Press nipple - reduced, 50 x 26

Product detailed description

Press-reduced couplings are used in heating and plumbing systems to connect pipes of different diameters. These fittings are commonly installed in residential and commercial buildings, where they help maintain system integrity and reduce pressure loss. Installers typically use them in applications where pipe size transitions are required, such as in underfloor heating systems or domestic hot and cold water distribution. The nickel-plated brass construction ensures resistance to corrosion and wear, while the EPDM seal provides a durable and flexible connection. Proper installation is essential to avoid leaks and ensure long-term performance.

Technical parameters

Material	Nickel-plated brass CW617N
Operating temperature	+120 °C
Nominal pressure	PN 10
Weight	0.358 kg
Code	510128
Brand	IVAR

The nominal pressure of PN 10 indicates that the fitting is suitable for systems operating at up to 10 bar. The maximum operating temperature of +120°C makes it suitable for hot water and heating applications. These parameters are critical for sizing and selecting the correct fitting for the intended system, ensuring compatibility with the operating conditions and pipe material.

Installation and connection

To install the press-reduced coupling, first ensure the ALPEX pipes are cut cleanly and free of burrs. Insert the pipes into the fitting until they reach the stop mark. Use a press tool compatible with the B-F-TH jaw type to apply the required pressure. Check that the press mark is clearly visible and that the seal is not damaged during installation. Common installation errors include insufficient press force, misalignment of the pipes, or using an incompatible press tool. Always verify the connection after installation by inspecting for leaks and ensuring the press mark is fully formed.

Compatibility and accessories

This coupling is specifically designed for use with ALPEX pipes and is compatible with press tools that use B-F-TH type jaws. No additional accessories are required for standard installation. The stainless steel sleeve and EPDM seal ensure compatibility with the pipe material and system media. When planning a system, ensure that all press fittings are from the same manufacturer and system to maintain compatibility and performance.

Technical background for designers

The press-reduced coupling operates by compressing the stainless steel sleeve around the ALPEX pipe, creating a secure and leak-tight connection. The nickel-plated brass body provides good mechanical strength and corrosion resistance, while the EPDM seal ensures flexibility and a tight fit. The material combination is suitable for both hot and cold water systems and is compatible with the thermal expansion characteristics of ALPEX pipes. The nominal pressure and temperature ratings are key factors in system design, influencing the choice of fittings and the overall system reliability.

Service and operation

No regular maintenance is required for this type of press fitting. However, during system inspections, check for signs of wear, corrosion, or leakage. If any issues are detected, the fitting should be replaced. The long-term performance of the fitting depends on correct installation and the absence of mechanical stress or thermal cycling beyond the rated limits.

Frequently asked questions

Can this coupling be used with other types of pipes besides ALPEX?
No, this coupling is specifically designed for ALPEX pipes and is not compatible with other pipe materials.

What press tool is required for installation?
A press tool with B-F-TH type jaws is required to ensure a correct and secure connection.

Is it possible to reuse the coupling after installation?
No, once the coupling has been pressed, it cannot be reused. A new fitting must be installed if the connection needs to be changed or repaired.

Can this fitting be used in systems with higher operating temperatures?
No, the maximum operating temperature is +120°C. Exceeding this limit may compromise the integrity of the seal and the fitting.