T-piece 88,9 x 35 x 88,9

Product detailed description

This reduced T-piece is commonly used in closed pressurised systems for central heating, fire water supply, and industrial air or gas distribution. It is installed in environments where high-pressure resistance and a wide temperature range are required. The component is suitable for both indoor and outdoor applications, provided the installation conditions are within the specified parameters. Installers working on HVAC systems, refrigeration ducts, or solar piping may encounter this fitting in systems requiring a branch connection with a size reduction at one outlet.

The fitting is intended for use in pressurised systems with dry air, inert gases, or water-based media. It is not certified for potable water applications. The EPDM O-ring ensures a tight seal, and the galvanized steel construction provides resistance to corrosion and mechanical damage. The T-piece is assembled using press tools compatible with Type M jaws, allowing for quick and secure installation without welding or threaded joints.

Technical parameters

The operating temperature range from -20 °C to +120 °C allows use in both cold and hot environments. The nominal pressure rating of PN 16 means the fitting can handle continuous pressures up to 16 bar, making it suitable for high-pressure systems. The dimensions 88.9 x 35 x 88.9 mm define the connection sizes, with a reduction at the 35 mm branch. These parameters are essential for accurate system sizing and ensuring compatibility with other components in the network.

Installation and connection

Installation requires a press tool compatible with Type M jaws. The fitting has three press connections: two at 88.9 mm and one reduced branch at 35 mm. The installer must ensure the molding indicator is fully engaged and that no surface coating limiting agents are present. Common mistakes include incorrect jaw alignment, insufficient press force, or using incompatible tools, which may lead to leaks or reduced service life. After installation, the system should be tested for tightness and pressure integrity.

Compatibility and accessories

This T-piece is compatible with other IVAR press fittings and pipes within the same size range. It is intended for use with EPDM O-rings and requires no additional sealing materials. For larger systems, additional branch fittings or straight connectors may be needed. No specific accessories are required for installation, but a press tool and suitable jaws are essential for assembly.

Technical background for designers

The T-piece functions as a branch connection in pressurised systems, allowing the flow of media to be split or combined. The carbon galvanized steel construction provides strength and resistance to corrosion, while the EPDM O-ring ensures a reliable seal. The operating principle relies on the press connection, which forms a permanent joint without the need for welding. The service life and efficiency depend on the installation quality, system pressure, and media compatibility. The galvanized coating also contributes to the component’s durability in aggressive environments.

Service and operation

Regular inspection of the press connections and O-ring integrity is recommended to ensure long-term performance. No specific service intervals are provided, but the system should be monitored for signs of wear or leakage. If a leak is detected, the affected joint should be re-pressed or replaced. The fitting is designed for a long service life under normal operating conditions, provided it is installed correctly and the system remains within the specified pressure and temperature limits.

Frequently asked questions

Can this T-piece be used in solar heating systems?
Yes, it is suitable for solar piping systems provided the operating conditions remain within the specified temperature and pressure limits.

Is this fitting compatible with inert gases?
Yes, the T-piece is designed for use with inert gases, dry air, and water-based media in industrial applications.

Can the T-piece be used for drinking water?
No, the fitting is not certified for potable water applications and should not be used in such systems.

What is the maximum operating temperature for this T-piece?
The maximum operating temperature is +120 °C, with a short-term limit of +180 °C according to the manufacturer's technical data sheet.