Braided fiberglass packing T4710

graphitechemical-resistanthigh-temperature

Product overview
ULMAN T4710 is made of expanded graphite foil processed into a highly compressed, flexible and dimensionally stable braid. By combining high-quality graphite foils with glass carrier threads, it provides excellent chemical resistance, high thermal conductivity and outstanding adaptability to shafts and spindles. T4710 combines the advantages of pure graphite rings with the properties of braided compression packings and features a low coefficient of friction so that no leakage is required during operation (in contrast to conventional packings). With the exception of strongly oxidizing media, ULMAN T4710 exhibits very good chemical resistance.

Fields of application
Suitable for sealing pumps and valves in media such as water, steam, superheated steam, petrochemical products, acids, alkalis and solvents. Preferred fields of application include power generation, chemical and petrochemical industries, the pulp and paper industry, as well as plant and mechanical engineering.

Main use
Sealing pumps and valves in aggressive, high-temperature and wide pH-range media.

Materials
Graphite foil braided with glass carrier threads.

Delivery forms and packaging
Delivery forms: 4–25 mm square; other dimensions available on request. Specific density: 1.1 g/cm³ ± 10%. Typical package weights by section size: up to 08 mm – 1 kg; up to 12 mm – 2 kg; up to 16 mm – 4 kg; up to 25 mm – 5 kg.

Characteristics / Technical specifications

• Material: Expanded pure graphite foil with glass carrier threads
• Construction: Highly compressed, flexible, dimensionally stable braided packing
• Chemical resistance: Very good (except strongly oxidizing media)
• Thermal conductivity: High
• Coefficient of friction: Low (reduced leakage requirement during operation)
• Main use: Sealing pumps and valves in water, steam, superheated steam, petrochemical products, acids, alkalis, solvents
• Fields of application: Power generation, chemical & petrochemical industry, pulp & paper, plant & mechanical engineering
• Pressure: 30 dyn. / 300 stat.
• Temperature range: -240 °C to +550 °C
• Speed: up to 30 m/s
• pH range: 1 - 14
• Delivery dimensions: 4–25 mm square (other dimensions on request)
• Specific density: 1.1 g/cm³ ± 10%
• Package weights: up to 08 mm – 1 kg; up to 12 mm – 2 kg; up to 16 mm – 4 kg; up to 25 mm – 5 kg