The R09 Duraflex is a cutting-edge, double-acting rotary seal designed for sealing shafts, axles, cylinder bores, rotary manifolds, and swivels with rotary, helical, or oscillating movement. This innovative sealing solution features a high-grade PTFE material ring, activated by an elastomeric O-Ring, or custom dome shaped rubber energizer providing exceptional sealing performance across a wide range of applications and industries.
Design and Functionality
The R09 Duraflex seal’s contact surface profile is meticulously engineered for optimal performance in high-pressure environments and at low sliding speeds. Its symmetrical cross-section allows it to effectively respond to pressure from both directions, ensuring double-acting performance. Initial contact pressure is provided through the radial compression of the energizer. As system pressure increases, the energizer enhances the contact pressure, ensuring reliable sealing under all conditions. The seal ring may feature one or two continuous machined grooves, which enhance sealing efficiency by increasing specific surface load pressure, forming a lubricant reservoir, and reducing friction.
Features and Benefits
Typical Applications
The R09 is ideal for use in hydraulic and pneumatic equipment across various industries, including:
Specification | Details |
Pressure Capacity | Maximum of 4,500 psi. |
Temperature Range | -50°C to +260°C | -58°F to +500°F |
Max Speed | 10 ft/s |
Material | Description | Temperature Range | Wear Resistance | Extrusion Resistance | Abrasion to Shaft |
Unfilled PTFE | Suitable for light-duty service with the lowest friction and excellent chemical compatibility. It is FDA compliant and white in color. | −450°F to 450°F (−270°C to 230°C) | Low | Low | Low |
1130 | 1130 is a polymer and carbon filled PTFE (polytetrafluorethylene) material that is significantly softer than most other carbon filled PTFE’s, but it is a much better sealing material with good wear properties. This material has excellent tensile strength and elongation for PTFE based materials. This material is specifically designed for demanding sealing/wear applications where PTFE is deemed appropriate. | −450°F to 450°F (−270°C to 230°C) | High | Medium | Low |
Graphite-Filled PTFE | Designed for light-duty service with low friction and very good chemical compatibility. It has good wear resistance in liquids and humid conditions. The color is black. | −450°F to 475°F (−270°C to 230°C) | Low | Low | Low |
Graphite-Carbon-Filled PTFE | Suitable for general light-duty applications with low friction and very good chemical compatibility. It has good wear resistance in liquids and humid conditions. The color is black. | −450°F to 500°F (−270°C to 230°C) | Medium | Medium | Low |
1215 | 1215 is a proprietary, polymer and carbon filled PTFE (polytetrafluorethylene) material. In addition to retaining the exceptional chemical resistance, heat resistance, corrosion resistance, and low friction properties of unfilled PTFE, it also offers significantly improved compressive properties, better wear properties, and low creep under load. It is ideal for oilfield applications as it can effectively handle down-hole chemicals, hydrocarbons, oils, mud, and slurries. Primarily, it is used for dynamic sealing components, such as face seals, packing, riders, and V-packing. It is a significant upgrade from carbon filled PTFE materials normally used in these applications. | −450°F to 500°F (−270°C to 260°C) | Medium/High | High | Medium |
Moly-Glass Filled PTFE | For extreme conditions, offering excellent extrusion resistance but may be abrasive to soft mating materials. The color is black. | −450°F to 500°F (−270°C to 260°C) | High | High | High |
Glass-Filled PTFE | Glass fiber improves the wear properties of PTFE, lowers the deformation under load at both high and low temperatures, and increases the impact resistance while leaving the electrical and chemical characteristics of PTFE essentially unchanged. It is suitable for piston rings, valve seats, shaft seals, electrical insulators, bearing pads and gaskets. This material should not be used in contact with strong alkalis and hydrofluoric acid. | −450°F to 500°F (−270°C to 260°C) | High | High | High |
Material | Description | Temperature Range |
HNBR | HNBR (Hydrogenated Nitrile Butadiene Rubber) stands out as a premium sealing material, offering enhanced resistance to chemicals, oils, and temperatures, making it particularly suitable for harsh environmental conditions encountered in the oil and gas industry. Notably, HNBR showcases superior strength and retention of properties after long-term exposure to heat, oil, and chemicals, surpassing the performance of standard NBR. | -30°C to 150°C -22°F to 302°F |
NBR | NBR (Nitrile Butadiene Rubber) is a highly valued sealing material due to its excellent resistance to oils, fuels, and other chemicals, making it an ideal choice for applications in the automotive and aerospace industries. With a temperature operating range, NBR provides versatility under varied environmental conditions. Very cost effective option. | -40°C to 120°C -40°F to 248°F |
FKM | FKM (Fluoroelastomer) is highly regarded in the sealing industry for its exceptional resistance to high temperatures, chemicals, and aging, making it indispensable in aerospace, automotive, and chemical processing sectors. This material thrives across a wide temperature range, enabling its use in extreme conditions where other materials would fail. FKM’s remarkable compatibility with a wide variety of chemicals, including oil, fuel, and solvents, along with its ability to withstand harsh environmental factors, ensures its preference for high-performance seals, O-rings, and gaskets. Its robustness and longevity under aggressive conditions underscore FKM’s value as a premier choice for demanding sealing applications. | -20°C to 200°C -4°F to 392°F |
TFE/P | Aflas, a fluoroelastomer developed by AGC Chemicals, is renowned for its outstanding performance in extreme environments, making it indispensable in various industries such as oil and gas, automotive, chemical processing, and food and pharmaceuticals. Composed of tetrafluoroethylene and propylene (TFE/P), Aflas excels with its exceptional heat resistance, tolerating continuous service temperatures up to 232°C (450°F), and demonstrates remarkable chemical resistance to strong acids, bases, oils, amines, and steam. Its durability is further enhanced by its resistance to oxidative and thermal degradation, ensuring longevity and reliability in aggressive conditions. Additionally, Aflas offers excellent electrical insulation properties, making it suitable for applications requiring high electrical resistivity. | -25°C to 232°C -13°F to 450°F |
Simriz® 498 | Simriz® 498 is the ultimate FFKM material. Its unique patented material structure provides an outstanding long-term performance in nearly every environment. No matter if it is extreme temperatures up to 325°C or harsh chemicals or even overheated steam and hot water. Simriz® 498 is the best match for every oil and gas application. | -6°C to 325°C 21°F to 617°F |
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