Fittings - for multilayer pipe ALPEX - 16x2 ALU-EK IVAR.TA 4420

Product detailed description

Threaded fittings for ALPEX multilayer pipes are essential components in the installation of heating and plumbing systems in residential and commercial buildings. These fittings are used to connect pipes to valves, radiators, and other system components. Installers must ensure correct sizing and sealing to maintain system integrity and prevent leaks. The fitting must be compatible with the pipe's dimensions and the system's operating conditions.

Proper installation of threaded fittings requires attention to detail. The fitting must be aligned with the pipe, and the sealing ring must be undamaged and correctly positioned. The tightening torque must be within the specified range to avoid under- or over-tightening. Installers should also check for compatibility with other system components and ensure that the installation follows the manufacturer's guidelines.

Technical parameters

Installation and connection

The fitting is designed for use with ALPEX multilayer pipes with dimensions 16 x 2. The connection is made using a Eurocone thread (EK) or an M24 thread. During installation, the pipe and EPDM sealing ring must be inserted into the fitting, ensuring that the sealing ring is not damaged. The nut must be manually tightened first, followed by the use of a suitable wrench (AC 670 / AC 671) to achieve the correct tightening torque of 25–35 Nm.

Common installation mistakes include using the wrong type of lubricant on the sealing ring. The EPDM sealing ring must not be lubricated with mineral oil; instead, silicone-based lubricant should be used. Another mistake is not following the correct tightening sequence, which can lead to leaks or damage to the fitting. Installers should also ensure that the fitting is clean and free from debris before installation.

Compatibility and accessories

This threaded fitting is specifically designed for use with ALPEX multilayer pipes. It is compatible with systems operating at nominal pressure PN 10 and temperatures up to +120°C. To complete the installation, the appropriate wrenches (AC 670 / AC 671) should be used for tightening. No additional products are required for installation, as the fitting includes the necessary EPDM sealing ring.

Technical background for designers

The fitting operates by creating a sealed connection between the pipe and the system component. The brass CW617N material provides good mechanical strength and resistance to corrosion, ensuring long-term reliability. The EPDM sealing ring ensures a tight seal, preventing leaks and maintaining system pressure. The fitting's design allows for easy installation and removal, making it suitable for maintenance and system modifications.

The service life of the fitting is influenced by the quality of the installation, the operating conditions, and the maintenance of the system. Regular inspection of the fitting and the sealing ring is recommended to ensure continued performance. The fitting's compatibility with ALPEX pipes ensures that it can be integrated into a wide range of heating and plumbing systems.

Service and operation

During operation, the fitting requires minimal maintenance. The sealing ring should be inspected for signs of wear or damage, and the fitting should be checked for leaks. If any issues are detected, the fitting should be replaced immediately to prevent system failure. The tightening torque should not be adjusted during operation, as this can compromise the seal and lead to leaks.

Frequently asked questions

Can the fitting be used with other types of multilayer pipes?
No, the fitting is specifically designed for use with ALPEX multilayer pipes. Using it with other types of pipes may result in leaks or damage to the fitting.

What type of lubricant should be used on the sealing ring?
Only silicone-based lubricant should be used on the EPDM sealing ring. Mineral oil can damage the sealing ring and compromise the seal.

What is the correct tightening torque for the fitting?
The tightening torque should be between 25 and 35 Nm. This range ensures that the fitting is securely tightened without damaging the sealing ring or the pipe.

Can the fitting be used in systems with higher operating temperatures?
No, the fitting is rated for operating temperatures up to +120°C. Using it in systems with higher temperatures may cause the sealing ring to degrade and lead to leaks.