90° reduced T-piece IVAR.IVN441 108-28-108 mm, crimped, stainless steel AISI 304

Product detailed description

Tee 90° IVAR.IVN441 108-28-108 mm is a reduced pressed stainless steel elbow made of AISI 304 (material no. 1.4301). The running branches have a size of 108 mm, the perpendicular branch is 28 mm – this fitting allows you to connect a smaller branch to the main pipe without further reduction. All three ends are pressed (press × press × press) and sealed with EPDM O-rings. The overall length of the fitting is 312 mm.

Where the Tee is suitable

• closed heating and cooling systems, solar circuits
• compressed air distribution, vacuum systems, inert and technical gases
• technical and operational liquids in industry
• drainage of waste and rainwater

The fitting is not suitable for potable water – this is also indicated by a symbol printed together with the logo, AISI 304 material, dimensions and traceability code directly on the product.

Operating parameters

• maximum operating pressure PN 16, vacuum up to -0.8 bar (absolute pressure 0.2 bar)
• temperature from -20 °C, in normal operation up to +85 °C, maximum +120 °C
• anti-freeze mixture with a concentration of up to 50 %

Pressing and connection inspection

The 28 mm branch has a patented LBP (Leak Before Press) O-ring with a broken profile – an unpressed connection will leak during pressure testing – and an orange stripe as an indicator of pressing. The manufacturer states these features are available only for sizes from 15 to 54 mm; the running branches of 108 mm do not have them and their pressing must be checked especially carefully.

Pressing is done using M contour jaws. Warning: installation must be carried out by a qualified person in accordance with the installation and use instructions issued by the system manufacturer. Before commissioning the heating system, the manufacturer strongly recommends flushing the entire system; for water treatment, the preparation GEL.LONG LIFE 100 is recommended.

In the IVAR.IVN441 range you will also find other dimension combinations from 18-15-18 mm up to 108-88.9-108 mm.

Technical parameters

Frequently asked questions

Is the IVAR.IVN441 108-28-108 mm tee suitable for potable water?
No, stainless steel fittings of this series made of AISI 304 are not suitable for potable water and also carry a symbol indicating this. They are used, for example, in closed heating and cooling circuits, solar systems, or for compressed air.

Which pipes are connected to this tee?
Pipes of size 108 mm are pressed into the two running branches, and a pipe of 28 mm into the perpendicular branch. All three ends are pressed (press × press × press).

Which tool is used to press the tee?
Pressing tool with M contour jaws. Connections must be made by a specialist in accordance with the installation and use instructions from the system manufacturer.

How can I tell if a connection remains unpressed?
The 28 mm branch has an LBP O-ring, which will reveal an unpressed connection by leakage during pressure testing, and an orange indicator stripe. The 108 mm running branches do not have these features, so their pressing must be checked especially carefully.