suspected leak, depressurise the system and inspect the clamping nuts, clamping rings and O-rings for damage or misalignment. Replace any damaged components immediately to prevent further issues.

Frequently asked questions

Can this elbow be used with PE pipes of different diameters?
No, this model is specifically designed for connecting PE pipes of the same diameter. Using it with mismatched pipe sizes could result in improper seating and potential leakage.

Is it possible to use this elbow in a closed-loop radiant heating system?
Yes, provided the system operates within the specified pressure and temperature limits. The PN 16 rating and operating temperature range make it suitable for such applications.

What should be done if the O-ring becomes damaged during installation?
Replace the damaged O-ring with a new one of the same specification before proceeding. Using a damaged O-ring can compromise the seal and lead to leaks.

Can the elbow be reused after disassembly?
It is not recommended to reuse the clamping rings or O-rings after disassembly, as they may lose their sealing properties. Always replace these components when reassembling the fitting.