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Rings rubber sealing import NBR 70 buy in Almaty
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Rings rubber sealing import NBR 70

Rings rubber sealing import NBR 70

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Kazakhstan, Almaty
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Rings rubber sealing import NBR 70
NBR (Nitrile Butadiene Rubber) - butadiene - nitrile rubber or as it is called simply, nitrile rubber, is considered standard material of rings of round section.

Sealing rings from NBR rubber have high resistance to swelling in relation to benzene, oils and fats.

Consolidations from NBR the hydraulics, engine-building, mechanical engineering, oil industry, an apparatostroyeniye is used in areas with relevant requirements, such as.

NBR is widely used because it combines low cost (in comparison with other basic polymers) with good oil resistance and wear resistance. The greatest lack of a nitrile — in weak resistance to the increased temperatures. Material hardens, cracks.

The nitrile is a copolymer of butadiene and acrylonitrile (ACN). The upper temperature bound of operation can be expanded by increase in percent of ACN, however at the same time also the lower temperature limit will rise. If to reduce ACN percent, the lower temperature limit, but working capacity will go down at the increased temperatures will suffer.

Rings rubber sealing import NBR 70

It was developed by Bayer firm in 1930 as the first-ever oilproof rubber. Since then, several "modernizations" of this rubber were carried out.

Perbunan® (perbunan) is a trademark of synthetic rubber of the LANXESS Technical Rubber Products company which is included into Bayer concern. In comparison with rubbers on the basis of other NBR rubbers, perbunan has higher rates to aging, attrition, wear. Possesses bigger stability in oils.

For the producer of rubber products, important feature of Perbunan® is its improved characteristics when curing that promotes increase in productivity of the enterprise.

Rubbers on the basis of NBR possess good stability to:

  • to aliphatic hydrocarbons (propane, butane, gasolines)
  • to the majority of mineral oils and plastic greasings on their basis
  • hard flammable hydraulic liquid
  • to liquid fuel: to gasoline, diesel fuel and fuel oil
  • to animal and vegetable oil and fat
  • to hot water
  • to salt solutions at a low temperature
  • to the diluted acids
  • to rather low temperatures
  • to alcohol
  • aromatic veshchestvm with concentration less than 40% (the leaded fuel)

Low firmness to:

  • to acetone
  • to ultraviolet and atmospheric action
  • to uksusnokislotny ester
  • to aromatic hydrocarbons (for example benzene, toluene)
  • to the chlorinated hydrocarbons (trichlorethylene, tetrachloroethylene)
  • silicone oils and greasings
  • to brake fluids on the glycoleft basis
  • to influence of ozone and weather influence.

Rings rubber sealing import NBR 70

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Rings rubber sealing import NBR 70
Rings rubber sealing import NBR 70
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