PRESS elbow 90° - with connecting pipe, 18 x 15 x (950)

Product detailed description

This 90° press elbow is commonly used in residential and commercial central heating installations where compact layout design is required. The elbow facilitates directional changes in piping runs while maintaining hydraulic continuity between components such as radiators and valves. Installers typically handle these fittings during system assembly, ensuring secure connections under normal operating pressures and temperatures.

The fitting is suitable for use in forced circulation systems with closed-loop water circuits, particularly where space constraints necessitate tight turns. Its application includes both new build projects and retrofitting, especially when integrating modern piping solutions into existing infrastructure. The elbow is often found in underfloor heating layouts, panel heater connections, and radiator manifold assemblies.

Technical parameters

Installation and connection

Installation requires the use of a compatible pressing tool, such as IVAR.TR 4430, which compresses the fitting onto the prepared ends of the ALPEX pipes. The elbow features a connecting pipe section that aligns with the outer diameter of the system piping. Prior to pressing, installers should verify the cleanliness and cut quality of the pipe ends to ensure a leak-free connection. Common errors include improper alignment of the elbow body or applying force unevenly during the pressing process.

Key connection points are male threads measuring 18 mm and 15 mm, designed to interface with standard ALPEX pipe diameters. The elbow must be positioned so that the connecting pipe extends fully into the pipe wall, avoiding misalignment that could cause stress fractures over time. After pressing, visual inspection and pressure testing are recommended to confirm correct installation.

Compatibility and accessories

This elbow is specifically intended for use with ALPEX cross-linked polyethylene (PE-X) piping systems. For installation, the pressing tool IVAR.TR 4430 is required. The fitting is compatible with standard radiator valves and manifold outlets that accept the specified thread sizes. When assembling a complete system, it is necessary to also order sufficient quantities of press rings and EPDM sealing materials to match the number of connections planned.

Technical background for designers

The press fitting operates via a mechanical deformation process that bonds the metal fitting to the plastic pipe surface, forming a hermetic seal. The nickel-plated brass CW617N offers high tensile strength and thermal conductivity, supporting efficient heat transfer through the system. The EPDM sealing material ensures flexibility and chemical resistance under varying flow conditions. System designers should consider the elbow’s angular displacement and pressure drop characteristics when calculating overall circuit losses and balancing requirements.

Long-term efficiency depends on correct installation practices and adherence to manufacturer guidelines regarding maximum operating temperatures. The elbow integrates seamlessly into closed-loop systems where thermal expansion and contraction are managed through proper pipe support and insulation strategies.

Service and operation

During routine maintenance, operators should inspect the elbow for signs of mechanical stress, such as cracks or deformation, particularly after prolonged exposure to high temperatures. Pressure testing can be conducted periodically to detect potential leaks. No scheduled service intervals are specified for this component, provided the system remains within design parameters and no external damage occurs.

Frequently asked questions

Can this press elbow be connected to standard copper piping?
No, it is designed exclusively for ALPEX PE-X piping and cannot be used with metallic systems without additional adapters.

Is this elbow suitable for use in solar heating systems?
It is not recommended for solar applications due to the lack of specific certification for elevated temperature ranges beyond 120°C.

What pressing tool is required for installation?
A dedicated pressing tool, such as IVAR.TR 4430, must be used to ensure a secure connection between the fitting and the pipe.

Can this elbow be used vertically in a riser installation?
Yes, provided the installation follows standard orientation principles and the system is properly supported to avoid sagging or torsion.