icon
Ductile Iron Flange Pipe

Ductile Iron Flange Pipe

Electrosteel manufactures Flange Pipes using all three methods, i.e. Welded-on Flanged Pipes, Screwed-on Flanged Pipes and ‘As Cast’ Flanged Pipes, as per IS 8329, IS 9523, ISO 2531 and EN 545. We also make Flange pipes as per AWWA C115.

Flange Pipe typesPRESSURE CLASSTHICKNESS CLASS
Welded Flange Pipes
--
Flanges are welded on either or both ends of the barrel. As per customer requirement, flanges are sometimes welded on the barrel at a point other than the ends which are called Puddle flanges.
Dia. 1100 mm. Length- up to 5.0 metresPN 10, PN 16 and PN25 (PN40 on request)
Screwed Flange Pipes
--
Flanges are screwed on the barrel instead of welding.
Dia. 450 mm. Length- up to 5.0 metresPN 10 and PN 16
‘As Cast’ Flange Pipes
--
Cast as a single unit using advanced Lost Foam technology
Dia. 80 to 600 mmPN 10, PN 16, PN25

Note : For product improvement, the dimensions, size range and specification may be changed without prior notice.

Advantage of Ductile Iron Flanged Pipes

  • Stronger: Ductile Iron Flanged Pipes are much stronger because of its higher tensile strength and better impact resistance.

  • Higher Factor of Safety: It offers higher factor of safety against pressure fluctuations, water hammer and outside impacts.

  • Lighter to Use: DI Flange Pipes are lighter compared to CI Flanged pipes, reducing handling and transportation cost.

  • Negligible Breakages in Transit and During Handling: Does not break on sudden impacts. Loss due to transportation and handling are minimized.

  • Reduced Pumping Costs: The Pipes are centrifugally cement mortar lined. This results in a smooth inside surface which reduces friction loss.

  • Longer Life and Corrosion Resistance: Inside cement mortar lining does not allow corrosion of the internal surface. The external Zinc/Zinc Aluminium finished with Bitumen/Epoxy etc coatings offer robust protection against external corrosion.

  • Dimensional Accuracy & Better Finish: Centrifugal casting of Flange Pipes ensures uniform wall thickness and excellent surface finish that cannot be achieved in green sand casting due to floating, shifting or deformation of the core.

Applications

Application
Application

  • Pipelines and crossovers on pillars, over canals or other water bodies

  • Crossings over roads and bridges

  • Rigid, above-ground pipeline runs where alignment can be maintained

  • Not recommended for underground or buried installation

Application
Application

  • Vertical pipe runs in water and sewage treatment plants

  • Vertical pipelines within pump houses

  • Riser pipelines for elevated and overhead service reservoirs

  • Rigid alignment suited to fixed vertical runs

Application
Application

  • Inter-connecting various units within pump houses

  • Inter-connecting units and accessories in water treatment plants

  • Inter-connecting units and accessories in sewage treatment plants

  • Easy disconnection for maintenance or replacement of accessories


Application
Application

  • Flanged joints are rigid and can function as a restrained joint

  • Reduces the need for thrust blocks at bends and tees

  • Reduces reliance on external restraining devices

  • Suited to high-pressure applications where alignment is maintained

Application
Application

  • Applications where pipelines need to be disengaged

  • Pipelines that need to be transferred from one location to another

  • Suited to installations requiring periodic dismantling

  • Faster reconfiguration compared to buried or permanent joints