Carbon packing PTFE impregnated acid and alkali resistant

 Carbon Packing Data Sheet 

Carbon packing is a high-performance sealing material braided from carbon fiber yarns and reinforced with a liquid-based impregnation system. This treatment allows the packing to maintain structural integrity under extreme operating conditions while providing smooth operation and reduced wear on shafts and sleeves.

 Key Features 

• · High Thermal Stability: Carbon fibers tolerate elevated temperatures without losing strength, making the packing reliable for continuous service in hot fluids, steam, or thermal cycles.
• · Low Friction & Smooth Running: The impregnation reduces friction at the packing surface, minimizing heat generation and ensuring efficient sealing even at higher shaft speeds.
• · Chemical Resistance: The carbon structure shows strong compatibility with solvents, mild acids, alkalis, and corrosive process streams, maintaining sealing performance across a wide chemical range.
• · Excellent Heat Dissipation: Carbon’s superior thermal conductivity helps move heat away from the sealing area, extending service life and improving operational safety.
• · Dimensional Stability Under Load: The tight braid structure resists extrusion and deformation under pressure, ensuring reliable sealing for pumps and valves operating under demanding conditions.

 Impregnation Benefits 

The liquid impregnation—typically based on specialized carbons, lubricants, or graphite dispersions—enhances:

• · Media resistance
• · Lubricity
• · Start-up smoothness
• · Packing density and durability

This makes the packing suitable for both slow-moving and moderate-speed rotating equipment.

 Typical Applications 

Carbon gland packing is widely used in industries that require a balance of heat resistance, chemical stability, and mechanical durability, including:

1. 1. Chemical Processing Plants：Solvents, corrosive fluids, process chemicals
2. 2. Power Generation：Steam valves, feed pumps, heat-intensive lines
3. 3. Oil & Gas Refining：Hydrocarbon services, high-temp pumps
4. 4. Pulp & Paper：Black liquor, bleaching chemicals
5. 5. Metallurgy & Mining：Hot abrasive slurries and high-load pumping systems
6. 6. Water & Wastewater Treatment：General-purpose pumps and agitators
7. 7. Textile & Dyeing Equipment：Chemical dyes and high-temperature liquids