Press bushing - sleeve nut, 3/4" F x 26

Product detailed description

Press bushings with sleeve nuts are commonly used in residential and commercial buildings for connecting flexible plastic piping systems to rigid threaded components. These fittings are essential in heating, plumbing and sanitation systems where ALPEX or similar press-fit piping is used. Installers often encounter these fittings in underfloor heating, domestic hot water circuits and central heating systems. The press bushing allows for a secure and leak-free connection between the plastic pipe and the metal thread, ensuring long-term reliability and compatibility with system pressures and temperatures.

Correct selection and installation of press bushings are crucial for maintaining the integrity of the system. The fitting must be compatible with the pipe material and the tools used for pressing. This model is designed for use with ALPEX piping and requires a press tool compatible with the B-F-TH jaw type. The sleeve nut ensures a tight fit and provides mechanical support to the connection.

Technical parameters

Material	Nickel-plated brass CW617N
Operating temperature	+120 °C
Nominal pressure	PN 10
Weight	0.093 kg
Code	510088
Brand	IVAR

The operating temperature of +120 °C and the PN 10 pressure rating make this fitting suitable for use in hot water systems and central heating applications. The nickel-plated brass construction ensures corrosion resistance and durability in environments with moderate chemical exposure. These parameters are essential for determining the suitability of the fitting for a given system and for ensuring compliance with relevant standards and regulations.

Installation and connection

To install the press bushing, the ALPEX pipe must be cut cleanly and deburred. The pipe is then inserted into the fitting until it reaches the stop mark. The sleeve nut is positioned over the pipe and tightened by hand before using a press tool with the appropriate jaw type to complete the connection. The fitting is available in a 3/4 inch female thread x 26 mm configuration. It is important to ensure that the press tool is correctly aligned and that the pressing operation is performed according to the manufacturer's instructions. Common mistakes include over-tightening the sleeve nut before pressing, which can damage the sealing surface, and using an incompatible press tool, which can lead to an incomplete or faulty connection.

Compatibility and accessories

This press bushing is specifically designed for use with ALPEX piping and requires a press tool with B-F-TH jaws. It is not compatible with other press-fit systems or with standard compression fittings. When ordering, ensure that the correct press tool is available for the installation. No additional accessories are required for the basic installation, but it is recommended to have spare sealing rings and sleeve nuts on hand for replacements or repairs.

Technical background for designers

The press bushing operates by creating a mechanical and hydraulic seal between the plastic pipe and the metal fitting. The nickel-plated brass CW617N material offers good mechanical strength and resistance to corrosion, making it suitable for use in both hot and cold water systems. The EPDM sealing ring ensures a watertight connection and remains flexible over a wide temperature range. The sleeve nut provides additional mechanical support and helps to prevent movement or leakage at the joint. The integration of the fitting into the system depends on the system pressure, temperature and the type of fluid being transported. The service life of the fitting is influenced by the quality of the installation, the compatibility of the materials and the operating conditions.

Service and operation

No regular maintenance is required for this press bushing under normal operating conditions. However, it is important to inspect the connection periodically for signs of leakage or wear, especially in high-temperature or high-pressure applications. If a leak is detected, the fitting should be replaced immediately. There are no specific service intervals provided in the technical data.

Frequently asked questions

Can this press bushing be used with other types of plastic piping?
It is specifically designed for use with ALPEX piping and is not compatible with other press-fit systems.

What press tool is required for installation?
A press tool with B-F-TH jaws is required to complete the connection correctly.

Is the sleeve nut reusable after installation?
No, the sleeve nut is not designed for reuse and should be replaced if the fitting needs to be disconnected.

Can this fitting be used in hot water systems?
Yes, the operating temperature of +120 °C makes it suitable for use in hot water systems and central heating applications.