Knee press 90° - PPSU, 63 x 63

Product detailed description

Press elbows are essential components in press-fitting systems, particularly in residential and commercial heating and plumbing installations. They allow for directional changes in piping layouts without the need for additional support structures. Installers working with ALPEX press systems commonly use these fittings to create precise 90° bends in pipe runs, ensuring leak-free and durable connections. The PPSU material ensures compatibility with hot water and heating media, making it suitable for underfloor heating, central heating, and domestic hot water circuits.

When installing press systems, it is crucial to ensure that the pipe ends are clean and free from burrs. The press tool must be calibrated correctly to apply the required pressure without damaging the fitting. This 90° press elbow is designed for use with ALPEX pipes of equal diameter and must be paired with the appropriate press tool and sleeve to ensure a secure connection. The EPDM sealing ring ensures a tight fit and long-term reliability in pressurised systems.

Technical parameters

Material	Plastic PPSU
Operating temperature	+120 °C
Nominal pressure	PN 10
EAN	4013960368673
Weight	0.283 kg
Code	88463200
Brand	IVAR

The operating temperature of +120°C and PN10 pressure rating make this fitting suitable for systems operating under moderate pressure and temperature conditions. These parameters are essential for determining the fitting’s suitability for specific applications, such as domestic hot water or low-temperature heating systems. The PPSU material is chosen for its resistance to thermal stress and chemical stability in water-based systems.Installation and connection The 90° press elbow is installed using a press tool compatible with B-F-TH jaw types. The connection size is 63 x 63, meaning it connects two ALPEX pipes of the same diameter. Before installation, the pipe ends must be cut cleanly and deburred. The stainless steel sleeve is inserted into the pipe, followed by the fitting, and then pressed using the correct tool. A common mistake during installation is using an incorrect press tool or applying uneven pressure, which can lead to a weak or failed connection. Always verify that the press tool is set to the correct depth and that the sleeve is fully seated within the pipe.Compatibility and accessories This press elbow is specifically designed for use with ALPEX pipes and must be used in conjunction with a stainless steel sleeve and EPDM sealing ring. The fitting is compatible with press tools that support B-F-TH jaw types. No additional products are required for standard installation, but it is important to ensure that all components are from the same manufacturer to maintain system integrity and warranty conditions.Technical background for designers The PPSU (polyphenylsulfone) material is selected for its high-temperature resistance and mechanical strength. It maintains dimensional stability under thermal cycling and is chemically inert to water and common additives in heating systems. The stainless steel sleeve provides additional structural support and ensures a secure press connection. The EPDM sealing ring ensures a watertight seal and is compatible with the sleeve and pipe material. When integrated into a system, the elbow must be positioned to allow for thermal expansion and contraction of the piping, and the overall system layout should be designed to avoid stress on the press connections.Service and operation No regular maintenance is required for this fitting during normal operation. However, periodic visual inspections are recommended to check for signs of mechanical stress, corrosion, or leakage. If the system is shut down for an extended period, it should be drained to prevent freezing or condensation damage. The service life of the fitting is influenced by the operating conditions, particularly the frequency of thermal cycling and the quality of the initial installation.Frequently asked questions

Can this press elbow be used with other types of pipe besides ALPEX?
No, this fitting is specifically designed for ALPEX pipes and will not provide a secure connection with other pipe materials.

Is the PPSU material suitable for long-term exposure to hot water?
Yes, the PPSU material is chemically stable and maintains its mechanical properties at operating temperatures up to +120°C, making it suitable for hot water and heating systems.

Can the press elbow be reused after installation?
No, once the fitting has been pressed, it cannot be removed or reused. A new fitting must be installed for any replacement or repair work.

What press tool is required for this fitting?
A press tool compatible with B-F-TH jaw types is required to ensure a correct and secure connection during installation.