ソーワ工業 List of Products and Services

The "S-2900 series" is a low-pressure gasket made from various synthetic rubber sheets that can be used for flanges and equipment in various piping applications. The "S-2940" is pressure-formed from EPDM rubber in a specific cross-sectional shape. Additionally, the "S-2950" is made by pressure and heat forming a PTFE film onto an EPDM rubber molded product, creating a unified bond. It can also be used for resin and resin-lined flanges. 【Product Lineup】 ■ Rubber sheet punched gaskets / S-2900 series ■ EPDM molded gaskets / S-2940 ■ EPDM molded gaskets (PTFE coated) / S-2950 ■ PTFE sheet punched gaskets / S-5000 ■ PTFE wrapped gaskets / S-5000T series ■ Gore Hyper Sheet gaskets *For more details, please refer to the PDF document or feel free to contact us.

This catalog introduces the gasket products handled by our company. We offer a lineup including "joint sheet and rubber sheet gaskets," "PTFE gaskets," and "graphite (expanded graphite) sheet gaskets." In addition to processing mass-produced gaskets using molds and wooden patterns (Thomson molds), we can also flexibly accommodate small orders for custom sizes. [Featured Products] ■ Joint sheet and rubber sheet gaskets ■ PTFE gaskets ■ Graphite (expanded graphite) sheet gaskets ■ Spiral gaskets ■ Fabric gaskets *For more details, please refer to the PDF document or feel free to contact us.

The "S-2500" is a sheet gasket material primarily made from biodegradable inorganic fibers, combined with inorganic fibers and inorganic fillers, and reinforced with aramid fibers. It uses a heat-resistant, oil-resistant synthetic rubber as a binder. It is resistant to scratches, highly flexible, and offers excellent cost performance. It is suitable for various applications, including flanges for piping, valves, pumps, automobiles, and industrial machinery gaskets. 【Features】 ■ Made primarily from biodegradable inorganic fibers ■ Reinforced with aramid fibers, incorporating inorganic fibers and inorganic fillers ■ Uses heat-resistant, oil-resistant synthetic rubber as a binder ■ Size: Thickness 0.4mm to 3.0mm / Standard size 1270mm x 1270mm ■ Operating conditions: Temperature -50°C to 183°C / Pressure up to 3.0MPa *For more details, please refer to the PDF document or feel free to contact us.

The "S-2510" is an oil-swelling type of the heat and oil-resistant joint sheet "S-2500." It has moderate swelling due to oil, excellent sealing properties, is resistant to scratches, and is highly flexible. It has various applications such as gaskets for flanges and valves in various piping systems, pumps, automobiles, and industrial machinery. Please feel free to contact us when you need assistance. 【Features】 ■ Moderate swelling due to oil ■ Scratch-resistant ■ Highly flexible ■ Size: Thickness 0.5mm to 2.0mm / Standard size 1270mm x 1270mm ■ Usage conditions: Temperature -50℃ to 183℃ / Pressure up to 3.0MPa *For more details, please refer to the PDF document or feel free to contact us.

The "S-2520" is a sheet primarily made of expanded graphite, reinforced with biodegradable inorganic fibers and aramid fibers. A heat-resistant oil-resistant synthetic rubber is used as a binder. The expanded graphite material has elasticity and can be tightened further. Additionally, it is resistant to scratches and highly flexible, suitable for use with saturated steam at 3.3 MPa. Please feel free to contact us when you need it. 【Features】 ■ Superior heat resistance (up to 300°C) compared to general-purpose joint sheets ■ Usable with saturated steam at 3.3 MPa ■ Scratch-resistant and highly flexible ■ Size: Thickness 0.5mm to 3.0mm / Standard size 1270mm x 1270mm ■ Usage conditions: Temperature -50°C to 300°C / Pressure up to 4.0 MPa *For more details, please refer to the PDF document or feel free to contact us.

The "S-2900 Series" we handle is a low-pressure gasket made from punched synthetic rubber sheets. The types of rubber include natural rubber (NR), which has excellent wear resistance, as well as nitrile rubber (NBR) and chloroprene rubber (CR). The sizes available are thicknesses of 1.0mm, 1.5mm, 2.0mm, 3.0mm, 4.0mm, and 5.0mm, and they can be used as gaskets for various piping flanges and equipment. 【Features】 ■ Made from punched synthetic rubber sheets ■ Sizes: Thickness 1.0mm, 1.5mm, 2.0mm, 3.0mm, 4.0mm, 5.0mm ■ Operating conditions: Maximum pressure 1.0MPa *For more details, please refer to the PDF document or feel free to contact us.

The S-2940 is a gasket made by press-forming EPDM rubber into a specific cross-sectional shape. It is suitable for piping lines that cannot achieve surface pressure, such as PVC and GL pipes, and can also be used with resin and resin-lined flanges. The size is 3.0mm thick, with standards of 5K-15A to 300A and 10K-15A to 300A; other sizes are available as rubber punched gaskets. 【Features】 ■ Made by press-forming EPDM rubber into a specific cross-sectional shape ■ Usable with resin and resin-lined flanges ■ Size: Thickness 3.0mm / Standards 5K-15A to 300A, 10K-15A to 300A (Other sizes are available as rubber punched gaskets, only for full face) ■ Operating conditions: Temperature -40℃ to 100℃ / Pressure up to 0.98MPa *For more details, please refer to the PDF document or feel free to contact us.

The S-2950 is a gasket formed by pressurized heating of PTFE film onto EPDM rubber molded products, creating a unified bond. It is suitable for piping lines that require chemical resistance and corrosion resistance, where surface pressure cannot be obtained, such as PVC and GL piping, and can also be used with resin and resin-lined flanges. The size is 3.0mm thick, with specifications ranging from 10K-15A to 300A; other sizes are available as PTFE-wrapped gaskets. 【Features】 ■ PTFE film is pressurized and heat-formed onto EPDM rubber molded products, creating a unified bond. ■ Suitable for piping lines that require chemical resistance and corrosion resistance, where surface pressure cannot be obtained, such as PVC and GL piping. ■ Size: Thickness 3.0mm / Specifications 10K-15A to 300A (Other sizes are available as PTFE-wrapped gaskets, only for full face). ■ Operating conditions: Temperature -40℃ to 120℃ / Pressure up to 0.98MPa. *For more details, please refer to the PDF document or feel free to contact us.

The "S-5000" is a gasket made by compressing polytetrafluoroethylene resin molding powder and forming it into sheet form. It excels in heat resistance, cold resistance, non-adhesiveness, electrical properties, and chemical resistance. It can be used in various applications such as gaskets for flanges and valves in piping, pumps, industrial machinery, and electrical insulation materials. 【Features】 ■ Compressed polytetrafluoroethylene resin molding powder formed into sheet form ■ Excellent heat resistance and cold resistance ■ Also excels in non-adhesiveness, electrical properties, and chemical resistance ■ Sizes - Thickness: 0.5mm, 1.0mm, 1.5mm, 2.0mm, 3.0mm - Standard size: 1000mm x 1000mm *For more details, please refer to the PDF document or feel free to contact us.

The "S-5000T series" is a PTFE encapsulated gasket with a PTFE outer layer covering the core material, such as joint sheets. It has a rich lineup including the basic type "S-5000T," the large diameter "S-5010T," and the right angle (for preventing liquid accumulation) "S-5020T." This product is non-contaminating, resistant to chemicals, non-adhesive, and has excellent electrical properties. Please feel free to contact us when you need it. 【Features】 ■ PTFE outer layer encapsulating the core material such as joint sheets ■ Excellent non-contaminating and chemical resistance ■ Superior non-adhesive and electrical properties ■ Sizes: Thickness 1.6mm, 2.8mm, 3.8mm ■ Three types of outer layer shapes available according to application: - Basic type (V-shaped cross-section), large diameter (U-shaped cross-section), right angle (L-shaped cross-section) *For more details, please refer to the PDF document or feel free to contact us.

The "Gore(R) HyperSeal(R)/SGM(R) Gasket" is made of 100% expanded PTFE, offering excellent flexibility and processability, as well as resistance to heat, chemicals, creep, and cleanliness. It has excellent conformability, allowing for easy sealing even on slightly uneven surfaces. Additionally, it has very low thermal creep and can be used in high-temperature areas (up to 315°C). Please feel free to contact us when you need assistance. 【Features】 ■ Made of 100% expanded PTFE ■ Excellent flexibility and processability ■ Combines heat resistance, chemical resistance, creep resistance, and cleanliness ■ Excellent conformability, allowing for easy sealing on slightly uneven surfaces ■ Usable in high-temperature areas (up to 315°C) *For more details, please refer to the PDF document or feel free to contact us.

The "S-5000JS" is a gasket tape made from extruded PTFE in an oval cross-section shape. It excels in heat resistance and chemical resistance, and due to its softness and adhesive tape, it can be easily installed on complex flange surfaces. It can be used for various applications such as piping, tanks, casings, reaction vessels, and large-diameter equipment. Please feel free to contact us when you need assistance. 【Features】 ■ Oval cross-section made from extruded PTFE ■ Comes with adhesive tape ■ Usage conditions ・Temperature: -120℃ to 260℃ ・Pressure: up to 2.0MPa (gas), up to 5.0MPa (liquid) *For more details, please refer to the PDF document or feel free to contact us.

We handle the PTFE sealing tape 'S-5000ST'. This tape is made from unburned PTFE and can be wrapped around pipe threads to prevent leaks. It is easy to seal and has excellent flexibility. Additionally, it is easy to attach and detach, making it highly practical for use on pipe threads and similar applications. Please feel free to contact us if you would like to place an order. 【Features】 ■ Wraps around pipe threads to prevent leaks ■ Easy to seal and highly flexible ■ Easy to attach and detach, with excellent workability ■ Size: Width 13mm, Thickness 0.1mm, Length 15m/roll *1 box (12 rolls) ■ Usage conditions: Apparent density 1.1g/cm3, Tensile strength 11.0MPa *For more details, please refer to the PDF document or feel free to contact us.

The "S-2100 Series" is a spiral wound gasket that uses graphite (expanded graphite) tape as the filler material. It is suitable for harsh conditions such as high temperature, high pressure, extreme low temperatures, and thermal cycles. It can be used in various applications including steam, LNG, cryogenic fluids like liquid nitrogen, pressure vessels, heat exchangers, and valve bonnets. Please feel free to contact us when you need assistance. 【Features】 ■ Uses graphite (expanded graphite) tape as the filler material ■ Sizes: Thickness 3.2mm, 4.5mm ■ Structure: Types with inner and outer rings, types with outer rings, basic type (oval shapes are also available) ■ Material: Metal hoop SUS304, inner and outer rings SPCC (ordinary steel) or SUS304 *For more details, please refer to the PDF document or feel free to contact us.

The "S-2110 Series" is a spiral wound gasket that uses PTFE tape as a filler material. It is suitable for harsh conditions such as high temperature, high pressure, extreme low temperatures, and thermal cycling. It also has excellent chemical resistance, making it suitable for corrosive fluids and acidic environments. It can be used in various applications, including steam, extreme low temperature fluids like LNG and liquid nitrogen, pressure vessels, and heat exchangers. 【Features】 ■ Uses PTFE tape as the filler material ■ Suitable for harsh conditions such as high temperature, high pressure, extreme low temperatures, and thermal cycling ■ Excellent chemical resistance, suitable for corrosive fluids and acidic environments ■ Sizes: Thickness 3.2mm, 4.5mm ■ Structure: Type with inner and outer rings, type with outer ring, basic type ■ Material: Metal hoop SUS304, inner and outer rings SPCC (ordinary steel) or SUS304 *For more details, please refer to the PDF document or feel free to contact us.

The "S-2300P" is a graphite sheet that has been specially treated with natural graphite particles. It features excellent heat resistance and good compatibility with the opposing flange surface. The sizes available are from 0.4mm to 1.5mm in thickness. This product can be used in low-pressure general industries. Please feel free to contact us when you need it. 【Features】 ■ Specially treated natural graphite particles ■ Excellent heat resistance ■ Sizes: Thickness 0.4mm to 1.5mm ■ Operating conditions ・ In a non-oxidizing atmosphere: -200℃ to 800℃ ・ In an oxidizing atmosphere: -200℃ to 450℃ * For more details, please refer to the PDF document or feel free to contact us.

The "S-2300" is a product designed for high temperature and high pressure applications, made from thin steel plates with a core thickness of 0.2mm (0.25mm is also acceptable) that have been processed with hooks, and graphite sheets are bonded to the top and bottom. It is highly elastic, conforms well to the flange surface of the counterpart, and can be bent. Additionally, it has excellent heat resistance and can be used for applications such as steam piping flanges and gaskets for engines and exhausts. 【Features】 ■ Hook processing on thin steel plates with a core thickness of 0.2mm (0.25mm is also acceptable) ■ Graphite sheets bonded to the top and bottom ■ Excellent heat resistance ■ Highly elastic ■ Size: Thickness 1.0mm to 3.0mm / Standard size 1000mm x 500mm *For more details, please refer to the PDF document or feel free to contact us.

The "S-2310S" is a product that features graphite sheets bonded to both sides of a core SUS plate with a thickness of 0.1mm to 0.2mm, coated with a heat-resistant adhesive. It is characterized by its excellent elasticity and good compatibility with the opposing flange surface. It also boasts superior corrosion resistance and heat resistance. Available in thicknesses ranging from 0.5mm to 3.0mm, it can be used in applications requiring high temperatures and strength, such as engines and exhaust systems. 【Features】 ■ Rich in elasticity and well-suited to the opposing flange surface ■ Size: Thickness 0.5mm to 3.0mm ■ Usage conditions - In non-oxidizing atmosphere: -200℃ to 400℃ - In oxidizing atmosphere: -200℃ to 400℃ *For more details, please refer to the PDF document or feel free to contact us.

The "S-4900/4900G" is a gasket tape coated with a heat-resistant rubber compound as a joint material on fiberglass cloth. It has high thermal insulation properties, with a maximum operating temperature of 400°C. It also excels in thermal conductivity, tensile strength, and flexibility. This product can be used for sealing and insulation applications such as manholes, boiler combustion openings, and flanged areas. 【Features】 ■ Coated with a heat-resistant rubber compound as a joint material on fiberglass cloth ■ High heat resistance, excellent thermal conductivity, tensile strength, and flexibility ■ S-4900G: Treated to prevent graphite adhesion ■ Sizes: Shape (circular or square), thickness, and dimensions can be specified *For more details, please refer to the PDF document or feel free to contact us.

The "S-4100S/SG/ST" is a gasket tape coated with a heat-resistant rubber compound as a joint material on a biocompatible fiber cloth. It has high thermal insulation properties, with a maximum operating temperature of 800°C. It can be used for sealing and insulating applications such as manholes, boiler combustion ports, and flange areas. You can specify the shape (circular or square), thickness, and dimensions. Please feel free to contact us when placing an order. 【Features】 ■ Coated with a heat-resistant rubber compound as a joint material on biocompatible fiber cloth ■ S-4100S: Reinforced with SUS wire ■ S-4100SG: Treated to prevent graphite seizing ■ S-4100ST: Special rubber compound *For more details, please refer to the PDF document or feel free to contact us.

The "S-2600" is a sheet that has a steel plate with a single-sided hook bonded to both sides of non-asbestos millboard. It is characterized by high strength and excellent heat resistance. Additionally, it has a low stress relaxation rate, making it suitable for use in applications such as engine exhausts that require strength at high temperatures. The sizes available are thicknesses of 1.2mm, 1.6mm, and 2.0mm. Please feel free to contact us for inquiries. 【Features】 ■ Steel plate with a single-sided hook bonded to both sides of non-asbestos millboard ■ High strength and excellent heat resistance ■ Low stress relaxation rate ■ Sizes: thickness 1.2mm, 1.6mm, 2.0mm ■ Operating conditions: temperature -40℃ to 500℃ *For more details, please refer to the PDF document or feel free to contact us.

Sowa Industrial Co., Ltd. offers "Plain Type Metal Gaskets." These are flat-processed metal gaskets made from high-quality Japanese materials, from raw materials to processing. They can be used in high-temperature and high-pressure conditions where soft gaskets cannot be used, as well as in areas requiring high sealing performance. The usage conditions vary depending on the material, with examples including soft steel, pure iron, copper, stainless steel, aluminum, titanium, and special alloys. 【Features】 ■ High-quality Japanese manufacturing from raw materials to processing ■ Plain type made from flat-processed metal ■ Available for small to large diameters ■ Usage conditions vary by material *For more details, please refer to the PDF document or feel free to contact us.

Sowa Industrial Co., Ltd. offers "Serrated Metal Gaskets." From raw materials to processing, they are high-quality products made in Japan, featuring a plain shape with triangular grooves processed in concentric circles. The usage conditions vary depending on the material. They can be used in high-temperature and high-pressure conditions where soft gaskets cannot be used, or in areas requiring a high level of sealing. 【Features】 ■ High-quality products made in Japan from raw materials to processing ■ Type with triangular grooves processed in concentric circles on a plain shape ■ Compatible with small to large diameters ■ Usage conditions: vary depending on the material *For more details, please refer to the PDF document or feel free to contact us.

Sowa Industrial Co., Ltd. offers "Octagonal Ring Joint Gaskets." These gaskets are made from forged materials and machined into an octagonal cross-section, suitable for high-temperature and high-pressure conditions where soft gaskets cannot be used, as well as areas requiring high sealing performance. We accommodate sizes from small diameters to large diameters. Please feel free to contact us. 【Features】 ■ High-quality Japanese manufacturing from raw materials to processing ■ Machined from forged materials into an octagonal cross-section ■ Accommodates sizes from small diameters to large diameters ■ Usage conditions vary depending on the material *For more details, please refer to the PDF document or feel free to contact us.

Sowa Industrial Co., Ltd. handles "oval-shaped ring joint gaskets." These gaskets are made from forged materials and are machined into an oval cross-section, accommodating sizes from small diameters to large diameters. From raw materials to processing, they are high-quality products made in Japan. Please feel free to contact us when you need assistance. 【Features】 ■ High-quality products made in Japan from raw materials to processing ■ Machined into an oval cross-section from forged materials ■ Accommodates sizes from small diameters to large diameters ■ Usage conditions: Varies depending on the material *For more details, please refer to the PDF document or feel free to contact us.

Sowa Industrial Co., Ltd. handles "various types of O-rings." We can accommodate non-standard dimensions using the continuous heating method. There are no mold costs, and we can also handle small lot orders. We offer a wide range of materials that meet various conditions, from general-purpose materials to high-performance materials. Please feel free to contact us when you need assistance. 【Features】 ■ A variety of sizes that comply with various standards are available ■ Non-standard dimensions can be accommodated using the continuous heating method ■ No mold costs, and small lot orders can also be accommodated ■ A rich selection of materials is available to meet various conditions, from general-purpose materials to high-performance materials *For more details, please refer to the PDF document or feel free to contact us.

The "S-2300" is a gasket sheet that sandwiches thin steel plates with hooked edges (hook processing) between graphite (expanded graphite) sheets and is roll-pressed. It can be used in high-temperature and high-pressure environments, surpassing joint sheets and PTFE sheets. It allows for three-dimensional processing, which is difficult with other sheet gaskets. (Mold required) Additionally, it does not use any adhesives, providing higher strength than sheets with flat plates. Since the raw sheets are manufactured in-house, they offer high quality, short delivery times, and low costs. 【Features】 ■ Usable in high-temperature and high-pressure environments ■ Capable of three-dimensional processing ■ High quality, short delivery times, and low costs due to in-house manufacturing *For more details, please download the PDF or feel free to contact us.

The "S-2500" is a sheet gasket material primarily made from biodegradable inorganic fibers, with added inorganic fibers and inorganic fillers, reinforced with aramid fibers. It uses a heat-resistant, oil-resistant synthetic rubber as a binder. It is resistant to scratches, highly flexible, and has excellent workability, allowing for the production of gaskets in various shapes. Additionally, the base sheets are domestically produced, ensuring high quality, short delivery times, and low costs. There is also a lineup of "S-2520" that can be used at high temperatures (up to 300°C). 【Features】 ■ Excellent heat resistance, flexibility, and workability ■ High quality, short delivery times, and low costs due to domestic production of sheets *For more details, please download the PDF or feel free to contact us.