Arc 45° - N - 35mm IVAR.IVN22

Product detailed description

This 45° stainless steel elbow is commonly used in residential and commercial buildings for directional changes in press-fit piping systems. It is suitable for integration into central heating, fire suppression, and industrial gas lines. Installers working on closed-loop systems, such as underfloor heating or solar thermal circuits, will find this fitting essential for adapting pipe layouts to structural constraints or equipment placement.

The design allows for precise alignment and secure sealing when compressed using a certified press tool. The EPDM O-ring ensures a leak-tight connection, provided the fitting is fully compressed to the specified 54 mm dimension. This makes the fitting ideal for applications requiring long-term reliability and resistance to corrosion, such as in aggressive environments or systems using chemically treated water.

Technical parameters

Material	Stainless steel grade Wst. Nr. 1.4404 (AISI 316L), O-ring EPDM
Operating temperature	-20 °C
Nominal pressure	PN 16
Code	IVN22.35
Brand	IVAR

Installation and connection

To install the IVN22.35, the fitting must be pressed onto the prepared pipe end using a press tool calibrated for 1.4404 stainless steel. The pipe must be cut cleanly and deburred to ensure the press tool engages correctly. The O-ring should be seated evenly in its groove before pressing. After pressing, the installer must verify the indicator mark aligns with the 54 mm dimension. Common mistakes include insufficient pressing force, which can lead to leaks, or reusing fittings after initial compression, which compromises the seal integrity.

Compatibility and accessories

This fitting is compatible with other IVAR press-fit components made from 1.4404 stainless steel. For systems requiring expansion joints or flow control, additional valves and regulators may be needed. Related products include straight press-fit pipes and other elbow variants from the IVAR.IVN22 series.

Technical background for designers

The fitting operates by compressing the EPDM O-ring between the pipe and the fitting body, creating a mechanical and hydraulic seal. The use of 1.4404 stainless steel ensures resistance to oxidation and pitting in both hot and cold environments. Designers should consider the maximum operating temperature and pressure limits when integrating this component into a system. The longevity of the fitting is influenced by the quality of the press operation and the chemical composition of the fluid in the system.

Service and operation

Routine inspection should focus on the integrity of the press mark and the absence of visible corrosion or deformation. If the fitting shows signs of wear or leakage, it must be replaced with a new unit, as re-pressing is not recommended. No scheduled maintenance is required beyond visual checks during system audits.

Frequently asked questions

Can the IVN22.35 be used in solar thermal systems?
Yes, the 45° elbow is suitable for solar thermal applications due to its resistance to high temperatures and chemical stability.

Is the EPDM O-ring compatible with chemically treated water?
The EPDM material is resistant to many common water treatments and is appropriate for use in potable water systems.

What happens if the indicator mark is not reached during pressing?
If the indicator mark does not align with the 54 mm dimension, the fitting is not fully compressed and must be replaced with a new unit.

Can this fitting be used in gas systems?
It is suitable for inert gases and low-pressure gas systems, provided the operating conditions remain within the specified temperature and pressure limits.