東京興業貿易商会 List of Products and Services

"SIGMA" exhibits a significantly higher level of sealing performance when used with corrosive chemical substances compared to conventional materials. Developed for processes ranging from -268°C to +260°C, it is suitable for sealing chemicals across the entire pH range (0 to 14). It combines excellent chemical resistance of PTFE with dimensional stability that leads to improved retention of tightening pressure. 【Features】 ■ Exhibits a high level of sealing performance ■ Suitable for sealing chemicals across the entire pH range (0 to 14) ■ Non-stick properties significantly reduce repair time during shutdowns ■ Demonstrates excellent release properties after use ■ All components meet food standards *For more details, please refer to the PDF document or feel free to contact us.

The "TK Joint Sheet and Gasket" is a gasket material manufactured under strict quality control by the TKBS Group companies in Japan. Our lineup includes "TK#91," which can handle saturated steam, as well as versatile types like "TK#81" and "TK#711," known for their flexibility and processability. We continuously improve our quality to meet customer demands and develop a range of products that can withstand harsh conditions and applications, from low-temperature fluids to high-temperature, high-pressure fluids and saturated steam. 【Heat-resistant Sheet TK#91 Features】 ■ 100% asbestos-free product that can be used under harsh conditions such as high-temperature, high-pressure saturated steam ■ Highly flexible ■ Resistant to scratches ■ Excellent handling properties ■ Capable of producing seamless gaskets up to a maximum outer diameter of 2520mm *For more details, please refer to the PDF document or feel free to contact us.

"Thermiculite#866" is a sheet-like gasket primarily made of vermiculite, treated with special chemical agents and molded with an inorganic binder, capable of withstanding temperatures up to 1000°C. Since its composition consists entirely of inorganic materials, it does not generate reducing gases like glass seals. In addition to its thermal stability, which can withstand thermal expansion differences and deformation due to stress between stack components during thermal cycling operations, the gasket material itself exhibits excellent chemical stability, allowing for long-term stable sealing. 【Features】 ■ A sheet-like heat-resistant gasket that contains no organic binders at all ■ Maintains heat resistance of 1000°C even in oxidizing atmospheres ■ As it is made of inorganic materials, it does not cause catalyst contamination or chemical reactions even at high temperatures ■ Sealing performance remains unchanged under thermal cycling conditions from high to low temperatures ■ Highly flexible and easily cut into any desired shape *For more details, please refer to the PDF document or feel free to contact us.

"Flexitallic Thermiculite" is a high-performance gasket that solves sealing problems under high-temperature conditions. It maintains a high level of surface pressure even at 500°C and does not oxidize like graphite. Additionally, it has the same workability as conventional sheet gaskets and offers excellent chemical resistance. We offer a lineup of "Severe Conditions #800 Series" and "High Performance #700 Series," which can be combined with a wide range of metals. [Features] - Maintains a high level of surface pressure even at 500°C - Safe against fire - Low content of soluble halogen compounds - Exhibits complete sealing performance under high temperatures, comparable to asbestos - Maximum operating pressure: 20MPa (#815), 14MPa (#715) *For more details, please refer to the PDF document or feel free to contact us.

"Vermiculite #815" is a cut gasket that can be combined with various hoop materials (SUS304/316, etc.). At temperatures above 400°C, even high-temperature resistant expanded graphite can oxidize and disappear, but products made from this vermiculite material can withstand up to approximately 1000°C without oxidizing. 【Features】 ■ Can withstand up to approximately 1000°C without oxidizing ■ Superior chemical resistance compared to graphite ■ Safe against fire ■ Can be combined with various hoop materials (SUS304/316, etc.) ■ Capable of processing various shapes and sizes *For more details, please refer to the PDF document or feel free to contact us.

"Thermiculite #835" is a spiral gasket that can be used for high temperature and high pressure applications. The temperature range is from cryogenic to 1000°C, and the pressure range is from Class #150 to Class #2500. We also accommodate various standards and custom manufacturing. Please feel free to contact us when needed. 【Features】 ■ High temperature and high pressure applications ■ Compatible with various standards, custom manufacturing available ■ Temperature range: cryogenic to 1000°C ■ Pressure range: Class #150 to Class #2500 *For more details, please refer to the PDF document or feel free to contact us.

"Thermiculite #715" is a cut gasket that, like joint sheets, has excellent workability. It does not oxidize even at high temperatures and has heat resistance from low temperatures up to approximately 400°C. The pressure range is from Class #150 to Class #300. It can accommodate a variety of applications and can be processed into various shapes and sizes. 【Features】 ■ Does not oxidize even at high temperatures ■ Heat resistance from low temperatures up to approximately 400°C ■ Alternative to graphite ■ Excellent workability, similar to joint sheets *For more details, please refer to the PDF document or feel free to contact us.

The "Thermiculite #735" is a spiral gasket with extensive chemical resistance. Like conventional sheet gaskets, it is easy to process. It can be shaped into various forms and sizes, making it suitable for a wide range of applications. This product is available in sheet type "#815" and SWG/camprofile type. 【Features】 ■ Same type as conventional compressed fiber sheets ■ Does not oxidize ■ Extensive chemical resistance ■ Safe against fire ■ Easy to process like conventional sheet gaskets *For more details, please refer to the PDF document or feel free to contact us.

"Thermiculite866" is a high-quality sealing material used in SOFC (Solid Oxide Fuel Cells). It uses chemically exfoliated vermiculite as the main raw material, developed and patented by Flexitallic, and possesses excellent sealing properties and heat resistance. It is suitable for high-temperature use as it does not contain organic materials. 【Features】 ■ Demonstrates excellent performance in various applications ■ Maintains stable sealing properties over the long term ■ Heat resistance up to 1000°C ■ No thermal degradation at SOFC operating temperatures ■ Excellent flexibility and compressibility *For more details, please refer to the PDF document or feel free to contact us.

"SIGMA588" is a PTFE sheet gasket that is resistant to high concentrations of acidic and alkaline fluids. It features a unique structure with a solid PTFE core surface coated with foamed PTFE. It demonstrates high sealing performance with low pressure even on rough flanges. This product is suitable as an alternative to cumbersome large enveloping gaskets. 【Features】 - Unique structure with a solid PTFE core surface coated with foamed PTFE - High sealing performance with low pressure even on rough flanges - Resistant to high concentrations of acidic and alkaline fluids - Suitable as an alternative to cumbersome large enveloping gaskets - Non-filler *For more details, please refer to the PDF document or feel free to contact us.

"SIGMA533" is a versatile type of PTFE sheet and gasket with a wide range of durability. The material is PTFE with a biaxial crystalline structure containing barium sulfate. It is resistant to strong alkaline solvents, other general chemicals, and aqueous hydrofluoric acid at concentrations of 49% or less. It is suitable for applications that dislike contamination from food, pharmaceuticals, and other sources. 【Features】 ■ Versatile type with a wide range of durability ■ Suitable for applications that dislike contamination from food, pharmaceuticals, and other sources ■ Resistant to strong alkaline solvents and other general chemicals ■ Resistant to aqueous hydrofluoric acid at concentrations of 49% or less ■ Not suitable for molten alkali metals or fluorine gas *For more details, please refer to the PDF materials or feel free to contact us.

"SIGMA511" is a PTFE sheet gasket that excels in compression characteristics and demonstrates high sealing performance. It is resistant to all concentrations of sulfuric acid, from strong acids (excluding hydrofluoric acid) to general chemical substances. The material is a biaxially oriented crystalline structure PTFE containing silica. This product is WRAS approved for use with hot and cold drinking water. 【Features】 ■ Excellent compression characteristics and high sealing performance ■ Resistant to strong acids (excluding hydrofluoric acid) and general chemical substances ■ Resistant to all concentrations of sulfuric acid ■ Not suitable for molten alkali metals, fluorine gas, or hydrofluoric acid ■ WRAS approved for use with hot and cold drinking water *For more details, please refer to the PDF document or feel free to contact us.

The "SIGMA500" is a PTFE sheet gasket that demonstrates high sealing performance even under low bolt loads. It is resistant to moderate concentrations of acids, caustics, chlorine, and hydrogen peroxide, and can be used with various concentrations of sulfuric acid. The material consists of a biaxially oriented crystalline structure PTFE containing micro-particle hollow glass. It is suitable for glass-lined equipment and piping flanges. 【Features】 ■ High sealing performance even under low bolt loads ■ Suitable for glass-lined equipment and piping flanges ■ Resistant to moderate concentrations of acids, caustics, chlorine, and hydrogen peroxide ■ Can be used with various concentrations of sulfuric acid ■ WRAS approved for hot and cold drinking water *For more details, please refer to the PDF document or feel free to contact us.