Facing arc 15° - N - 108mm IVAR.IVN75

Product detailed description

Stainless steel facing arcs are essential components in press-fit piping systems, particularly in installations where tight bends and directional changes are required. They are commonly used in residential and commercial buildings, including heating and sanitary systems, fire suppression systems, and industrial processes. Installers working in these environments rely on precise fittings to maintain system integrity and flow efficiency. This 15° arc is designed for integration into press-fit systems, ensuring secure and leak-free connections when properly installed.

For installers, understanding the role of facing arcs in directional routing is key. These components allow for controlled deviations in pipe alignment without compromising structural strength or hydraulic performance. In systems such as underfloor heating, solar thermal loops, or compressed air networks, the use of correctly sized and installed facing arcs ensures long-term reliability and ease of maintenance.

Technical parameters

Material	stainless steel grade Wst. Nr. 1.4404 (AISI 316L)
Operating temperature	-20 °C
Nominal pressure	PN 16
Code	IVN75.108
Brand	IVAR

The PN 16 rating indicates the component’s ability to withstand nominal pressures up to 16 bar at standard operating temperatures. The specified operating temperature range (-20 °C to +85 °C, with a maximum of +120 °C) ensures suitability for a wide range of applications, including cold water supply, hot water circulation, and low-temperature heating systems. These parameters are critical for correct sizing and selection, especially in environments with fluctuating thermal loads or where high-temperature fluids are involved.

Installation and connection

This 15° stainless steel facing arc is designed for use with press-fit tools and requires a proper press-fit connection to ensure a leak-free seal. The fitting is intended for use with compatible press-fit tubing of the same material. Prior to installation, the inner surface of the fitting must be inspected for damage or contamination. The press-fit tool must be calibrated and used according to the manufacturer’s instructions to achieve the correct compression depth. A common mistake during installation is insufficient or over-pressing, which can lead to leaks or mechanical failure. The indicator mark on the fitting must align with the tool’s stop point to confirm correct engagement.

Compatibility and accessories

This facing arc is compatible with press-fit stainless steel tubing and must be used with press-fit tools designed for 1.4404 (AISI 316L) stainless steel. No additional sealing materials are required due to the inherent sealing properties of the press-fit connection. When planning a system, ensure that all components are from the same press-fit family to maintain compatibility and system integrity. No specific accessories are required for installation beyond the press-fit tool and tubing.

Technical background for designers

This facing arc operates on the principle of mechanical deformation achieved through press-fit technology. The stainless steel material offers high corrosion resistance and mechanical strength, making it suitable for aggressive environments and high-purity fluid systems. The 15° angle allows for directional changes in pipe layout while maintaining a smooth internal profile to reduce turbulence and pressure loss. The PN 16 rating ensures that the fitting can handle typical system pressures without deformation. Long-term performance is influenced by the quality of the press-fit connection, the operating temperature range, and the chemical composition of the transported media.

Service and operation

Regular inspection of press-fit connections is recommended to detect early signs of wear or loosening. The integrity of the connection should be visually checked for any misalignment or damage to the indicator mark. If a leak is suspected, the affected section should be isolated and the fitting repressed or replaced. No scheduled service intervals are specified for this component; maintenance is only required in the event of visible damage or system failure.

Frequently asked questions

Can the IVN75.108 be used with copper or plastic piping?
No, the IVN75.108 is specifically designed for use with press-fit stainless steel tubing and cannot be connected to copper or plastic piping without an incompatible transition fitting.

Is the stainless steel material suitable for acidic or alkaline environments?
Yes, 1.4404 (AISI 316L) stainless steel offers good resistance to both acidic and alkaline media, making it suitable for use in a wide range of chemical environments.

Can this facing arc be used in a solar thermal system?
Yes, provided the system operates within the stated temperature and pressure limits. The material and press-fit design are suitable for solar thermal applications.

What is the purpose of the indicator mark on the fitting?
The indicator mark is used to confirm correct press-fit depth. During installation, the mark must align with the tool’s stop point to ensure a secure and leak-free connection.

Documents for download

• SKTL_IVAR.IVN75 czver (PDF)