Pipes

Caspian Sanat ZAAL's supply range is focused on high-density polyethylene piping systems. These products supply municipal and rural drinking water mains, gas distribution grids, gravity and industrial sewage networks, and civil drainage schemes.

At this stage, all piping families published in the catalog belong to the polyethylene series. Pipeline material selection depends on geotechnical ground conditions, soil corrosivity, fluid pressures and a 50-year engineering design life.

Pipeline design requires matching structural pipe capabilities with the fluid hydraulic profile. For pressurized systems, wall thickness is governed by the Standard Dimension Ratio. A lower ratio produces a thicker wall and higher nominal pressure capacity.

For gravity lines, the decisive parameter is nominal ring stiffness against earth backfill and live vehicular loads. The viscoelastic nature of polyethylene absorbs hydraulic pressure surges and accommodates differential ground settlement without structural rupture.

Depending on diameter and operational purpose, pipes are joined using butt fusion, electrofusion, mechanical compression fittings, or elastomeric gasketed corrugated couplers. Welded joints provide fully restrained, leak-tight lines that resist root penetration and groundwater ingress.

Factory hydrostatic testing and on-site pre-commissioning pressure tests ensure full alignment with pipeline engineering designs.