Definition of graphite packing
Graphite packing is a type of sealing material used in various industries to create thermal and chemical insulation. This product is used in many industrial conditions due to its unique characteristics.
graphite packing
Graphite packing is made from graphite fibers that are spun into yarn and then wound into a ring or roll. These yarns have high resistance to heat and chemicals and are therefore used as thermal and chemical insulators in various industrial components and equipment.
Types of graphite packing
1.Pure graphite packing yarn
Made from pure graphite fibers and has high thermal and chemical resistance.
Typically used in situations where maximum corrosion and heat resistance is required.
2.Wire-reinforced graphite packing yarn:
Reinforced with thin metal wires (usually steel or Inconel).
This type has greater mechanical strength and is suitable for applications where high pressure is applied to the yard.
3. Graphite packing with oil/grease:
Graphite yarns are usually impregnated with special oils or greases to provide better lubrication or insulation properties.
Applications of graphite yarn packing
Petrochemical and chemical industries: Due to its resistance to strong chemicals, it is used for sealing in valves, pumps, and chemical tanks.
Power plant industries: It is used in turbines and generators because it can withstand high temperatures.
Steel industries: Graphite packing is used in furnaces to seal seams and pores and prevent heat leakage.
Marine applications: Suitable for insulating marine equipment that is exposed to water and moisture.
Food industry: A special type of graphite hygienic packing which is not harmful or polluting is used in food production lines.
Graphite Packing Analysis Tables
The following sample table includes analysis of typical properties of graphite yarn packing types:
| Packing Type | Operating Temperature (°C) | Operating Pressure (bar) | acceptable pH | Resistance to alcohols | Acid Resistance | ||
|---|---|---|---|---|---|---|---|
| Pure Graphite | Up to 450 | Up to 100 | 0-14 | high | medium | ||
| Reinforced with Wire | Up to 600 | Up to 300 | 0-14 | high | high | ||
| With oil/grease | Up to 350 | Up to 80 | 2-12 | medium | medium | ||
| Packing Type | Operating Temperature (°C) | Operating Pressure (bar) | acceptable pH | Resistance to alcohols | Acid Resistance | ||
|---|---|---|---|---|---|---|---|
| Pure Graphite | Up to 450 | Up to 100 | 0-14 | high | medium | ||
| Reinforced with Wire | Up to 600 | Up to 300 | 0-14 | high | high | ||
| With oil/grease | Up to 350 | Up to 80 | 2-12 | medium | medium | ||
Conclusion
Graphite packing plays a vital role in increasing the efficiency and safety of industrial equipment due to its unique properties. The selection of the right type of this product depends on the environmental conditions and the specific needs of the industrial process. The use of this material can significantly prevent potential leaks and damages caused by improper sealing.