Expanded graphite is a material obtained by treating high-purity graphite crystals with chemicals and then heat-treating them at high temperatures. It can be used over a wide range from high temperatures to extremely low temperatures.
The Daiko D-4000 is a non-asbestos joint sheet that can cover the practical temperature range of asbestos joint sheets (up to 400°C). Expanded graphite is a material obtained by treating high-purity graphite crystals with chemical agents and then heat-treating them at high temperatures. By incorporating stainless steel plates (SUS316) as a core material, it creates a gasket with excellent mechanical strength. It has a heat resistance level comparable to that of asbestos sheets and possesses excellent corrosion resistance. The D-4000 is a gasket material that has a long-standing excellent track record in Europe, where non-asbestos technology has advanced, and can be used widely from high temperatures to extremely low temperatures. It can be used for gaskets in various piping flanges, valves, equipment, pumps, pressure vessels, heat exchangers, condensers, and more. 【Features】 ■ Sealing and chemical resistance comparable to asbestos joint sheets ■ Excellent corrosion resistance ■ Wide temperature range from high to extremely low temperatures ■ Excellent compressibility *For more details, please refer to the PDF document or feel free to contact us.
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【Pressure Limit】 ■ Water-based fluids: Pressure resistance 2MPa, Operating temperature range -240 to 400℃ ■ Oil-based fluids: Pressure resistance 2MPa, Operating temperature range -240 to 400℃ ■ Gas-based fluids: Pressure resistance 2MPa, Maximum operating temperature 400℃ *For more details, please refer to the PDF document or feel free to contact us.
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【Applications】 ■ Gaskets for flanges, valves, and equipment in various piping systems ■ Pumps, pressure vessels, heat exchangers, condensers *For more details, please refer to the PDF document or feel free to contact us.
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Daiko is a manufacturer specialized in processing various industrial products, including gaskets and packing. With industry-leading processing equipment, including one of Japan's largest water jet cutting machines, and a wide range of materials such as joint sheets, rubber, resin, and metal, we meet our customers' diverse needs. Leveraging the technology and experience we have cultivated over 50 years, we provide high-quality, short-lead-time, and low-cost products to contribute to solving our customers' challenges. To respond to our customers' varied needs, Daiko's production bases are equipped with various processing facilities. Among them, the water jet cutting machines, with a total of four installed at our Osaka headquarters and Tokyo branch, boast one of the largest scales in the country. The maximum processing range is W4,000 × L5,800 mm, allowing for the high-precision manufacturing of large-diameter gaskets and packing. By maximizing material efficiency, we achieve the provision of 'high quality at low cost.'