Arch 45° PRESS GAS - 18mm IVAR.IVN22 GAS

Product detailed description

This 45° press elbow is a key component in press-fitting gas distribution systems, commonly used in residential, commercial and industrial heating installations. It is designed for use with press-fitting stainless steel piping and is suitable for applications involving natural gas, biogas and liquid propane. The elbow is used to create directional changes in piping layouts, particularly in tight spaces where a 90° bend would be impractical. It is commonly found in boiler rooms, underfloor heating systems and gas-fired water heater installations.

As a directional fitting, it is typically installed between straight pipe sections or other press fittings. The press connection ensures a leak-tight joint without the need for welding, making it ideal for installations where heat-sensitive materials are present. The elbow is compatible with standard press tools and requires no additional sealing compounds or gaskets beyond the integrated O-ring.

Technical parameters

The nominal pressure rating of PN 5 indicates that the fitting is suitable for low-pressure gas systems operating within the specified temperature range. The operating temperature range of -20 °C to +70 °C ensures compatibility with typical gas distribution conditions, including cold environments and heated systems. The material selection of 1.4404 stainless steel provides resistance to corrosion and ensures long-term durability in gas applications.

Installation and connection

Installation of this 45° press elbow requires the use of a calibrated press tool compatible with 18mm stainless steel piping. The fitting is inserted into the pipe end and aligned before pressing. The connection size is 18mm, and the press tool must be set to the correct depth to ensure full engagement of the tooling with the pipe and fitting. After pressing, the joint should be inspected for proper tool marks and alignment. Common installation mistakes include using incorrect tooling, over-pressing, or failing to clean the pipe ends before assembly, which can lead to leaks or reduced joint integrity.

Compatibility and accessories

This 45° press elbow is compatible with other IVAR press fittings and stainless steel piping of the same nominal size. It is intended for use in gas distribution systems and should not be used with other media without verification from the manufacturer. No additional accessories are required for standard installation, as the sealing ring is pre-installed. For larger sizes (76.1mm, 88.9mm and 108mm), the fittings are available on request.

Technical background for designers

The 45° press elbow functions by redirecting the flow of gas within a piping system. The use of 1.4404 stainless steel ensures resistance to corrosion and maintains structural integrity under varying pressure and temperature conditions. The HNBR sealing ring provides a reliable seal against gas leakage. When designing a system, it is important to consider the directional change introduced by the elbow and its impact on flow resistance and pressure drop. The elbow should be integrated into the system in a way that minimises stress on the pipe and ensures even load distribution across the joints.

Service and operation

Once installed, this press elbow requires no regular maintenance. However, periodic visual inspections are recommended to check for signs of mechanical damage, corrosion or leakage. If any issues are detected, the fitting should be replaced immediately. As the fitting is designed for a permanent connection, any repairs or replacements will require cutting out the affected section and re-pressing new components.

Frequently asked questions

Can this 45° press elbow be used with other gas types besides natural gas?
Yes, it is suitable for natural gas, biogas and liquid propane, provided the operating conditions remain within the specified parameters.

Is it possible to use this fitting in a system with higher pressure than PN 5?
No, the nominal pressure rating of PN 5 must not be exceeded. For higher-pressure applications, alternative fittings must be selected according to the manufacturer's specifications.

Can this fitting be used with copper or other types of piping?
No, it is specifically designed for use with stainless steel piping and press-fitting systems. Using it with other materials may compromise the integrity of the connection.

What tools are required for installation?
A calibrated press tool suitable for 18mm stainless steel piping is required. The tool must be set to the correct depth to ensure a secure and leak-tight connection.