T-piece 90° - internally threaded - N - 108-Rp3/4"-108mm IVAR.IVN42

Product detailed description

This 90° T-piece is designed for integration into press-fit and threaded piping systems in a range of technical applications. It is commonly used in heating systems, sanitary installations, fire sprinkler systems, and industrial piping where a branch connection is required at a right angle. The component is suitable for environments where the system media includes water, inert gases, or solar system fluids. The stainless steel construction ensures compatibility with aggressive media and long-term reliability in both residential and commercial building installations.

The T-piece is typically installed by connecting one end via press-fit to a stainless steel pipe and the other via internal thread to a threaded fitting or valve. The EPDM O-ring provides a tight seal between the components. The installation must ensure that the press-fit connection is fully compressed to the specified 54 mm dimension to avoid leaks and ensure system integrity.

Technical parameters

Material	Stainless steel grade Wst. Nr. 1.4404 (AISI 316L), EPDM O-ring
Operating temperature	-20 °C
Nominal pressure	PN 16
Code	IVN42.10834108
Brand	IVAR

The operating temperature range of -20 °C to +120 °C allows the T-piece to be used in both cold and hot water systems, as well as in solar and industrial applications. The PN 16 rating indicates that the component is suitable for systems with a maximum working pressure of 16 bar. These parameters are essential for system designers to ensure that the component is correctly sized and selected for the intended application.

Installation and connection

The T-piece is installed using a combination of press-fit and threaded connections. One end is connected to a stainless steel pipe via a press-fit, while the other end is threaded (Rp 3/4") for connection to a valve or fitting. The press-fit connection requires a hydraulic or mechanical press tool to compress the fitting around the pipe. The internal thread must be cleaned and free of debris before tightening. A key installation step is to verify that the press-fit connection is compressed to the full 54 mm dimension. Common installation errors include insufficient compression, which can lead to leaks, or over-tightening the threaded connection, which may damage the O-ring or the fitting.

Compatibility and accessories

The T-piece is compatible with stainless steel press-fit piping systems and threaded components that use an Rp 3/4" connection. It is designed for use with EPDM O-rings and stainless steel pipes of the same material grade. When installing, ensure that all connected components are also rated for PN 16 and the same temperature range. Additional components such as valves, unions or pressure regulators may be required depending on the system design.

Technical background for designers

The T-piece functions as a branch connection in a piping system, allowing for the redirection of flow at a 90° angle. The stainless steel body provides resistance to corrosion and mechanical stress, making it suitable for both indoor and outdoor applications. The EPDM O-ring ensures a tight seal under pressure and temperature variations. The material properties of 1.4404 stainless steel include high tensile strength and resistance to pitting corrosion, which enhances the component’s service life. The integration into the system depends on the correct sizing of the press-fit connection and the alignment of the internal thread with the mating component.

Service and operation

The T-piece requires minimal maintenance due to the durability of the stainless steel and EPDM materials. However, regular visual inspections are recommended to check for signs of wear, corrosion or leakage at the connections. If a leak is detected, the press-fit connection should be re-pressed or the O-ring replaced. No specific service intervals are provided in the technical data, but the component is designed for long-term operation with proper installation and system conditions.

Frequently asked questions

Can this T-piece be used in solar heating systems?
Yes, it is suitable for solar systems as it operates up to +120 °C and is compatible with water-based media.

Is the internal thread compatible with standard valves?
Yes, the Rp 3/4" internal thread is a standard connection size for many valves and fittings.

What tools are required for installation?
A press tool is required for the press-fit connection, and a wrench is needed for tightening the threaded connection.

Can the T-piece be used in industrial gas systems?
Yes, it is suitable for inert gases due to the EPDM O-ring and stainless steel construction.