T-piece 90° PRESS GAS - reduced - 28-22-28mm IVAR.IVN41 GAS

Product detailed description

This 90° reduced T-piece is used in gas supply systems for connecting three press-fit stainless steel pipes of differing diameters. It is suitable for natural gas, biogas and liquefied propane gas installations in residential, commercial and industrial buildings. The fitting ensures a secure, leak-tight connection in low-pressure gas distribution networks, where accurate flow control and system integrity are essential.

Typical applications include gas lines in boiler rooms, gas storage facilities and gas-fired heating systems. The fitting is designed for use in environments with stable operating conditions, where the system remains within the specified temperature and pressure limits. Installers should ensure compatibility with the rest of the press-fit stainless steel piping system and verify that all components meet the same standards and specifications.

Technical parameters

Material	Stainless steel Wst. Nr. 1.4404 (AISI 316L), sealing ring HNBR yellow
Operating temperature	-20 °C
Nominal pressure	PN 5
Code	IVNGAS41.282228
Brand	IVAR

The operating temperature range from -20°C to +70°C allows use in both cold and warm environments, while the nominal pressure rating of PN 5 ensures suitability for low-pressure gas systems. These parameters are critical for selecting the correct fitting for the intended application and ensuring long-term reliability under operational conditions.

Installation and connection

This T-piece is installed using press-fit technology, which requires a compatible pressing tool and die set. The connection sizes are 28 mm, 22 mm and 28 mm for the three ports. Before installation, ensure that the pipe ends are clean and free from burrs or deformations. The press-fit method eliminates the need for welding, reducing installation time and risk of leaks. Common installation errors include incorrect pressing depth, mismatched pipe sizes and failure to check for proper seating of the sealing ring. Always verify the tightness of the connection after pressing and perform a visual inspection for any signs of damage or misalignment.

Compatibility and accessories

This fitting is specifically designed for use with press-fit stainless steel pipes of corresponding diameters. It is compatible with other components in the IVAR IVN41 GAS series, including elbows, couplings and valves. For larger diameters such as 76.1 mm, 88.9 mm and 108 mm, the fitting is available upon special order. When ordering, ensure that all components in the system are made of the same material and meet the same pressure and temperature requirements.

Technical background for designers

The T-piece is constructed from 1.4404 (AISI 316L) stainless steel, known for its high corrosion resistance and durability in gas environments. The yellow HNBR sealing ring provides a reliable seal even at low temperatures. The press-fit design ensures a consistent and repeatable connection without the need for additional tools beyond the pressing equipment. When integrated into a gas system, the fitting contributes to the overall efficiency and safety of the network. Factors such as system pressure fluctuations, thermal expansion and vibration can affect the long-term performance and should be considered during the design phase.

Service and operation

Regular inspections are recommended to ensure continued system integrity. Check for signs of wear, corrosion or leakage at the press-fit connections. If the system is exposed to extreme conditions outside the specified operating range, additional monitoring may be necessary. No scheduled service intervals are required for this component under normal operating conditions. In case of suspected issues, the system should be depressurized and inspected using appropriate diagnostic tools.

Frequently asked questions

Can the T-piece be used in a biogas system?
Yes, it is suitable for biogas and liquefied propane gas in liquid form, provided the operating conditions remain within the specified range.

Is the sealing ring replaceable?
The HNBR sealing ring is integrated into the fitting and cannot be replaced separately. If damaged, the entire component must be replaced.

Can this fitting be welded to the system?
No, it is designed for press-fit installation only. Welding is not recommended and could compromise the structural integrity of the component.

What is the maximum allowable temperature during operation?
The upper limit is +70°C. Exceeding this may reduce the effectiveness of the sealing ring and affect the overall performance of the fitting.