IVAR.IVN412 108-88.9 mm Reducer with One Slip End, Stainless Steel AISI 304

Product detailed description

The reduction IVAR.IVN412 108-88,9 mm made of stainless steel AISI 304 (1.4301) is a press-fit system fitting, which allows a transition from 108 mm to 88,9 mm in one step. The smooth insertion end with a diameter of 108 mm is inserted into the press-fit socket of another fitting of the same size, while the opposite side has a press-fit socket with an EPDM O-ring for the 88,9 mm pipe. The total length of the reduction is 196 mm.

For which types of systems is it suitable

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

Not suitable for potable water – this is also indicated by a symbol in the fitting designation.

Operating limits

• pressure up to PN 16, vacuum down to -0,8 bar (absolute pressure 0,2 bar)
• operating temperature from -20 °C to +120 °C
• anti-freeze mixture with a maximum concentration of 50 %

Installation and inspection of the press-fit

The LBP O-ring and the color indicator for press-fit are provided only for sizes from 15 to 54 mm, therefore the 88,9 mm socket does not have them – for such a large connection, the press-fit is verified visually.

Both connections – the 88,9 mm socket and the 108 mm insertion end in the socket of the connecting fitting – are pressed using chain pliers with profile M and at least 3 segments. Insert the pipe all the way to the stop and mark its position with a marker. The O-ring may only be moistened with water, never with oil or grease, and each connection is pressed only once.

For large diameters from 76,1 to 108 mm, the manufacturer recommends fixing the pipes and fittings with mounting clamps before pressing to ensure the connection remains aligned.

Warning: Pressed connections must be made by a qualified person according to the IVAR.PRESS FITTING SYSTEM instructions. Before starting the heating system, the manufacturer recommends flushing the entire system.

Technical parameters

Frequently asked questions

Can the IVAR.IVN412 reduction be used for potable water?
No, fittings made of AISI 304 steel in this series are not suitable for potable water. They can be used, for example, in closed heating and cooling circuits, solar systems, or for compressed air.

How is the 108-88,9 mm reduction connected?
The 88,9 mm pipe is inserted into the press-fit socket of the reduction and pressed. The smooth 108 mm end is inserted into the press-fit socket of another 108 mm fitting and pressed together with it.

Which press-fit pliers are needed?
Both connections – the 88,9 mm socket and the 108 mm insertion end in the socket of the connecting fitting – are pressed using chain pliers with profile M and at least 3 segments. Pliers with profile V must not be used for this system.

Does the reduction have a press-fit indicator?
No. The orange stripe and the LBP O-ring are provided only for sizes from 15 to 54 mm; for the 88,9 mm socket, the press-fit is checked visually.