O-rings are rubber ring-shaped seals that can create a leak-proof seal between two components to help prevent the escape of gases or liquids. Once the surfaces are joined, the o-ring becomes compressed to form a tight seal.

These versatile components can be used in static applications or dynamic applications where there is relative motion between the o-ring and the parts, such as in hydraulic cylinder pistons or in rotating pump shafts. They are often made from a form of elastomer and used in dynamic and static applications.

National Plastics and Seals is globally recognized as a leading supplier of o-rings and seals. We can provide o-rings for use in hydraulic pumps and fittings, automobiles, air conditioning systems, cylinders and valves, pneumatic tools, and more. Keep reading to learn more about the uses and advantages of rubber o-rings and how we can meet your project’s sealing requirements.

O-Ring Specifications:

  • Material types:
    • Buna
    • Viton
    • Nitrile (Buna-N)
    • Silicone
    • EPDM
    • Polyurethane
    • PTFE
    • Neoprene
  • Hardness Scale:
    • 70D
    • 90D
    • 75D
  • Colors:
    • Black
    • Brown
    • Red
    • Orange
  • Sizing:
    • Various sizes available, please call with your specific requirements.

Benefits and Uses of Rubber O-Rings

Many applications benefit from o-rings because of their versatility and effectiveness as a sealing solution.

Wide Pressure Range

O-rings from National Plastics and Seals are effective at maintaining a reliable seal at varying pressure levels. They can also handle temperature fluctuation while maintaining their sealing effectiveness.

Adaptability to Irregular Surfaces

Made of rubbers like nitrile, silicone, neoprene, or Teflon, o-rings have the flexibility to conform to minor imperfections in surfaces, ensuring a tight seal when joining components.

Abrasion Resistance

O-rings are ideal for applications with friction and wear, as their rubber materials offer good abrasion resistance.

Chemical Compatibility

O-rings can be made from various rubber materials, such as Viton, Nitrile, and EPDM, to provide chemical resistance for applications where components are exposed to harsh environments. Common applications include systems with oils, fuels, and chemicals.

Long Service Life

O-rings from National Plastics and Seals are a cost-effective solution that can provide reliable service of equipment and assemblies for long periods of time. To achieve an extended service life from rubber o-rings, one must take proper care when selecting the gasket type and conduct routine equipment maintenance.

Easy To Install

With their simple design, ease of creation, high flexibility, and reliability, o-rings are relatively easy to install in a wide range of applications.

Rubber O-Ring Applications

Many industries use O-rings for sealing applications due to their wide availability, affordability, and reliable sealing properties:

Automotive

O-rings are used in the automotive industry for engines, transmissions, and other systems to prevent leakage of liquids or gases.

Aerospace

Aerospace

Aircraft engines, hydraulic systems, and other critical aerospace components rely on o-rings for high sealing performance in demanding operating environments.

Plumbing

Plumbing

O-rings are a critical component in the plumbing industry. They are used in faucets, valves, and other plumbing components to prevent leaks.

Industrial Machinery

Industrial machinery

Many industrial machines use o-rings, including pumps, compressors, and hydraulic equipment.

Electronics

Electronics

O-rings are used in various electronic components to keep out moisture and dust. Connectors, switches, and similar devices rely on rubber o-rings.

Medical Devices

Medical devices

The medical industry uses o-rings for various medical devices and equipment, such as pumps, valves, and syringes.

Rubber O-Rings and Seals by National Plastics

National Plastics brings over 35 years of experience in the plastic and components industry and uses top-quality and high-performing materials. As one of the leading suppliers of O-rings and seals, National Plastics provides o-rings and gaskets to various industries around the world. We can provide o-rings in different durometers and materials to fit almost any application requirements. In addition, we are an ISO 9001-certified company, meeting the most stringent industry standards with quality and reliable sealing components.

Contact us to discuss your application needs and learn how our selection of o-rings and seals can be the perfect solution. Request a quote for quality o-rings for your next project.