An The versatile and indispensable O-ring, also known as a packing or a toric joint, stands as a quintessential mechanical gasket elegantly crafted in the shape of a torus; it is a seamless loop of resilient elastomer with a precisely rounded cross-section, meticulously designed to nestle into a groove and undergo compression during assembly between multiple components, thereby establishing a robust and reliable seal at the crucial interface.
The O-ring is adept for use in both static applications and dynamic scenarios, where movement occurs between interfacing parts and the O-ring itself. Dynamic examples are found in rotating pump shafts and hydraulic cylinder pistons. In static settings, O-rings are ideal for fluid or gas sealing tasks where: (1) the O-ring is compressed to eliminate clearance, (2) the material of the O-ring is expertly vulcanized to form a solid barrier that is impermeable to the fluid or gas, and (3) the O-ring material exhibits resilience against degradation when in contact with the fluid or gas.[1] The extensive variety of liquids and gases requiring sealing has driven the evolution of a plethora of O-ring materials
such as Styrene-butadiene rubber (SBR)
Materials:
Selecting the perfect O-ring involves considering chemical compatibility, application temperature, sealing pressure, lubrication requirements, durometer, size, and cost efficiency.
Among synthetic rubbers - Thermosets:
- notable options include Butadiene rubber (BR)
- and Butyl rubber (IIR)
- as well as Chlorosulfonated polyethylene (CSM)
- and Epichlorohydrin rubber (ECH, ECO)
- with Ethylene propylene diene monomer (EPDM)
- and Ethylene propylene rubber (EPR)
- as excellent options. Fluoroelastomer (FKM)
- and Nitrile rubber (NBR, HNBR, HSN, Buna-N)
- are also prevalent, while Perfluoroelastomer (FFKM)
- and Polyacrylate rubber (ACM)
- Polychloroprene (Neoprene - Discover the versatile and durable material that's perfect for a variety of sealing applications.) (CR) - Commonly known as Chloroprene Rubber, offering exceptional weather and ozone resistance.
- Polyisoprene - Experience the natural goodness of rubber, providing excellent elasticity and resilience. (IR) - Also referred to as synthetic natural rubber, delivering superior flexibility and strength.
- Polysulfide rubber - This material is designed for extraordinary resistance to fuels and aggressive chemicals. (PSR) - Known for its robust chemical resistance, making it ideal for challenging environments.
- Polytetrafluoroethylene - Renowned for its non-stick properties, this material excels in high-temperature applications. (PTFE) - Commonly known as Teflon, this high-performance material offers exceptional chemical resistance.
- Sanifluor - Engineered to meet demanding applications, offering excellent resistance to chemicals and high temperatures. (FEPM) - Known for its ability to withstand harsh chemical environments, ensuring reliability.
- Silicone rubber - Embrace the flexibility and thermal stability of silicone rubber for diverse applications. (SiR) - A material choice known for its durability and resistance to extreme temperatures.
Nitrile is the most cost-effective and commonly available rubber O-ring material. Ideal for use as seals for pumps, drive belts, and other general engineering applications in the hydraulic and pneumatic industry. NBR is excellent for applications where the O-ring is exposed to fats, greases, and animal or vegetable oils. For applications requiring contact with diesel or temperatures higher than 120°C, consider a Polymax FKM (Viton®) rubber O-ring.
| Colour |
Black |
| Material |
Nitrile (NBR) |
| Internal Diameter (mm) |
24.99 |
| CS value |
3.53 |
| Cross Section Type |
Circular |
| O-ring type |
British Standard |
| Hardness (Shore A) |
70 |
| Maximum Temperature (°C) |
90.00 |
| Minimum Temperature (°C) |
-30.00 |
Why choose us:
New line:Experience the cutting edge of innovation with our high-tech production, utilizing the latest mixing line technology and offering a high degree of automation for supreme quality and efficiency.
High performance:Our compounds' physicomechanical characteristics not only meet but exceed the stringent requirements of technical standards, ensuring unmatched quality.
Control:Achieve precision with 100% automatic control over the rheological characteristics of each rubber compound batch, complemented by clear graphical and tabular test results for assurance.
Production culture:Elevate production culture with the application of a high-quality separation emulsion as a release agent, preventing sticking and enhancing overall efficiency.
Individual approach:Embrace personalization with individual customer consultations and tailored development of rubber compounds to meet specific needs and requirements.
Innovations:Stay ahead with monthly development of innovative rubber compound recipes, continuously pushing the boundaries of material science.
More than 50 years of experience:Benefit from over five decades of practical experience, utilizing thousands of components and partnering with world-leading material innovators.
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