Male threaded adapter press fitting IVAR.IVN481 – stainless steel AISI 304, 22 mm – R1/2"

Product detailed description

IVAR.IVN481 22 mm – R1/2" (code IVN481.2212) is an AISI 304 (1.4301) stainless steel adapter with two different ends: a press socket for pipe with an outside diameter of 22 mm and a R1/2" male thread. Use it wherever a pressed stainless steel line continues into a heating valve or a fitting with female thread. The press socket matches the pipe diameter, so the adapter does not reduce the line size.

Suitable systems

• closed heating and cooling circuits, solar systems
• compressed air and vacuum systems
• inert and technical gases, technical and process fluids
• industrial applications, waste water and rainwater

This adapter is not intended for drinking water. Its body is marked with the AISI 304 logo, the size, a traceability code and a symbol indicating that it is unsuitable for drinking water.

Pressing the 22 mm socket

For this size, even a portable low-force press tool (up to 17 kN) is sufficient – according to the manufacturer it presses up to roughly 28 mm – used with one-piece M-profile jaws. Jaws with the V profile are prohibited for all diameters. An unpressed joint is revealed by the orange band on the socket and by the LBP (Leak Before Press) sealing O-ring with its broken profile, through which liquid escapes during the pressure test until the joint has been pressed.

R1/2" threaded side

Seal the thread only with chloride-free material – chloride-free PTFE tape, hemp with chloride-free sealing paste or chloride-free sealing tape – otherwise local corrosion of the stainless steel may occur. Stainless steel is compatible with brass, bronze or copper valves; where it would be in direct contact with carbon steel, the manufacturer recommends inserting a non-ferrous metal spacer at least 50 mm long.

Technical data

• maximum operating pressure PN 16, vacuum down to -0.8 bar (absolute pressure 0.2 bar)
• antifreeze mixture with a concentration of up to 50 %

Follow the installation and operating manual of the IVAR press system during assembly. Flush the entire heating system before commissioning – for its treatment IVAR recommends GEL.LONG LIFE 100.

Technical data

Frequently asked questions

Can I use the IVAR.IVN481 adapter for drinking water?
No. The AISI 304 stainless steel fittings in this range are not intended for drinking water, as a symbol on their body also indicates. They belong in closed heating and cooling circuits, solar systems or lines for compressed air and technical gases.

Which press tool do I need for the 22 mm socket?
Even a portable low-force tool up to 17 kN with one-piece M-profile jaws will do. Jaws with the V profile must not be used.

What should I use to seal the R1/2" male thread?
Use only chloride-free sealing materials – PTFE tape, hemp with paste or sealing tape in a chloride-free version. Chlorides from the sealant can attack the stainless steel locally.

How can I tell that a joint has not been pressed yet?
The socket has an orange indicator band, and the LBP O-ring with its broken profile makes an unpressed joint leak during the pressure test. A forgotten joint is therefore found before commissioning.