V.C. Pipes and fittings are produced according to GSO EN 295 -1 :2008 standards fully complying with International standards EN 95 & ASTM C 700. these standards are for V.C socket / spigot pipes used for sewerage and drainage water system running under atmospheric pressure gravity.
Vitrified clay pipes are produced from homogeneous mixture of raw clay and other suitable materials of clay which has been already fired and grounded to the required grain size. The internal and external surface of the barrel are coated with glaze
High standards of quality are achieved through the use of modern clay preparation plant and control of firing in shuttle kilns . Quality control is rigorously applied in the interests of consistent high performance standards. Measurement checks are made on every pipe.
Pipes and fittings are manufactured to tolerances specified in the standards as well as the deviation from straightness of the barrel of the pipe.
All pipes are produced to withstand at least the crushing forces listed in the table for different International standards in kN/m .Higher crushing strengths are guaranteed by the company.
Crushing strength in kN/m
Watertightness and Impermeability
Pipes and fittings must withstand the relevant watertightness or impermeability tests of the different standards mentioned (5m head of water) and in all cases allowable loss ≤ 0.07 l/m2 x 15min.
Clay pipes and fittings are not attacked by substances contained in waste water or ground water or soils and resist developed gases and all chemicals found in sewage (acid and alkali). This fact applies to the body of the pipe and the glaze. Clay pipes and fittings will satisfy the chemical tests of the different international standards in the range of PH 2 - 12 at 70°C.