Hexagon Head Self Drilling Screw Hexagon Head Self Drilling Screw Hexagon Head Self Drilling Screw Hebei Qianmu Fastener Manufacturing Co., Ltd , https://www.qmjgjfasteners.com
Expanded graphite packing, also known as flexible graphite packing, is made by weaving flexible graphite wire. This type of packing offers excellent self-lubrication, high thermal conductivity, a low friction coefficient, and strong adaptability. It is highly flexible, durable, and provides effective protection for the shaft. Depending on specific application needs, it can be reinforced with materials such as carbon fiber, copper wire, 304 stainless steel, 316L stainless steel, or Yinzhi nickel alloy wire.
**Basic Description of Expanded Graphite Packing:**
1. Pure graphite packing is commonly referred to as "expanded graphite packing" or "flexible graphite packing."
2. Flexible graphite packing is typically woven from low sulfur expanded graphite wire.
3. Cotton yarn is often used as a reinforcing material to enhance its structural integrity.
4. It has a very low friction coefficient, which prevents wear on pump shafts and valve stems.
**Description:**
The expanded graphite packing is woven from low sulfur expanded graphite wire and reinforced with inner cotton yarn. It features a very low coefficient of friction, excellent thermal conductivity, good chemical resistance, and high resilience. To meet different performance requirements, various reinforcing materials can be used, including glass fiber (high strength and cost-effective) and carbon fiber (low loss on ignition).
**SUNWELL P400K:**
This corrosion-resistant expanded graphite packing includes sacrificial anode additives like zinc powder to protect the stem and pump shaft.
**Application Areas:**
1. Expanded graphite packing is suitable for nearly all sealing applications.
2. It is widely used in harsh environments such as hydrogenation equipment, paper mills, power plants, and oil refineries where high temperature and pressure are common.
3. It is ideal for valves, pumps, expansion joints, mixers, and other equipment requiring reliable sealing.
**Important Note:**
Flexible graphite packing is not recommended for use with strong oxidizing media.
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