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172A• Break pressure manholes

In some installations with a steep and long slope in which water goes down from a deposit, spring, etc. it is necessary to break the growing pressure which is produced in the parte inferior of the pipe with the aim of not having excessive pressure in the case that the pipe transfers the load or suffers some obstruction.Leer más

116a
The pipes of the supply network, are normally buried in the subsoil of the towns, under pavements, asphalt, paving stones, etc., covered with filling ground, gravel, graded-aggregate or buried and protected with concrete at junctions of streets or points where they can suffer high loads. It is not common that the pipes run visibly on the surface or on the interior side of visited galleries, conditions under which it would be simple to find the exact point of the damage and repair it.Leer más

5a

In the 60s of XX century, plastic pipes had begun to be introduced in some areas of Catalonia and Andalusia using rigid PVC pipes. At that time natural gas was still not and gas distributed (“city” gas or “manufactured”) it was locally manufactured from petroleum and in some cases still from coal.Leer más

9a

In the AMI seminar, FRIATEC (www.friatec.com) introduced a new generation of electrofusion fittings Frialen –XL for PE pipe joining large diameter up to 1200mm which solves the Ovality problem and outer diameter Tolerances, that are important in these dimensions, through flexible electrofusion couplers.Leer más