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In the field 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. *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.

Oil leaked from the gaps in the machine, causing the line to stop." "The adjustment screw of the precision equipment became loose, leading to 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 (sliding 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 rules for "material selection" to protect machinery. *For more details, please refer to the related links. You can download the PDF for more information or feel free to contact us.

In factory equipment management and product traceability, there is currently a shift away from "labels" and "ink printing." The background to this is the wave of digitalization (DX) and the need to respond to harsh on-site environments. Considering the trends in the industrial sector and the challenges on the ground, we propose a new management method utilizing the advanced device "Keyence MD-U1000C" introduced by Daiko Co., Ltd. *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.*

"The gasket removed during maintenance is undamaged, so can't we reuse it?" "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, I will also explain the risks of "asbestos" lurking in old equipment. *For more details on the column, you can view it through the related link. For more information, please feel free to download the PDF or contact us.*

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

In the design of industrial machinery and analytical devices, selecting materials for "covers" and "windows" that ensure internal visibility is important. Glass poses a risk of breaking and is too heavy, while polycarbonate is not cost-effective. 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 more details on 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 the balance between cost and performance. From water pipes to industrial tanks, and even construction materials. Why is PVC still chosen so consistently? We will explain five technical features that are supported in design and construction sites. *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.*

In piping work, fittings that are always installed with future maintenance in mind are called "unions." Unlike regular fittings that "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 "gaskets" and "seal tape" in preventing leaks. *For detailed content of the column, please refer to the related links. For more information, feel free to download the PDF or contact us.

When selecting plastic materials, have you ever faced the challenge of wanting "transparency to see the contents, but being afraid of breakage with glass or acrylic"? The optimal solution for this is polycarbonate (PC). In this article, we will explain polycarbonate, which boasts top-class impact resistance among engineering plastics, along with its incredible strength, advantages and disadvantages, and points to consider during processing. *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.*

In the world of industrial gaskets, the essential material for handling "heat" and "electricity" is "copper." 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" and "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, please refer to the related links. For further inquiries, 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 able to accurately understand and select 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-absorbing Nylon 12," which have recently gained 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 the strongest class of heat resistance and chemical resistance, fluororubber (FKM) is the common knowledge in many workplaces. However, even fluororubber has environments that can be a 'critical point' where it can deteriorate in a short period. 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 measure against oil leaks in hydraulic equipment and transformers, we proudly present the "Three Sheet Packing (Viscous Body Impregnated Sheet Gasket)" that boasts immense trust. This special gasket manufactured by ThreeBond is a groundbreaking material that combines the "ease of handling of solid sheets" with the "sealability of liquid gaskets." In this article, Daiko Co., Ltd. will explain the mechanism of the Three Sheet, the differentiation of the four types according to surface pressure (H type, S type, T type, F type), and detailed selection criteria. *For more 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.*

"The rubber melts due to heat." "The cross-section gets charred and hardens." "The material is too large to fit in the machine." In the processing of industrial gaskets and seals, the game-changing solution to these challenges is "water jet processing." However, while the technology itself is known, the extent to which it can handle materials of "what scale" and "how thick" varies greatly from one processing company to another. In this article, we will explain the "core" of the water jet technology and the "overwhelming equipment capabilities" of Daiko Co., Ltd. that maximize its potential. *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.*

"I want to visually confirm whether liquid is flowing through the pipes." "Since there is a gap between the devices, I want to connect them with a single long tube." When selecting a fluoropolymer tube, the solution to these challenges is the "TOMBO No.9003-PFA Naflon PFA Tube." This high-performance tube possesses incredible chemical resistance and heat resistance equivalent to PTFE, while also featuring "translucency" and "continuous molding capability (long length)" that PTFE does not have. We will explain its capabilities and applications. *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.*

From semiconductor manufacturing equipment to chemical plants and electrical insulation applications. As a reliable piping material in harsh environments, "TOMBO No.9003 Naflon PTFE Tube" has been chosen for many years. In the new semiconductor processes, ultra-high-performance grades like "PFA-UG" have also emerged, but for general industrial applications, the "PTFE Tube" still offers the best balance of cost and performance. We will thoroughly explain its specifications and reasons for being chosen. *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.*

"I want to reduce the particles (micro-particles) in the chemical solution to the absolute minimum." "I want to shorten the piping cleaning (flushing) time and speed up the startup." "Since we use harsh chemicals, we need high durability." In the fields of semiconductor and liquid crystal manufacturing, where nano-level precision processing is required, the specifications demanded for piping tubes are becoming increasingly stringent year by year. The "TOMBO No.9003-PFA-HG Naflon PFA-HG tube" from Nichias meets these advanced requirements that cannot be achieved with standard PFA tubes. Why is it called "HG (High Grade)?" Let's unravel its overwhelming specifications. *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.*

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.

In the management of factory equipment and product traceability, there is currently a shift away from "seals" and "ink printing." This change is driven by the wave of digitalization (DX) and the need to adapt to harsh on-site environments. Taking into account the trends in the industrial sector and the challenges on the ground, we propose a new management method utilizing the advanced machine "Keyence MD-U1000C," introduced by Daiko Co., Ltd. *For more detailed information, please refer to the related links. For further details, you can download the PDF or feel free to contact us.*

"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.

In the automotive industry, the reliability of seals for various fluids such as engine oil, coolant, and brake fluid is essential. In particular, seals used in high-temperature and high-pressure environments require durability. Improper material selection can lead to leaks and degradation, potentially resulting in serious accidents. This document provides a list of the compatibility of rubber materials used for automotive seals with various fluids. 【Application Scenarios】 - Engine oil seals - Brake caliper seals - Fuel system seals - Coolant system seals 【Benefits of Implementation】 - Increased longevity of seals through appropriate material selection - Reduced risk of leaks - Optimization of parts replacement cycles - Cost reduction

In the pharmaceutical industry, preventing contamination (foreign matter intrusion) is extremely important to ensure product quality. In particular, gaskets used in the manufacturing process can increase the risk of contamination through contact with fluids. Selecting the appropriate gasket is essential for maintaining product safety and ensuring compliance with regulations. This document clarifies the compatibility of various gaskets for different fluids used in pharmaceutical applications and supports the selection process to reduce contamination risks. 【Usage Scenarios】 - Pharmaceutical manufacturing processes - Cleanroom environments - Equipment using various pharmaceutical liquids, cleaning agents, and solvents 【Benefits of Implementation】 - Reduction of contamination risks - Improvement of product quality - Compliance with regulations

In the petrochemical industry, preventing fluid leaks is essential for the safety and efficient operation of plants. This is particularly important in plants handling high-temperature, high-pressure, and corrosive fluids, where proper gasket selection becomes crucial. Inappropriate gasket selection can increase the risk of accidents and operational shutdowns due to leaks. Our "Gasket Fluid Compatibility Chart" allows for an intuitive assessment of gasket compatibility with various fluids, including water-based fluids, oil-based fluids, solvents, and corrosive fluids, using a simple "◎・A・X" rating system. This enables customers to quickly select the optimal gasket and reduce leak risks. 【Usage Scenarios】 - Petrochemical plants - Chemical plants - Piping systems - Various tanks 【Benefits of Implementation】 - Reduced risk of leak accidents - Improved plant safety - Lower maintenance costs - Enhanced operational efficiency

In the food industry, hygiene management in the manufacturing process is extremely important. In particular, the selection of gaskets that may come into contact with food is essential for preventing foreign matter contamination and pollution. By choosing the appropriate gaskets, we can maintain product quality and ensure consumer safety. Our gasket fluid compatibility chart is designed to easily determine the compatibility of gaskets with various fluids used in food manufacturing. 【Usage Scenarios】 - Sealing of piping and equipment in food factories - Environments using cleaning agents and disinfectants - Compatibility with various fluids in the food manufacturing process 【Benefits of Implementation】 - Reduction of foreign matter contamination risks - Maintenance of product quality - Compliance with hygiene management standards

In the semiconductor industry, the contamination of minute impurities during the manufacturing process can have a serious impact on product quality and performance. Particularly in environments that require high purity, the leaching of trace components from gaskets and compatibility with fluids become critical issues. Proper gasket selection is essential for improving product yield and reducing manufacturing costs. Our "Gasket Fluid Compatibility Chart" evaluates the compatibility of gaskets with various fluids used in the semiconductor manufacturing process on a three-tier scale of ◎, A, and X, designed for intuitive judgment. This enables the rapid selection of optimal gaskets and helps maintain a high-purity environment. [Usage Scenarios] - Piping in clean rooms - Chemical supply lines - Ultrapure water production equipment [Benefits of Implementation] - Reduced risk of foreign matter contamination - Improved product quality - Stabilization of the manufacturing process

In the power industry, the safe operation of equipment is the most important issue. In particular, gaskets used in high-temperature and high-pressure environments play a crucial role in preventing fluid leakage and averting accidents. Proper gasket selection is essential for ensuring stable operation and safety of equipment. This document, "Gasket Fluid Compatibility Table," covers a vast array of fluids that may be used in power equipment, including water-based fluids, oil-based fluids, solvents, and corrosive fluids, allowing for an intuitive assessment of gasket compatibility with each fluid using "◎・A・X." It streamlines the gasket selection process for busy design and maintenance personnel, supporting safe equipment operation. 【Usage Scenarios】 - Power plants - Substations - Transmission equipment - Various plants 【Benefits of Implementation】 - Reduced risk of fluid leakage - Stable operation of equipment - Lower maintenance costs - Improved safety

In the aerospace industry, reducing the weight of aircraft is essential for improving fuel efficiency and performance. When selecting gaskets, lightweight and high-performance materials are required. Choosing the appropriate gasket is crucial for ensuring the safety and reliability of the aircraft. Our gasket fluid compatibility chart is designed to easily determine the materials of gaskets suitable for various fluids, supporting both weight reduction and performance. 【Usage Scenarios】 - Aircraft engines, fuel systems, hydraulic systems - Space rockets, artificial satellites - Aircraft parts pursuing weight reduction 【Benefits of Implementation】 - Reduction of aircraft weight through appropriate gasket selection - Ensuring compatibility with diverse fluids - Streamlining design and maintenance operations - Improvement of safety and reliability

In the water treatment industry, high durability against corrosive fluids is required. Corrosion can accelerate the deterioration of equipment and potentially lead to environmental pollution and safety issues due to leaks. Selecting the appropriate gasket helps reduce these risks and contributes to the longevity of the equipment. Our gasket fluid compatibility chart is an intuitive resource that allows for easy assessment of gasket compatibility with a wide range of fluids, including water-based fluids, oil-based fluids, solvents, and corrosive fluids. 【Usage Scenarios】 - Water treatment plants - Wastewater treatment facilities - Facilities handling chemical substances 【Benefits of Implementation】 - Reduced corrosion risk - Improved equipment reliability - Lower maintenance costs

In the gas piping industry, high airtightness is required because gas leaks can lead to serious accidents. Especially in environments handling flammable or toxic gases, it is crucial to minimize the risks of explosions or poisoning due to gas leaks. Our gasket fluid compatibility chart is designed to easily determine the materials of gaskets suitable for various gases, supporting the construction of safe gas piping systems. 【Usage Scenarios】 - Gas supply facilities - Chemical plants - Research facilities - Semiconductor manufacturing 【Benefits of Implementation】 - Reduces gas leaks and enhances safety - Cost reduction through proper gasket selection - Optimization of maintenance cycles - Reduction of accident risks

In the energy industry, stable operation of plants and equipment is required, and the selection of gaskets is essential to prevent energy loss due to leaks and ensure efficient operation. Particularly in equipment that operates in high-temperature and high-pressure environments or uses various fluids, selecting the appropriate gasket material is crucial. Our gasket fluid compatibility chart allows for easy determination of gasket suitability for a vast array of fluids, including water-based fluids, oil-based fluids, solvents, and corrosive fluids. This supports the selection of appropriate gaskets and contributes to the stable operation of equipment and improved energy efficiency. 【Usage Scenarios】 - Plant piping - Heat exchangers - Various tanks - Chemical plants - Oil refining 【Benefits of Implementation】 - Reduced leak risk - Stable operation of equipment - Mitigation of energy loss - Reduction of maintenance costs