Brugg Pipes

EWELCON-S

The EWELCON-S Electro-Welding Joint is a member of the "EWELCON family". It is the ideal match for our tried-and-

tested EWELCON welding joint for the smaller dimension range.

The shrink-on sleeve and the prefabricated heating elements for the EWELCON-S electro-welding joint are delivered in

separate packaging units. The shrink-on sleeve, which is

fitted with solar protection foil, is pushed onto the casing pipe

before welding the inner pipes. The heating elements are delivered in handy packaging units which are protected against

contamination as appropriate for use on construction sites. The heating elements are only placed around the two ends

of the plastic casing pipe immediately before welding. The weld seam area can easily be cleaned and dried. This plays a

key part in the high and constant quality of the joint, even in difficult and confined installation locations. These properties

make the EWELCON-S system particularly suitable for new installations. Repairs and refurbishments on existing pipes are

carried out with the EWELCON welding joint using the wraparound method. For quality reasons, the installation is only

carried out by fitters who have acquired the necessary qualifications after thorough training from our training staff.

The shrink-on sleeve in the EWELCON electro-welding joint consists of bimodal PE-HD. This ensures optimal long-term

properties. The thermal conductor, a meanderform copper wire, is embedded in a PE-HD carrier strip. Each heating

element set is fitted with a temperature sensor. The heating elements are fixed onto the prepared casing pipe ends; they

adapt to the component tolerances. The special design in the area of the connecting ends ensures constant welding

conditions over the entire pipe circumference.

Following the usual on-site method, the shrink sleeve is shrunk down onto the casing pipe ends with a gentle propane

gas

flame; the heating elements are optimally chambered as this is done. Together with the contact pressure for the weld

surfaces, the weld bath temperature is the most important requirement for plastic weld seams of high quality. This fact

is consistently implemented in the EWELCON-S system. The required contact pressure is reliably applied by the clamping

tool specially developed for this purpose.

The welding process is regulated by a microprocessor-controlled welding appliance. The temperatures of the weld bath

and the thermal conductor are monitored and stored throughout the entire welding process. This method ensures that

the weld bath temperature is largely independent of disruptive external in

fluences (such as the weather) and thus

comparable from one welding operation to the next. The parameters for each welding operation are stored in the welding

computer so that they can be read out and documented at a later stage. Furthermore, every joint produced is subjected

to a thorough visual inspection and a tightness test, after which it is foamed and the filling and venting bores are sealed

with weld plugs.

17.1.2025 BGP

Subject to technical changes