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At Daiko Co., Ltd., we are offering a gasket fluid compatibility chart! Are you having trouble selecting gaskets and packing? With the transition from asbestos to non-asbestos, it has become difficult to choose the right type. We have compiled a list of compatible products from various manufacturers for your reference, and we hope you find it useful for your selection process. Please note that this is a guideline, and the suitable products may vary depending on the usage conditions, so feel free to contact us for more details.

Nichias: This is a comparison table for fluid compatibility of Vulcargas gaskets. Asbestos joint sheets have versatile properties that allow them to cover a wide range of practical applications due to their excellent heat resistance and pressure resistance. However, as the transition away from asbestos progresses, a certain degree of categorization for usage applications will be necessary. The alternative flow shown below is merely a guideline, but it serves as an example of systematic categorization. Please use it for selection purposes.

This is a compatibility chart for rubber fluids. It lists the compatibility of various types of rubber, including natural rubber, neoprene rubber, NBR rubber, EPDM rubber, Viton rubber, and silicone rubber, with different fluids. While it is only a guideline, it serves as an example of systematic categorization. Please use it for selection purposes.

This catalog is a comprehensive catalog (digest version) featuring products from Daiko Co., Ltd., which manufactures and sells various types of gaskets and industrial products. Our company processes gaskets and packing using a variety of machines, including one of Japan's largest water jet cutting machines (hydro-cutting machines). We also have a wide range of items, including joint sheets, rubber, sponge, and resins. Our original brand, the non-asbestos joint sheet "D-6000," is among our well-developed products. Please utilize the fluid compatibility tables and necessary information for selecting piping and valves! 【Featured Products (Partial)】 ■ Non-asbestos joint sheet D-6000 ■ Graphite spiral wound gasket D-1000 ■ Teflon cushion gasket D7000 ■ SGM soft Teflon gasket ■ Rubber packing, etc. *This PDF is a digest version. If you need the full version, please feel free to contact us.

This catalog is a comprehensive catalog (digest version) featuring products from Daiko Co., Ltd., which manufactures and sells various types of gaskets and industrial products. Our company processes gaskets and packing using various machines, including one of Japan's largest water jet cutting machines (hydro cutting machines). We have a wide range of items, including joint sheets, rubber, sponge, and resins. We also offer our original brand non-asbestos joint sheet "D-6000" and other products tailored to domestic manufacturers such as Nichias and Bulker. Please utilize the fluid compatibility charts and necessary information for selecting piping and valves! 【Featured Products (Partial)】 ■ Non-asbestos joint sheet D-6000 ■ Graphite spiral wound gasket D-1000 ■ Teflon cushion gasket D7000 ■ SGM soft Teflon gasket ■ Rubber packing, etc. *This PDF is a digest version. If you need the full version, please feel free to contact us.

The selection of rubber materials is an extremely important process that determines the performance, lifespan, and safety of a product. However, with a wide variety of options available, from natural rubber to fluorine rubber, it is not easy to judge "which rubber is the most suitable." This article serves as a comprehensive guide that consolidates information about seven major types of industrial rubber that have been individually explained so far. By deeply exploring the unique "personalities" of each material, focusing on their core characteristics and operating temperatures, we hope to assist you in making more informed material selections. We will also provide insights from the perspective of the specialized trading company Daiko, covering everything from optimal material selection to precision 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.

In the fields of mechanical design and maintenance, the selection of "dimensional standards" for O-rings is unavoidable. We will systematically explain the meanings and applications of various symbols, including JIS standards (P, G, V), AS568, and ISO standards. If you have a physical item but don't know the standard, or if the standard is not listed on the drawing, please leave it to us at Daiko for your selection requests. *You can view the detailed content of the column through the related links. For more information, please download the PDF or feel free to contact us.

Oil leaked from the gaps in the machine, causing the line to stop." "The adjustment screw of the precision equipment became loose, resulting in unstable quality." When we delve into the causes of these serious troubles, we often find that they can be traced back to a single faulty "O-ring." O-rings are extremely important mechanical components that govern the "sealing (leak prevention)" and "operability (friction resistance)" of various machines, ranging from the aerospace industry to semiconductor manufacturing equipment, and even everyday gas appliances. Despite their simple circular shape, O-rings are designed based on advanced material chemistry and physical laws. Choosing the wrong material can lead to a loss of function in an instant, potentially putting the entire expensive equipment at risk. This article will explain the true importance of the O-ring as a component and the essential principles of "material selection" to protect machinery. *For more details on the column, please refer to the related links. For further information, feel free to download the PDF or contact us directly.

"The gasket removed during maintenance has no damage; can it be reused?" "I want to reuse a packing that has been used once to reduce costs." This is a common concern on site, but to put it simply, reusing gaskets is absolutely not allowed. Major manufacturers also stipulate that "gaskets are disposable (one-way) parts" as a principle. Why is it not permissible to reuse them even if they look clean? In addition to the physical mechanisms that can cause leaks due to reuse, we will also explain the risks of "asbestos" lurking in old equipment. *For detailed content of the column, you can view it through the related link. For more information, please download the PDF or feel free to contact us.*

"SUS304" is widely used in everything from household items to industrial equipment, to the extent that it is often referred to as "the quintessential stainless steel." From spoons and forks to building exteriors and piping in chemical plants, why is SUS304 continuously chosen? The reason is simply that "the balance of performance and cost is exceptionally good." In this article, we will explain the "three strengths" of SUS304 and the decisive differences between it and the higher-grade SUS316. *For detailed content of the column, please refer to the related link. For more information, feel free to download the PDF or contact us directly.*

In the design of industrial machinery and analytical instruments, selecting the right materials for "covers" and "windows" to ensure internal visibility is crucial. Glass poses a risk of breaking and is too heavy, while polycarbonate does not fit the budget. In such cases, "acrylic resin (PMMA)" becomes a balanced option. This time, we will introduce three technical features that make acrylic suitable for industrial equipment, as well as precision processing services provided by Daiko Co., Ltd. *For detailed content of the column, you can view it through the related links. For more information, please download the PDF or feel free to contact us.*

There are many types of plastic materials, but nothing surpasses "polyvinyl chloride (PVC)" in terms of cost-performance balance. From water pipes to industrial tanks and building materials. Why is PVC still chosen so consistently? Here, we will explain five technical features that are supported in design and construction. *For more detailed information, you can view the related links. For further details, please download the PDF or feel free to contact us.*

In piping work, fittings that are always installed with future maintenance in mind are called "unions." Unlike regular fittings, which cannot be removed without cutting once connected, unions have the significant advantage of being "removable at any time." In this article, we will explain the mechanism of unions, the correct installation methods, and the importance of "packing" and "seal tape" in preventing leaks. *For detailed content of the column, you can view it through the related links. For more information, please download the PDF or feel free to contact us.*

When selecting plastic materials, have you ever faced the challenge of wanting "transparency to see the contents, but being afraid of breaking with glass or acrylic"? A suitable answer is polycarbonate (PC). In this article, we will explain polycarbonate, which boasts top-class impact resistance among engineering plastics, including its incredible strength, advantages and disadvantages, and points to note during processing. *For detailed content of the column, please refer to the related links. For more information, please download the PDF or feel free to contact us.*

In the world of industrial gaskets, "copper" is an essential material for handling "heat" and "electricity." However, there are two main grades of copper gaskets: "C1100 (tough pitch copper)" and "C1220 (phosphorus deoxidized copper)," and choosing the wrong one can lead to issues such as "cracking at the weld" or "not achieving the expected conductivity." In this article, Daiko Co., Ltd., a specialized manufacturer of industrial gaskets, explains the differences between these two copper grades and the importance of "annealing (softening treatment)" that dramatically enhances the sealing performance of copper gaskets. *For more detailed information, you can view the related links. For further inquiries, please feel free to download the PDF or contact us.*

"Nylon (Polyamide)" is widely used as an engineering plastic with excellent wear resistance and heat resistance, ranging from automotive parts to everyday goods. However, are you accurately understanding and selecting the differences between the representative grades "Nylon 6 (PA6)" and "Nylon 66 (PA66)"? In this article, we will explain the two decisive differences (heat resistance, water absorption, impact strength) as well as "plant-based Nylon 11" and "low water absorption Nylon 12," which have recently attracted attention as 3D printer materials. *For detailed content of the column, you can view it through the related links. For more information, please download the PDF or feel free to contact us.

When it comes to gaskets with strong heat and chemical resistance, fluororubber (FKM) is the common knowledge in many fields. However, even fluororubber has environments that can be a 'pitfall' where it can 'degrade in a short period of time.' These are the lines of 'steam (water vapor)' and 'strong alkali.' In this article, we will explain the special grade 'IF-900-AF (Aflas/FEPM)' produced by Iruma River Rubber, which overcomes the weaknesses of conventional fluororubber and achieves long life in harsh steam and chemical lines. *For detailed content of the column, please refer to the related link. For more information, feel free to download the PDF or contact us.

As a countermeasure against oil leaks in hydraulic equipment and transformers, the highly trusted "Three Sheet Packing (Viscous Body Impregnated Sheet Gasket)" is available. This special gasket manufactured by ThreeBond is a revolutionary material that combines the "ease of handling of solid sheets" with the "sealing properties of liquid gaskets." In this article, Daiko Co., Ltd. will explain the mechanism of the Three Sheet, the differentiation of four types according to surface pressure (H type, S type, T type, F type), and detailed selection criteria. *For more details on the column, you can view it through the related link. For more information, please download the PDF or feel free to contact us.