Faced arc 45° - N - 54mm IVAR.IVN73

Product detailed description

Stainless steel faced arcs are essential components in systems requiring directional change while maintaining flow efficiency and structural integrity. This 45° model is commonly used in residential and commercial buildings for heating circuits, fire suppression, and industrial piping. Installers often encounter these fittings in press-fit systems where precise alignment and leak-free connections are critical. The design allows for smooth media flow and minimises turbulence, making it suitable for both low- and medium-pressure applications.

The 45° angle provides a gentler turn compared to 90° bends, which can be beneficial in tight spaces or when minimising pressure drop is a priority. The stainless steel construction ensures corrosion resistance in aggressive environments, such as those found in solar thermal systems or chemical processing facilities. Proper installation requires attention to alignment, pressing depth and sealing indicators to ensure long-term performance.

Technical parameters

Installation and connection

Installation involves aligning the arc with the adjacent pipe and pressing it using a certified press tool. The connection size is determined by the pipe diameter and thread type. Before pressing, ensure the pipe end is clean and free of burrs. The pressing depth should reach the indicator mark on the fitting to guarantee a sealed joint. Common mistakes include misalignment, insufficient pressing force and failure to verify the seal after installation. Always check for visual signs of improper pressing, such as uneven deformation or absence of the pressing indicator.

Compatibility and accessories

This stainless steel faced arc is designed for use with press-fit systems using compatible stainless steel pipes and tools. It is typically paired with straight pipe sections of the same diameter and other press-fit fittings such as couplings, unions and end caps. Ensure that all components are from the same system to maintain compatibility and avoid leaks. No additional accessories are required for standard installation, but press tools and calibration devices must be available for proper assembly.

Technical background for designers

The 45° angle of the arc allows for gradual directional change, reducing flow resistance and energy loss in the system. The use of AISI 316L stainless steel provides high corrosion resistance, particularly against chlorides and acidic media. The material’s mechanical properties remain stable across the specified temperature range, ensuring consistent performance. Integration into the system requires careful calculation of pressure drop and flow velocity to optimise efficiency and prevent erosion. Longevity depends on correct installation, media compatibility and regular inspection for wear or damage.

Service and operation

During operation, the arc requires no active maintenance beyond periodic visual inspections for signs of leakage or deformation. Check the pressing indicator regularly to confirm the joint remains intact. If any issues arise, such as suspected leakage or discolouration, disconnect and inspect the fitting. Replace immediately if damage or wear is detected. No specific service intervals are defined, but inspections should be conducted as part of routine system checks.

Frequently asked questions

Can this arc be used in solar thermal systems?
Yes, the stainless steel construction and operating temperature range make it suitable for solar thermal applications where media temperatures can reach up to +120 °C.

Is it compatible with press-fit stainless steel pipes?
Yes, provided the pipe diameter and press-fit system match the specifications of the arc.

Can it be used with inert gases?
Yes, the material and design are suitable for use with inert gases within the specified pressure and temperature limits.