ダイコー List of Products and Services

The "D1000(GR)" is a gasket packing that can be used on steam lines in factories and flanges of boiler equipment. Unlike conventional products that can withstand temperatures up to 350°C, this product has a higher heat resistance of 450°C, which reduces the likelihood of leaks. Additionally, since it is manufactured in-house, standard size products can be shipped as quickly as the same day, and custom products can be shipped in as little as three days. 【Features】 ■ Usable at high temperatures Unlike conventional products that can withstand temperatures up to 350°C, this product has a higher heat resistance of 450°C, making it less likely to leak. ■ Realization of short delivery times Products in JIS and JPI standard sizes are in stock from 15A to 300A, allowing for same-day shipping. Furthermore, due to in-house manufacturing, custom-sized products can also be shipped in as little as three days.

"D-1000" is a high-performance semi-metallic gasket rationally designed for high temperature and high pressure applications. It consists of a V-shaped cross-section metal hoop and sealing material (various fillers) layered together, tightly wound in a spiral shape, with the beginning and end portions of the hoop fixed by spot welding. Broadly speaking, there are three types: one with inner and outer rings of metal protection, one with only an outer ring of metal protection, and a basic type without any metal protection. Each type is selected based on the type and material of the flange. [Features] - Rationally designed for high temperature and high pressure applications - Has rich elasticity and can regulate tightening force based on installation thickness *For more details, please refer to the PDF document or feel free to contact us.

The "D1000" is a high-performance semi-metallic gasket rationally designed for use in high-temperature and high-pressure environments. It possesses rich elasticity and allows for control of the tightening amount during installation. It is widely used in various fields, including thermal and nuclear power plants, steam piping on steam turbine ships, as well as process lines and thermal oil lines in petroleum refining and petrochemical plants. 【Product Lineup】 ■ Type with metal protective inner and outer rings ■ Type with metal protective outer ring ■ Basic type without metal protection *For more details, please download the PDF or feel free to contact us.

We would like to introduce our "Semi-Metal Gasket." It can be used under high temperature and high pressure conditions similar to metal gaskets while demonstrating excellent sealing performance. We offer the "Nippon Gasket Vortex Gasket" and the metal-based "Vulcan Spiral Gasket," which has been developed based on a rational design for high temperature and high pressure flange sealing materials. Please feel free to contact us when you need assistance. 【Nippon Gasket Vortex Gasket Lineup】 ■T1834R-NA Series ■T1834R-GR Series ■T9090 Series *For more details, please download the PDF or feel free to contact us.

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.

"D4000" is a gasket material that has a long-standing high performance record in Europe, where non-asbestos materials have been advanced, and can be used over a wide temperature range from high to extremely low temperatures. Expanded graphite is a material obtained by treating high-purity graphite crystals with chemicals and then heat-treating them at high temperatures. By inserting stainless steel plates (SUS316) into the core material, it becomes a gasket with excellent mechanical strength. 【Features】 ■ Excellent heat resistance and chemical resistance ■ Sealing performance 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 download the PDF or feel free to contact us.

It is cumbersome to differentiate between gaskets for acidic and alkaline lines. I want to reduce the variety of stock and prevent human errors in selecting the wrong gasket. I want a single solution for all corrosive fluids." This is a significant challenge related to management costs and safety that maintenance personnel in plants handling diverse chemicals constantly face. To meet this ultimate demand, the flagship model of high-performance sheet gaskets developed under the name "universal" is the "Vulcan No. UF300" (Universal Hyper) by Vulcan Co., Ltd. In this article, we will thoroughly explain why the UF300 can be confidently declared as "capable of being used with the widest range of fluids" as the top model in the high-performance sheet series, from its structural secrets to specific data supporting its performance, and the correct knowledge for safe use, all from a professional perspective. *For detailed content of the column, please refer to the related link. For more information, please download the PDF or feel free to contact us.

"I want a highly versatile gasket that can withstand both acidic and alkaline fluids. To avoid contamination of the product, a clean, white, high-performance sheet is necessary." ...In such a chemically demanding environment where higher levels of chemical resistance and cleanliness are required simultaneously, the high-performance sheet gasket "Vulcan No. MF300" (Bright Hyper) developed by Vulcan Co., Ltd. has been created to meet these stringent demands. This article will thoroughly explain why the MF300 is positioned as a higher model within the high-performance sheet series, focusing on its structural secrets, specific data that supports its performance, and the correct knowledge needed for safe use, all from a professional perspective. *For detailed content of the column, please refer to the related link. For more information, please download the PDF or feel free to contact us.*

"When we used a standard gasket on the steam line, it hardened immediately and started leaking." "I want to extend the maintenance cycle around the boiler." To address these urgent issues, especially in environments involving high-temperature steam and hot water, the high-performance joint sheet developed by Vulcan Corporation is the "No.6502 Black Hyper." In this article, we will thoroughly explain why No.6502 has gained immense trust in harsh hot water and steam lines, covering the material technology that supports its performance, the tightening management that must be strictly adhered to for safe use, and the response to special processing, all from a professional perspective. *For detailed content of the column, please refer to the related links. For more information, you can download the PDF or feel free to contact us.*

In the stable operation of plants, ensuring the sealing of utility lines such as water, oil, and steam is extremely important. Especially under high-temperature conditions, the performance of gaskets directly affects the reliability of equipment. The "TOMBO No.1155 Clean Seal Next" provided by Nichias Corporation is a sheet gasket that significantly improves reliability in high-temperature areas, addressing the challenges of conventional fluoropolymer gaskets while primarily composed of PTFE. This article will provide a detailed explanation of its excellent features and performance based on product data. *For more detailed information, you can view it through the related links. For further details, please download the PDF or feel free to contact us.*

"We are troubled by the rapid deterioration of the gaskets in the steam line. With standard joint sheets, hardening due to hot water occurs quickly, necessitating frequent replacements." To address these on-site challenges, Nichias Corporation has developed the steam-resistant reinforced joint sheet gasket "TOMBO No.1993 (Clinsil Super)." In this article, based on technical materials from Nichias, we will thoroughly explain why No.1993 is suitable for steam lines, the secrets behind its excellent performance, the correct selection and usage methods, and how to accommodate special processing. *For detailed content of the column, please refer to the related links. For more information, you can download the PDF or feel free to contact us.*

"In standard joint sheets, deterioration due to heat and steam occurs quickly." "I want higher reliability against corrosive fluids." Responding to such voices from the field is Nichias Corporation's proud high-grade joint sheet gasket, "TOMBO No.1120 (Clean Seal Top)." In this article, based on technical materials from Nichias, we will thoroughly explain why No.1120 is chosen under harsh conditions, the secrets of its excellent performance, the correct selection and usage methods, and how it accommodates special processing. *For detailed content of the column, please refer to the related links. For more information, feel free to download the PDF or contact us.

Special and harsh environments that cannot be addressed by standard gaskets, such as high temperatures exceeding 450°C, extreme low temperatures, or highly oxidative fluids. The sealing performance under such conditions is a critical issue that affects the safety and productivity of the plant. Careless product selection can lead to immediate leakage accidents. In this article, based on technical materials from Nichias Corporation, we will thoroughly explain the correct selection methods for vortex gaskets and metal gaskets in special environments, as well as important points to maximize their performance. *For detailed content of the column, please refer to the related links. For more information, you can download the PDF or feel free to contact us.