Mineral fiber packing is a high-performance sealing material made from inorganic mineral fibers, often combined with other reinforcing materials and binders to enhance its properties. It is designed to withstand extreme temperatures, corrosive environments, and high-pressure conditions, making it an ideal choice for industries such as chemical processing, power generation, and heavy machinery. This type of packing is known for its durability, resistance to thermal degradation, and ability to maintain a tight seal under varying operational stresses.
Our Mineral fiber packing is engineered to meet rigorous industrial standards. Below are the detailed specifications presented in list and table formats for clarity and professional reference.
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Temperature Range | -100 to 1200 | °C | Can withstand thermal cycling without degradation. |
| Max Pressure | 25 | MPa | Suitable for high-pressure sealing applications. |
| Density | 1.8 - 2.5 | g/cm³ | Variations available for specific density requirements. |
| Thermal Conductivity | 0.05 | W/m·K | Provides good insulation properties. |
| Compression Set | < 10 | % | Measured after 24 hours at max temperature and pressure. |
| Chemical Resistance | pH 0-14 | - | Resistant to most acids, alkalis, and solvents. |
| Tensile Strength | 15 - 20 | MPa | Ensures durability under mechanical stress. |
Mineral fiber packing is versatile and used in various sectors due to its robust properties. Common applications include sealing in pump shafts, valve stems, and flange gaskets where high temperature and chemical resistance are critical. It is also employed in boilers, turbines, and heat exchangers to prevent leaks and ensure operational safety. Industries such as petroleum refining, pharmaceuticals, and wastewater treatment rely on this packing for its longevity and reliability in harsh environments.
What is the maximum temperature mineral fiber packing can handle?
Mineral fiber packing can withstand temperatures up to 1200°C (2192°F) continuously, with short-term peaks possible depending on the specific formulation. This makes it suitable for applications involving extreme heat, such as in furnaces or exhaust systems.
How does mineral fiber packing compare to other types of packing materials?
Compared to organic packings like aramid or carbon, mineral fiber packing offers superior heat resistance and chemical inertness. It is less flexible but excels in environments where thermal stability and corrosion resistance are paramount, outperforming many alternatives in longevity under severe conditions.
Can mineral fiber packing be used in food processing industries?
Yes, but only if it is certified for food-grade applications. Our products can be manufactured with FDA-compliant materials, ensuring no contamination and suitability for use in food and beverage processing equipment where high temperatures are involved.
What maintenance is required for mineral fiber packing?
Mineral fiber packing requires minimal maintenance due to its durability. Regular inspections for wear and tear are recommended, especially in high-vibration environments. It should be lubricated periodically if used in dynamic applications to reduce friction and extend lifespan.
Is mineral fiber packing environmentally friendly?
Yes, it is made from abundant natural minerals and is often recyclable. The production process minimizes waste, and the packing itself is non-toxic and does not release harmful substances, aligning with environmental regulations and sustainability goals.
How do I select the right size and type of mineral fiber packing for my application?
Selection depends on factors like temperature, pressure, chemical exposure, and equipment type. Refer to our parameter table and consult with our technical team for tailored recommendations. Generally, measure the shaft or stem diameter and choose a packing size that allows for proper compression without over-tightening.
Does mineral fiber packing require a break-in period?
Yes, a brief break-in period is advisable to allow the packing to seat properly. This involves gradually tightening the gland follower and running the equipment at low pressure for a few hours to ensure optimal sealing and prevent premature wear.
What are the signs that mineral fiber packing needs replacement?
Common signs include increased leakage, reduced compression, visible fraying or degradation, and higher operating temperatures. Regular monitoring helps identify these issues early, preventing downtime and potential damage to equipment.
