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Ecopal - Model No-Loss -Sealing Ring System
The `no-loss` sealing ring guarantees the tightness of the system in all cases in which - for different kind of reasons - the normal EPDM sealing ring does not work property. The `no-loss` sealing ring has the capadty to expand his volume more than three times just by having contact with water; thanks to this feature, his reaction fills totally the space between the external pipe wall and the internal coupling wall. The `no-loss` sealing ring is to be used in addition to the normal EPDM sealing ring and has to be positioned in the space between the second and the third corrugation.
"NO-LOSS" sealing ring purposes
Leakages of connections cause for sure environmental problems. The "no-loss" sealing ring builds an insurmountable barrier, which avoids any kind of "out to in" or "in to out" transmission. By this way, following events are totally impossible:
- leakages of black water going to outside
- infiltrations from a water table inside the conduit
Assembling and installation
The "no-loss" sealing ring is assembled in the right position directly in our factory; it has also to be properly protected to avoid - just during the transport of the pipes - an accidental contact with water and consequent reaction & swelling of the sealing ring. On the building site, operators have to remove the protection put on the "no-loss" sealing ring, install the normal EPDM sealing ring in the space between the last two corrugations and proceed to install the coupling.
Available range
The system is available for our external diameters range from OD.250 to OD.800 and for our internal diameters range from ID.300 till to ID.800. The system can be applied also to the SN 16 corrugated pipes in high modulus polypropylene.
Specifications
System realized by a high density polyethylene or high modulus polypropylene pipe for buried no-pressure sewage ducts, produced according to the norm EN 13476-1 with connection through an HDPE coupling marked PIIP/a, EPDM lip seal and a “no-loss” sealing ring, which expand itself in contact with water, to be positioned in the space between the second and the third pipe corrugation.
The Ecopal Advantages
Ecopal is made with high density polyethylene, that is, a polymer which offers a high impact resistance even at low temperatures as well as an excellent chemical resistance, presents better resistance to the abrasion in respect to other materials used in pipe production.
Ecopal peculiar geometric structure guarantees a high deflection resistance and it is produced in two ring stiffness classes (Class 4 kN/m2 - Class 8 kN/m2). In this way the pipe can fulfil different applications even in deep underground.
Ecopal outer black wall guarantees a high UV stability, inner wall is white to ease the pipe TV inspection.
Ecopal is produced in 6 and 12 meter bars; in this way the number of joints is reduced.
Ecopal can be connected with coupler and elastomeric seal or butt welding. The elastomeric seal is placed inside the corrugation, thus avoiding the risk of being displaced during the coupling operation.
The elastomeric seal of a particular profile not only avoids leakage, but also the groundwater entrance into the pipe.
Ecopal is extremely versatile, due to the possibility to have a wide assortment of special fittings and can be connected with any other type of existing pipes.
Ecopal is extremely easy to handle due to its lightness. It is easy to store, to transport and to install and does not need any particular equipment to be moved.
Ecopal is partially flexible and can avoid obstacle during pipe-lining and digging inaccuracy.
