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High-Temperature Graphite Gland Packing

Ultra-high temperature packing is woven from high-quality synthetic fiber with stainless steel wire, nickel wire, and graphite. It has a fine structure and has the advantages of good high temperature and high-pressure resistance, low thermal conductivity, and non-combustibility. Under certain circumstances, the instantaneous max. temperature resistance can reach 1400°C. Ultra-high temperature packing is widely used in water, steam, and other media in harsh environments with ultra-high temperatures and high pressure. It is used for thermal insulation, fire protection of pipelines, etc., and static sealing of containers, heaters, manholes, furnace door heaters, high-temperature flanges, etc. It performs well under high-temperature working conditions in steel plants and is recommended for blast furnace combustion valves in steel plants.

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  • High-Temperature Graphite Gland Packing
  • High-Temperature Graphite Gland Packing

The High-Temperature Nano-Graphite Gland Packing is engineered using high-purity expanded graphite yarns reinforced with structural fibers and impregnated with a proprietary nano-scale graphite dispersion. This specific manufacturing process fills the microscopic voids between the graphite fibers, significantly reducing frictional heat generation and enhancing the cross-sectional density of the packing. By integrating nanotechnology, this sealing solution addresses fluid leakage under high-pressure steam and chemical processing environments.

Primary Features and Performance

  • Thermal Conductivity: The nano-graphite particles facilitate rapid heat dissipation away from the shaft surface, preventing premature packing hardening in high-speed rotary applications.
  • Self-Lubricating Properties: Provides a low coefficient of friction, which minimizes pump shaft wear and reduces the power consumption of industrial motors.
  • Chemical Resistance: Maintains structural integrity across a pH range of 0-14, excluding strong oxidizing agents, making it suitable for corrosive medium sealing.
  • Volume Stability: Exhibits minimal weight loss and volume shrinkage at elevated temperatures, ensuring long-term sealing reliability and reducing the frequency of gland adjustments.

Technical Specifications

Parameter Value Unit
Temperature Range -200 to +650 °C (Steam)
Pressure Limit (Rotary) 3.0 MPa
Pressure Limit (Reciprocating) 10.0 MPa
Pressure Limit (Valves) 30.0 MPa
pH Range 0 - 14 pH
Linear Speed 20 m/s
Carbon Content ≥ 99 %

Industrial Applications

This packing is utilized in superheated steam valves, high-pressure feed pumps, and chemical agitators. It serves as an essential component for power plant sealing systems, petrochemical refineries, and metallurgy facilities where high-temperature graphite seals are required to prevent fugitive emissions. It is specifically designed for boiler feed pump packing applications where conventional graphite may fail due to oxidation or mechanical stress.

Frequently Asked Questions

How does nano-graphite packing prevent shaft scoring in high-speed pumps?

The High-Temperature Nano-Graphite Gland Packing utilizes nano-scale particles to create a smoother contact interface compared to standard expanded graphite. This reduces the mechanical friction between the packing and the shaft. As a specialized manufacturer, Jiangsu Jintai Sealing Technology Co., Ltd. (founded in 2004 in Taixing, Jiangsu) ensures that our Nofstein brand products undergo rigorous scientific monitoring. By adopting advanced manufacturing processes, our packing maintains a stable lubrication film, which effectively mitigates shaft sleeve abrasion even during high-speed rotation.

What are the advantages of using nano-enhanced seals in high-pressure steam applications?

Nano-enhanced seals provide superior impermeability and thermal stability. Unlike standard seals, the nano-graphite fills internal porosities to prevent "wicking" of pressurized fluids. Jiangsu Jintai Sealing Technology Co., Ltd., a comprehensive sealing technology enterprise, has achieved CCS classification society quality system identification and passed the national nonmetal test. Our Nofstein brand focuses on technological innovation, developing materials that adapt to changing market needs. This ensures that our packing remains resilient under the thermal cycling common in shipping, power, and chemistry industries.

Is this product compliant with international environmental and safety standards?

Yes, our products have passed the CiT test for environmental protection and the Chinese Academy of Coal Sciences test. Jiangsu Jintai Sealing Technology Co., Ltd. has established sound quality management manuals and collaborated with foreign well-known brands such as Garlock and Flexitallic. Since our sealing technology industrial park was put into production in 2013, we have focused on producing environment-friendly asbestos-free gaskets and high-performance packing. Through our professional foreign trade group, we export these certified Nofstein sealing solutions to Eastern Europe, Southeast Asia, and Africa, meeting global safety requirements for industrial leakage control.

For detailed technical consultations regarding sealing solutions for pneumatic and hydraulic systems, contact our engineering team at Jiangsu Jintai Sealing Technology Co., Ltd. today.

Specifications

Temperature 1400℃
Chemical properties PH 2-12
Pressure resistance Valve 400bar
Line speed 2m/s

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Jiangsu Jintai Sealing Technology Co., Ltd.
Jiangsu Jintai Sealing Technology Co., Ltd.
Jiangsu Jintai Sealing Technology Co., Ltd. is China High-Temperature Graphite Gland Packing Manufacturers and Wholesale High-Temperature Graphite Gland Packing Factory, we are a large comprehensive sealing technology enterprise, we specialize in researching, manufacturing and selling various types of seals, environment-friendly asbestos-free gaskets, specialized rubber material products and parts insulation materials for pneumatic and hydraulic systems. Moreover, we have formed a complete set with many industries such as shipping, power, iron and steel, chemistry, and machinery for many successive years.
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High-Temperature Graphite Gland Packing Industry knowledge

How do high-temperature graphite fillers demonstrate their extraordinary value in the face of extreme working conditions?

In the modern industrial field, with the continuous advancement of technology and increasingly stringent production requirements, the demand for high-performance, high-temperature resistant and corrosion-resistant sealing materials is growing. As a leader in this field, Jiangsu Jintai Sealing Technology Co., Ltd. is gradually becoming a benchmark enterprise in the industry with its deep accumulation and continuous innovation in the field of high-temperature graphite fillers, providing solid technical support and product guarantees for many key industries such as shipping, electricity, steel, chemical industry, machinery, etc.

High-temperature graphite filler, as a new material that integrates high-temperature stability, excellent thermal conductivity, good sealing and environmental protection, has unique properties that make it show extraordinary application value under extreme working conditions. The graphite particles modified by technology not only retain the original layered structure and high lubricity of graphite, but also greatly improve its stability and sealing effect in high-temperature environments. This filler can effectively resist thermal expansion, oxidation and corrosion at high temperatures, ensure the long-term stable operation of the sealing system, reduce maintenance costs, and extend the service life of equipment.

Jiangsu Jintai Sealing Technology Co., Ltd. is well aware of the importance of technological innovation to the development of enterprises, and has long been committed to the research and development and production of high-temperature graphite fillers. The company has a research and development team composed of industry experts and senior engineers, constantly breaking through technical bottlenecks and optimizing product performance. By introducing internationally advanced production equipment and testing instruments, it ensures that each batch of products can meet the highest industry standards. The company has also established a complete quality control system, from raw material procurement, production and processing to finished product inspection, every link is strictly controlled to ensure stable and reliable product quality.

In the shipbuilding industry, high-temperature graphite fillers have become the preferred material for sealing key parts such as ship engines and boilers due to their excellent high temperature resistance and seawater corrosion resistance, effectively improving the safety and reliability of ships. The power industry uses its excellent thermal conductivity to optimize the heat dissipation system of power generation equipment and improve energy conversion efficiency. In the steel and chemical fields, facing harsh environments such as high temperature, high pressure, and strong corrosion, high-temperature graphite fillers have shown an irreplaceable role and ensured the continuous and stable operation of the production line.

In the face of the world's high attention to environmental protection and sustainable development, Jiangsu Jintai Sealing Technology Co., Ltd. has actively responded and continuously promoted the green and intelligent development of high-temperature graphite fillers. On the one hand, the company is committed to developing more environmentally friendly production processes and recyclable products to reduce the impact on the environment; on the other hand, through intelligent transformation and digital transformation, it improves production efficiency and product intelligence, and provides customers with a more customized and efficient service experience.

Jiangsu Jintai Sealing Technology Co., Ltd. is leading the future development of the high-temperature graphite filler industry with its leading technical strength, excellent product quality and wide market application. With the continuous advancement of technology and the continuous growth of market demand, Jiangsu Jintai will continue to play an important role in future development and contribute more to promoting industrial progress and sustainable development.