General Information |
|
Seal Type |
Tetrafluoroethy rubber mechanical seal |
Application |
Widely used in various industrial applications such as chemical processing, oil and gas industry, and food processing equipment for sealing purposes. Suitable for pumps, valves, and rotating machinery where reliable sealing against a variety of fluids is required. |
Physical Properties |
|
Density |
Approximately 1.8 g/cm³ |
Hardness |
Shore A: 60 - 70 |
Tensile Strength |
Min. 10 MPa (1450 psi) |
Elongation at Break |
Min. 200% |
Mechanical Performance |
|
Pressure Rating |
Up to 15 bar (217.5 psi) under normal operating conditions |
Speed Limit |
Maximum rotational speed of 30 m/s |
Temperature Range |
-20°C to 200°C (-4°F to 392°F) |
Geometric Dimensions |
|
Inner Diameter (ID) |
Available in a range from 15 mm to 250 mm |
Outer Diameter (OD) |
Varies depending on the ID, with a typical radial thickness of 6 - 12 mm |
Thickness |
4 - 10 mm for different applications |
Sealing Face |
|
Surface Finish |
Ra value of 0.2 - 0.5 µm for optimal sealing performance |
Flatness |
Maintained within 0.0003 - 0.0006 mm |
Materials of Construction |
|
Main Seal Material |
Tetrafluoroethy rubber compound |
Reinforcement Material |
High-strength fabric or metal inserts for added durability (where applicable) |
Metal Parts |
Stainless steel (e.g., AISI 316) for corrosion resistance in most environments |
Chemical Compatibility |
|
Compatible Fluids |
Water, most organic solvents (such as alcohols, esters), mild acids (e.g., acetic acid in low concentrations), and alkalis |
Incompatible Fluids |
Strong oxidizing agents like concentrated nitric acid, and some highly reactive chemicals that can attack the rubber structure |
Installation and Maintenance |
|
Installation Torque |
For bolts or fasteners related to the seal assembly, a torque range of 12 - 25 Nm is recommended |
Lubrication |
Use a compatible lubricant during installation to ensure smooth fitting and prevent damage to the seal. A silicone-based lubricant is often suitable. |
Maintenance Interval |
Depending on the operating conditions, it is advisable to inspect the seal every 3 - 9 months. In harsher environments or high-duty applications, more frequent inspections may be required. |
Testing and Quality Assurance |
|
Pressure Test |
Conducted at 1.8 times the rated pressure for 45 minutes to ensure the integrity of the seal under pressure. |
Leakage Test |
Permissible leakage rate is set at a maximum of 0.08 ml/h under normal operating pressure and temperature conditions. |
Dimensional Inspection |
All dimensions are verified to be within an accuracy of ±0.08 mm to ensure proper fitment in the equipment. |
Performance Characteristics |
|
Friction Coefficient |
In the range of 0.15 - 0.25, depending on the contact surface and lubrication conditions |
Wear Rate |
Under normal operating conditions with proper lubrication and within the specified pressure and temperature limits, the wear rate is less than 0.0015 mm/year. |
Certifications |
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Meets ISO 9001:2015 quality management system standards for manufacturing. |
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Complies with relevant safety and environmental regulations such as RoHS (Restriction of Hazardous Substances) for use in industrial products. |
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