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Lubricants for nuclear reactor systems need to be effective at exceptionally high temperature and high pressure, on components that move at considerable speed, under relatively heavy load, and in the presence of radiation.

Tribology and machine design

Radiation can cause many lubricants in nuclear reactors to undergo viscosity change, loss of stability and to develop corrosive tendencies. Heat, pressure and oxidation also have harmful effects on the base oils and other ingredients of lubricants. Effective lubricants are so important to nuclear systems that they are considered integral design components, rather than maintenance treatments. The high functioning of any machine in a reactor system depends on lubrication that is well suited to its parts and their functions. Changing lubricants is thus a major decision because you are not merely applying a new product, you are making a change to a machine’s design. 

Carefully formulated, versatile nuclear reactor lubricant

Understanding the high tribological demands of nuclear reactor systems, and the importance of nuclear reactor lubricants, manufacturers know they need to make lubricants that are an easy choice for lubrication engineers, who typically select lubricants according to original equipment manufacturer (OEM) recommendations. Therefore, it is essential to offer well-formulated, versatile solutions that can easily be matched to OEM specifications across a wide range of machines and components. 

In line with these needs, Huron Industries developed its Neolube® range – dry film lubricants specially formulated for use in nuclear power plants. The range includes:

  • Neolube® No. 1, which provides non-corrosive, dry adherent lubrication for metal parts in limited clearances where control of impurities is required.
  • Neolube ® No. 2, a conductive lubricant used in nuclear power generating plants as an anti-seize compound, thread lubricant and for lubricating moving parts and rubbing surfaces.
  • Neolube ® No. 1260, a high-temperature lubricant and sealant used in critical service applications to 635°C (1175°C) and 2300 psi. 

We also market a formulation of molybdenum disulfide in isopropanol, a specialty lubricant for applications where strict impurity control is required.

Contact Huron Industries for more information on our range of lubricants for nuclear reactor systems.

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