DUCTILE IRON PIPES - THE WAY TO CLEAN WATER!
SVOBODNY SOKOL - OVER 100-YEAR-LONG EXPERIENCE IN THE PRODUCTION OF CAST IRON
Ductile iron pipes are twice as resistant to elongation as grey iron pipes and have a much better ductility, close to that of steel.
A reduction of the pipe wall thickness means the pipe is much lighter and easier to handle.
In comparison with other systems, even considering changeable operating conditions, ductile iron pipe systems guarantee the most reliable operation.
Ductile iron pipes are protected against corrosion with protective coatings from the outside and a cement lining from the inside.
In 1990, a ductile iron pipe manufacturing department was designed and equipped by reputable Western European suppliers. In 2004 the production line underwent a complex upgrade.
This included the purchase of a 125 t channel stirrer for cast iron and an automatic core shooter for pipe sockets supplied by Laempe (Germany).
The electronic and technical equipment responsible for quality assurance and the supervision of dosing and weight is controlled by Düker systems (Germany).
SVOBODNY SOKOL company has implemented a quality management system which comprises design, control of all manufacturing processes, assembly and after-sales service. Our quality assurance system applies to all production stages and complies with the ISO 9001 Quality Management System.
Pipes manufactured by SVOBODNY SOKOL also have a valid hygienic certificate issued by the National Institute of Hygiene, allowing them to come in contact with potable water.
Grey cast iron was used for the construction of water pipelines as early as in the second half of the 15th century. An example of the use of cast iron pipes is the water supply pipeline built in the gardens of the Palace of Versailles in the years 1664-1668.
The breakthrough in the history of cast iron was the invention of ductile cast iron in 1943. As a result, grey cast iron was replaced with ductile iron characterised by improved strength and much better impact resistance.
SVOBODNY SOKOL IRON WORKS - Lipetsk, Russia
Modern company comprising 14 production departments and a developed infrastructure.
The metallurgical department operates 3 furnaces with a casting system and an annual capacity
of over 1,000,000 tons of cast iron.