栗本鐡工所　建材事業部 List of Products and Services

"Spiral ducts" are products that offer excellent rationalization for air conditioning and exhaust duct work in offices and residences, with outstanding quality and cost-effectiveness. They have the following excellent features: - High strength The flanges that form the spiral duct have a high reinforcement effect, making them suitable for high-speed ducts, dust collection ducts, and smoke exhaust ducts. - Low friction loss and leakage Spiral ducts have high roundness and a smooth inner surface, resulting in extremely low resistance. Additionally, they are equipped with sturdy lock seams formed by machine processing, and it is known that their leakage is only about 1/1000 compared to square ducts. - Quick construction time The connection work for spiral ducts is simple, and their ease of installation in ceilings and other areas significantly reduces construction time. Furthermore, because they are manufactured in factories, their quality is stable, ensuring reliability in construction. - High cost-effectiveness Spiral ducts are mass-produced as standard products in factories, making them inexpensive. Additionally, they can deliver the required air volume with a smaller surface area compared to square ducts, which reduces insulation construction costs. *For more details, please refer to the related links or feel free to contact us.*

• Duct related equipment
• Piping and electrical wiring materials

The "oval duct" is a duct made of hot-dip galvanized steel sheets that conform to JIS G3302, used for straight pipes and irregular pipes. Connections are made by inserting fittings into the straight pipes and securing them with screws (to prevent disconnection), followed by caulking treatment and wrapping with duct tape or similar materials to prevent leakage. Additionally, the insertion length for irregular pipes is set at S=50mm for all sizes. *For more details, please refer to the related links or feel free to contact us.*

• Duct related equipment
• Piping and electrical wiring materials

The "Stainless Steel Straight Seam Duct" is used in various applications due to its excellent corrosion resistance, heat resistance, and weather resistance. ● Exhaust from various factories (semiconductors, chemicals, pharmaceuticals, food factories, etc.) ● Dust collection exhaust ● Clean room exhaust ● Outdoor piping, etc. ● Helium exhaust pipes (quench pipes) attached to MRI machines ◆ Compared to general steel pipes, it is lighter, with a weight reduction of about 1/3. Example) Stainless steel pipe Sch5S 300A, pipe thickness 4.0mm, 31.3kg/m Our straight seam duct, 300φ, pipe thickness 1.0mm, weighs 7.5kg/m ◆ Its lightweight nature compared to general steel pipes improves workability and simplifies support and supporting materials, allowing for a reduction in total costs. ◆ We can also extract drawings from construction plans and provide layout drawings. This can reduce processing time on-site and material waste. ◆ We can provide various fluororesin coating specifications, so please feel free to consult with us. *For more details, please refer to the related links or feel free to contact us.

• Duct related equipment
• Piping and electrical wiring materials

"Flexible Duct - Silent Flex" is a product of Kurimoto Limited, which manufactures and sells spiral ducts and various types of flexible ducts. Starting with the "Flexible Duct," made of lightweight and flexible non-combustible metal materials compared to spiral ducts, there are also products such as the thermal insulation and soundproofing flexible duct "Silent Flex," and the steel wire-reinforced flexible duct "LamiX Ex." [Contents] ■ Flexible Duct ■ Silent Flex ■ LamiX Ex ■ Alshix *For more details, please refer to the related links or feel free to contact us.

• Duct related equipment
• Piping and electrical wiring materials

The "Soundproof Duct System" includes products such as the "Easy Box," which achieves a good air volume balance without the need for an air volume adjustment mechanism at the outlet, as well as the "Anemo Box" and "Super Silencer," which possess many excellent features such as sound absorption, thermal insulation, fire resistance, and cost-effectiveness. *For more details, please refer to the related links or feel free to contact us.*

• Duct related equipment

The "Super Spiral Straight Pipe" is a highly cost-effective pipe created by gathering the essence of spiral pipe technology, constructed solely in a flanged format without welding. It can be used in various applications such as waste treatment plants, chemical plants, paper mills, wood processing plants, grain drying plants, etc. *For more details, please refer to the related links or feel free to contact us.*

• Duct related equipment
• Piping and electrical wiring materials

The "Koruair Duct" is an air conditioning and exhaust duct made from recycled paper and aluminum foil. By combining a cardboard surface with excellent insulation properties, with a thickness of 8mm, and a fire-resistant, moisture-proof aluminum foil with a thickness of 20μm, we have achieved a good balance of performance and cost for air conditioning ducts. Additionally, it is about 1/5 the weight of steel ducts while maintaining insulation properties, is easy to process, and the CO₂ emissions during production are about 1/4 compared to traditional steel ducts, making it an environmentally friendly duct. 【Features】 - No insulation work is required, making installation simple and contributing to cost reduction and shorter construction periods. - No burrs are generated, ensuring safe installation. - Excellent design suitability for exposed ducts and PDD methods. - Cardboard is recyclable. *For more details, please refer to the related links or feel free to contact us.

• Duct related equipment
• Piping and electrical wiring materials

The "Odor Vent Pipe" is a product coated with corrosion-resistant PVC resin on the inner and outer surfaces of a straight seam pipe. It is recommended for use in disposal wastewater treatment facilities and wastewater reuse systems in high-rise residential buildings and commercial establishments (such as restaurant kitchens) to counteract corrosion caused by hydrogen sulfide and other substances generated from the wastewater treatment layer. Since it uses a straight seam pipe with a thickness of 1.6mm, there is no concern about cracking due to impact. Additionally, it is very lightweight compared to SGP steel pipes, which allows for lighter support materials and shorter on-site construction times, thereby reducing total costs. 【Features】 ■ The PVC resin coating offers excellent corrosion resistance. ■ Recommended for counteracting corrosion from hydrogen sulfide and other substances generated from the wastewater treatment layer. *For more details, please refer to the related links or feel free to contact us.

• Duct related equipment
• Piping and electrical wiring materials

The "Winding Pipe for Sleeves" can be used as a disposable mold, eliminating the need for removal and chipping. It includes various materials such as "Beam Sleeves" and "Wall Sleeves" made of galvanized steel plates, as well as "Deck Plate Floor Sleeves," among others. There are many diverse and versatile options available. Please select the product according to your needs. 【Options for Winding Pipes for Sleeves】 ■ Beam Sleeve ■ Wall Sleeve ■ Actual Pipe Sleeve ■ Rubber Ring Joint, etc. *For more details, please refer to the related links or feel free to contact us.

• others

The "Premium Spiral Duct" is a product that is highly resistant to water and oil leakage, making it recommended for oil mist and rainwater countermeasures. It can be used for various applications, including preventing oil leaks from exhaust systems in restaurants, as exhaust ducts for oil mist, steam, and odors in factories, laboratories, and hospitals, as well as for rainwater intrusion prevention in outdoor piping. The air leakage rate of the straight pipe is approximately 1/1000 of our standard product, the "Spiral Duct." 【Features】 ■ Highly resistant to water and oil leakage ■ Recommended for oil mist and rainwater countermeasures *For more details, please feel free to contact us.

• Duct related equipment
• Piping and electrical wiring materials