90° single-direction T-piece PRESS IVAR.IVN440 – stainless steel AISI 304, 35 mm

Product detailed description

IVAR.IVN440 – 35 mm (code IVN440.35) is a one-way, therefore equilateral T-piece 90° made of stainless steel AISI 304 (1.4301). The run and the branch end with a pressing collar (PRESS × PRESS × PRESS) for a tube with an outside diameter of 35 mm, so you can branch off a perpendicular branch of the same dimension from the running pipe.

For which systems

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

This T-piece is not suitable for potable water. Its body is marked with the AISI 304 logo, dimensions, traceability code and a symbol indicating unsuitability for potable water.

Pressing for size 35 mm

Connections are pressed with M-profile jaws – for diameters from 15 to 35 mm, single-piece jaws are sufficient. V-profile is prohibited for any diameter. For size 35 mm, pressing tools with medium force (up to 40 kN) are required, which according to the instructions press diameters up to 54 mm. Inspection is facilitated by an orange stripe on the collar, which indicates an unpressed connection, and an LBP (Leak Before Press) O-ring with a broken profile – as long as the connection is not pressed, liquid leaks out during pressure testing.

Cut the tube perpendicularly to the axis, deburr it inside and outside and moisten the O-ring with water at most, never with oil or grease. Insert it with a slight twist until it stops, mark the position with a marker and press the connection for the first time.

Technical data

• maximum operating pressure PN 16, vacuum down to -0.8 bar (absolute pressure 0.2 bar)
• operating temperature -20 °C to +85 °C, maximum +120 °C
• anti-freeze mixture with a concentration of up to 50 %
• material: stainless steel AISI 304 (1.4301), sealing O-ring EPDM
• dimensions according to the drawing: L 101 mm, L1 53 mm, Z 23 mm, Z1 26 mm, I 50 mm

For a smaller or threaded branch, T-pieces IVAR.IVN441 (reduced) and IVAR.IVN442 (with internal thread) are available in the same range. Before starting the heating system, flush the entire system – IVAR recommends GEL.LONG LIFE 100 for treatment.

Technical parameters

Frequently asked questions

Can I use the IVAR.IVN440 T-piece for potable water distribution?
No. Stainless steel AISI 304 fittings in this range are not intended for potable water, which is also indicated by the symbol on their body. Use them in closed heating and cooling circuits, solar systems or for compressed air and technical gases.

Which pressing jaws do I need for size 35 mm?
Jaws with M-profile; for diameters from 15 to 35 mm, single-piece jaws are used. V-profile jaws are prohibited in this system.

How do I know that the connection is not yet pressed?
There is an orange indicator stripe on the collar and the LBP O-ring with a broken profile causes the unpressed connection to leak during pressure testing. An unpressed connection is thus immediately revealed.

Can a smaller branch be branched off from the IVAR.IVN440 35 mm T-piece?
No, it is a one-way T-piece – all three collars have a diameter of 35 mm. For a smaller diameter branch, the reduced T-piece IVAR.IVN441 is available in the range.