IVAR.IVN412 76.1-42 mm slip-on reducer, one end, stainless steel AISI 304

Product detailed description

The reduction IVAR.IVN412 76,1-42 mm made of stainless steel AISI 304 (1.4301) is a press-fit system fitting that allows a transition from a dimension of 76,1 mm to 42 mm in one step. The smooth socket end with a diameter of 76,1 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 42 mm pipe. The total length of the reduction is 154 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

It is 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 42 mm socket is equipped with an LBP (Leak Before Press) O-ring with a segmented profile – an unpressed joint will leak during pressure testing and thus cannot pass inspection. Additionally, an orange stripe is located on the socket, which tears during pressing and can be removed by hand.

Both connections – the 42 mm socket and the socket end of 76,1 mm in the connecting fitting – are pressed using chain pliers with an M profile 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 of 76,1 to 108 mm, the manufacturer recommends fixing the pipes and fittings with mounting clamps before pressing to ensure the joint remains precisely aligned.

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

Technical parameters

Common questions

Can the IVAR.IVN412 reduction be used for potable water?
No, fittings made of AISI 304 steel in this range 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 76,1-42 mm reduction connected?
The 42 mm pipe is inserted into the press-fit socket of the reduction and pressed. The smooth 76,1 mm end is inserted into the press-fit socket of another 76,1 mm fitting and pressed together with it.

Which press-fit pliers do I need?
Both connections – the 42 mm socket and the socket end of 76,1 mm in the connecting fitting – are pressed using chain pliers with an M profile and at least 3 segments. Pliers with a V profile must not be used with this system.

How can I recognize an unpressed connection?
The 42 mm socket has an LBP O-ring that allows liquid to escape during pressure testing of an unpressed connection. An unpressed socket is also indicated by an intact orange stripe.