Graphite Gland Packing is a premium sealing material made from high-purity expanded graphite yarns, reinforced with optional metallic wires such as stainless steel, nickel wire, copper wire, carbon fibers, fiberglass, or other high-strength fibers. This structure provides excellent flexibility, outstanding sealing performance, and long service life under extreme working conditions.
Engineered for high temperature, high pressure, corrosion-resistant applications, graphite packing forms a stable, durable seal for pumps, valves, and rotating equipment. It maintains excellent sealing integrity even under thermal cycling, rapid pressure changes, and aggressive chemical environments.
Technical Information
Temperature Range: -100°C to +800°C (depending on atmosphere)
Working Pressure: Pumps ≤ 30 bar / Valves ≤ 260 bar / Reciprocating pumps ≤ 450 bar
Linear speed: Up to 40 m/s
Density: ~1.3 g/cm³
Product Features
✔ High Temperature Resistance-Withstands continuous temperatures up to 450°C and peak conditions depending on operating environments—ideal for boilers, steam systems, and high-heat industrial applications.
✔ Excellent Corrosion Resistance – The combination of carbon and nickel elements forms a protective anti-oxidation layer, giving strong resistance against acids, alkalis, chemicals, steam, and most industrial fluids.
✔ High Pressure Performance – Offers excellent compressive strength and dimensional stability, ensuring a secure seal under high-pressure dynamic conditions.
✔ Superior Flexibility & Self-Lubrication – Graphite fibers provide natural self-lubricating properties, reducing friction, preventing equipment wear, and ensuring easy installation.
✔ Wear-Resistant & Long Service Life – Resists abrasion and deformation during long-term operation in pumps and valves.
✔ High Thermal Conductivity – Effectively dissipates heat from moving equipment, preventing thermal damage and stabilizing performance.
✔ Customizable Sizes Available – Available in 6 × 6 mm – 30 × 30 mm; special specifications and non-standard sizes can be customized according to drawings or samples.
Applications
Graphite gland packing is widely used across multiple industries, especially in harsh working environments:
- Petrochemical plants
- Power generation & thermal power stations
- Chemical processing industries
- Refining & oil extraction
- Metallurgy and high-temperature equipment
- Steam turbines, boilers, heat exchangers
- Marine engineering & offshore platforms
- Pumps, valves, reaction kettles
- Cryogenic equipment
Suitable for sealing hot water, overheated steam, ammonia solutions, hydrocarbons, thermal oils, low-temperature liquids, and most chemical media except strong oxidizers.
Specifications
6*6mm
8*8mm
10*10mm
12*12mm
14*14mm
16*16mm
18*18mm
20*20mm
22*22mm
24*24mm
25*25mm
30*30mm
50*50mm
Why Choose Our Graphite Gland Packing?
- Made from extremely pure graphite with superior thermal stability.
Self-lubricating, low friction coefficient.
Long service life with reduced maintenance cost.
Resistant to chemicals, fluids, gases, and corrosive media.
Designed for high-speed, high-pressure, high-temperature operation.
Offers exceptional sealing efficiency for extended equipment life.
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