Ductile iron water pipes

Ductile iron water pipes

DUCTILE IRON

Ductile iron properties are the result of the adjunction of a small quantity of magnesium to the grey iron.

In addition to excellent tensile strength, yield strength and elongation ductile iron has a high-level corrosion resistance.

It is therefore possible to use the pipes under alternating load, earth motion and sagging, withstanding high thickness of soil and
great traffic load.

DUCTILE IRON WATER PIPES: FEATURES

Zinc and final coatings are applied to the outer pipe surface according to ISO 8179. The inner surface of the pipe may have
cement mortar lining (CML). (Thickness and properties to ISO 4179).

DUCTILE IRON WATER PIPES: ADVANTAGES

• Durability

The expected faultless service life of ductile iron pipeline systems is:
– In water supply networks under condition of soil corrosion, stray current and absence of cathodic protection 80 to 100 years
– In sewage networks with hydrogen sulphure it reaches 50 to 60 years

• Easy installation

It is possible to lay the pipes directly in the ground at a depth of 8-10 m. without bed preparation.

They are ideal for complicated laying conditions.

• Energy saving

Inside cement mortar lining of the ductile iron pipes does not only ensure observation of the hygienic requirements at potable water transportation, but also improves the hydraulic properties of the ductile iron pipelines.

Hydraulic frictional losses in the pipeline are greatly reduced, fulfilling all of today’s energy saving requirements.

• Reliability

Unique properties of ductile iron pipelines provide:
– no corrosion in conjunction with high mechanical properties and functional features of spigot and socket connections;
– high safety margin compared to other pipeline systems;
– cold resistance (impact strength of ductile iron pipes does not change in the range from +20°C to -60°C)

• Environmentally friendly

Ductile iron pipeline systems are impermeable for hydrocarbons and chemical substances that can be found in environing soils.

It is possible to completely recycle the pipes after use.

DUCTILE IRON PIPE RANGE ACCORDING TO PRESSURE CLASSES