Connecting Technology

Basic method of connecting pipes in the System KAN-therm ultraLINE is the axial press technique utilizing PVDF plastic sliding sleeve. The connection is obtained by putting the extended end of the pipe onto the fitting stub and then sliding onto such connection plastic sleeve.

The material of the pipe is pressed into the connector's notches, owing to which the entire connector surface is sealed – it guarantees perfect tightness and durability of the system. This technique does not require any additional O-ring seals and the quick and easy assembly guarantees resistance to possible assembly errors.

The selected pipe should be cut perpendicularly to the axis to the required length by means of plastic pipe cutters. It is not allowed to use other tools or scissors which are faulty (blunt or chipped).

Put the sleeve onto the pipe. Symmetric structure allows for both-side installation.

Pipe expander should be equipped with a head suitable for the type of the pipe and its diameter. Insert the expanding head fully into the pipe until it stops, axially into the pipe end. Expansion of the pipe should be carried out in two phases: I – initial full expansion of the pipe, in full range of the tool stroke, turn the expander by 45° after expansion, II - final full expansion of the pipe, in full range of the tool stroke.

In temperatures lower than 5 °C, it is recommended to locally heat-up the pipe before expansion utilizing warm (max. 90 °C) air or water. The sliding sleeve must always be away from the expansion zone.

Directly (!) after expansion, insert the fitting into the pipe to the last protrusion on the fitting stub (do not push the pipe up to the fitting flange!). Do not use lubricants.

NOTE! If the pipe is excessively stretched, its material may build up during the connecting. In such a case, finish sliding the sleeve onto the pipe in front of fittings flange (keep a distance of max. 2 mm from the fitting flange).

The press machine should be equipped with special forks. A separate set of forks is intended for each diameter. The forks are equipped with special bumpers protecting the fitting and the sleeve against damage due to excessive clamping force.

Slide the sleeve using manual chain press. The fittings may be caught only by their flanges. It is forbidden to slide on two sleeves at the same time.

It is possible to slide on a sleeve with the use of electric drives, typical of “Press”” connections. The condition to use this type of tools for sliding the sleeve is the use of a special adapter provided by System KAN-therm ultraLINE.

When sliding the sleeve onto the fitting, the assembly process should be observed – after the sleeve is pushed to the fitting flange, the sliding process should be stopped. The connection is ready for pressure testing.

Pay attention to correct position of the fittings in the forks of the tools. In the event of non-compliance with this rule, the fitting and the components of the connection may be overloaded.