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Nagarnar Steel Plant

  • Client
    NMDC Steel
  • Project
    New Nagarnar Integrated Steel Plant, India
  • Orseal involvement
    Supply of oxygen service valves

The new 3MTPA capacity Nagarnar Integrated Steel Plant incorporating Hi-Smelt technology is one of India’s largest.

Orseal were commissioned to supply a range of oxygen services valves for the project. The contract was awarded very much on the basis of our considerable experience of providing valves for extremely demanding applications including areas where very high temperatures are generated and processes in which exceptional corrosion resistance is required.

Inherent dangers

Oxygen service has many inherent dangers and our hazardous-area expertise is particularly relevant to the steel industry, where oxygen service valves are needed.

All materials will react with gaseous or liquid oxygen at certain temperatures or pressures. The reaction that occurs can cause a fire or, even worse, an explosion. This makes it vital for companies supplying valves to the steel industry to have a thorough understanding of system processes and material properties. Clearly, the selection of the wrong valve material could have disastrous consequences.

16 inch ball valve with Rotork acuator

Valves supplied

We supplied ¾” to 18” FB flanged valves in brass with Monel trim. These were trunnion mounted for 18” and floating for 6” and under. They were suitable for operating at temperatures of up to 60°C. Brass was chosen because of its hardness, corrosion resistance and low aluminium content – ideal qualities for such a demanding location.

Before dispatch, Orseal subjected the valves to a process of ultra-cleaning to remove all grease and any other materials that might react with oxygen.