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In November 2015, the "RCF Regulation (Revised Labor Safety and Health Law)" was enacted, overturning the conventional wisdom regarding high-temperature insulation materials. RCF (Refractory Ceramic Fiber), which was once the mainstream high-temperature insulation material, became subject to legal management due to concerns about its carcinogenicity. This article answers the fundamental question of "What is the RCF Regulation?" and thoroughly explains why RCF is regulated and why AES (Bio-soluble Fiber) is considered the optimal alternative. *For detailed content of the column, please refer to the related links. For more information, feel free to contact us.*

• others

We would like to introduce a case where we manufactured three "D1000 spiral gaskets (basic type)" (thickness 4.5mm, φ65×φ51) as high-temperature and high-pressure gaskets based on the customer's specifications. A metal hoop with a V-shaped cross-section and a sealing material filler (such as expanded graphite) were precisely wound into a spiral shape using a dedicated winding machine, and the start and end points were securely fixed with spot welding. Our company specializes in the production of spiral gaskets, which are essential for high-temperature and high-pressure steam lines and process lines. We can accommodate a wide range of requests, from small lot orders to consultations on special materials and dimensions. Please feel free to contact us. [Case Overview (Partial)] ■ Material: D1000 ■ Product: 3 spiral gaskets ■ Dimensions: Thickness 4.5mm, φ65 × φ51 *For more details, please download the PDF or feel free to contact us.

• Other machine elements

We would like to introduce a case where we manufactured six large frame-shaped gaskets measuring 680mm square and 60mm wide from a 3mm thick non-asbestos joint sheet "D6000" based on the customer's drawings. The processing involved drilling seven holes with a diameter of 8mm and twenty-four holes with a diameter of 19mm. We used a water jet cutting machine to cut directly from CAD data with high precision. Our company specializes in the production of complex-shaped gaskets based on drawings using water jet cutting machines. We can accommodate a wide range of requests, from a single prototype to complex shapes and short delivery times. Please feel free to contact us. 【Case Overview】 ■ Material: 3mm thick non-asbestos joint sheet "D6000" ■ Product: Six large frame-shaped gaskets ■ Shape: 680mm square, 60mm wide ■ Processing details: Drilling seven holes with a diameter of 8mm and twenty-four holes with a diameter of 19mm ■ Processing method: High-precision cutting directly from CAD data using a water jet cutting machine *For more details, please download the PDF or feel free to contact us.

• Other machine elements

We would like to introduce a case where we manufactured a D1000 spiral gasket (thickness 4.5mm) for an oval opening (300mm×400mm, seal width 25mm) based on the customer's drawing. It prevents leaks of high-temperature and high-pressure steam or hot water. In this case, we produced a V-shaped cross-section metal hoop and filler, which is the sealing material, with high precision using a dedicated winding machine. The spiral gasket is a high-performance semi-metallic gasket that is rationally designed for high temperature and high pressure applications. We can also manufacture spiral gaskets with special shapes based on the customer's drawings and specifications. Please feel free to contact us. 【Case Overview (Partial)】 ■ Material: D1000 ■ Product: Spiral gasket ■ Shape: Oval (300mm×400mm, seal width 25mm) *For more details, please download the PDF or feel free to contact us.

• Other machine elements

We would like to introduce a case where we produced 10 pieces of a strip-shaped gasket measuring 15mm × 350mm from a 5mm thick NBR rubber sheet based on the customer's drawing. After precisely cutting it with our water jet cutting machine, we applied tape processing on one side before delivery. The greatest feature of NBR (nitrile rubber) is its overwhelming stability in oil environments. It has excellent oil resistance, abrasion resistance, and aging resistance, along with mechanical reliability. Due to these properties, it is widely used in various industrial applications involving oil, such as oil seals, gaskets, and oil-resistant hoses. [Case Overview] - Material: 5mm thick NBR rubber sheet - Product: 10 gaskets - Shape: Strip shape of 15mm × 350mm - Processing details: - Precisely cut with a water jet cutting machine, then tape processing was applied on one side. *For more details, please download the PDF or feel free to contact us.

• Other machine elements

We would like to introduce a case where a frame-shaped gasket was produced from graphite-treated glass cloth "D5400" with a thickness of 3.2mm, based on the customer's drawing. The size is 300mm × 350mm with a width of 45mm, and the processing involved drilling 14 bolt holes with a diameter of 15mm. Using our water jet cutting machine, we achieved high precision cutting directly from CAD data. The glass cloth has been rubber-coated and further treated with graphite on the surface to prevent burning onto the flange, resulting in a non-asbestos heat-resistant gasket. It has excellent thermal insulation properties and can withstand high temperatures up to 400°C. 【Case Summary】 ■ Material: D5400 Glass Cloth Gasket ■ Product: Frame-shaped Gasket ■ Dimensions: 300mm × 350mm, 45mm width ■ Processing Details: Drilling 14 bolt holes with a diameter of 15mm ■ Processing Method: - High precision cutting using a water jet cutting machine directly from CAD data *For more details, please download the PDF or feel free to contact us.

• Other machine elements

"The manhole packing of the incinerator deteriorates quickly at high temperatures." "I can't find a large-diameter gasket that fits the corner flange of the exhaust duct." "For the hot air line of the dryer, I don't need high airtightness, but I want a sealing material that is heat-resistant." Are you struggling to address the sealing and insulation challenges unique to high-temperature, low-pressure exhaust systems with general-purpose gaskets like joint sheets? Maintenance of high-temperature hot air and exhaust lines requires specialized properties such as "heat resistance," "flexibility," and "workability." To solve these issues, Daiko Co., Ltd., a specialized manufacturer of industrial gaskets, has prepared a free PDF catalog focused on the maintenance of high-temperature equipment such as exhaust systems, boilers, and dryers. *For more details on the column, please refer to the related links. Feel free to contact us for more information.

• Other machine elements

The stable operation of boiler equipment is the foundation of various industries. On the other hand, due to the harsh environment of high temperature and high pressure, consumable parts such as water level gauges, valves, and piping flanges require regular inspections and prompt replacements. However, when selecting parts, challenges such as "not being able to arrange genuine parts in time," "not knowing compatible parts from other manufacturers," and "not knowing where to order custom gaskets" are always present. To everyone involved in the maintenance and upkeep of boilers, we have prepared the Daiko Co., Ltd. 【Boiler Parts Catalog】 (free PDF), which condenses the necessary parts selection, technical data, and a "manufacturer comparison chart" into one book. *For detailed content of the column, please refer to the related links. For more information, feel free to contact us.

• Other machine elements

"I want a large-diameter gasket that is not a standard product." "I want a one-off item precisely processed from the drawing." "I want to quickly confirm the tightening torque for the JIS flange needed for construction." "It takes time to find equivalent products from Nichias or Vulcan." These requests for "custom processing" and the concerns about "selecting standard products." At Daiko, a specialized manufacturer of gaskets and packing, both can be resolved with this one comprehensive catalog. Our company is a processing manufacturer of industrial products with over 50 years of experience. We go beyond mere product sales and respond to various challenges faced by our customers with our technical expertise. *For detailed content of the column, please refer to the related links. For more information, please feel free to contact us.

• Other machine elements

We would like to introduce a case where a gasket for a pump was manufactured from a non-asbestos joint sheet "Vulcan No. 6500" with a thickness of 2mm, based on the customer's drawing. The shape was complex, based on a ring with a diameter of φ180mm × φ115.4mm, featuring notches and multiple bolt holes (16 holes/32 holes). Using our water jet cutting machine, we cut directly from CAD data with high precision. 【Case Overview】 ■ Material: Vulcan No. 6500 ■ Product: Gasket for pump ■ Shape ・ Based on a ring with a diameter of φ180mm × φ115.4mm ・ Complex shape with notches and multiple bolt holes (16 holes/32 holes) ■ Processing Method ・ Cut directly from CAD data with high precision using a water jet cutting machine *For more details, please download the PDF or feel free to contact us.

• Other machine elements

In the design and maintenance of piping for plants and equipment, gasket selection is extremely important yet one of the most challenging tasks. In particular, confirming compatibility with "fluids" (chemical resistance) is the first hurdle in the selection process. The types of fluids vary widely, including water, oil, gas, and corrosive fluids (acids and alkalis). If the selection is incorrect, there is a risk of serious accidents or production stoppages due to leaks. To solve the "problems" faced by busy design and maintenance personnel, Daiko Co., Ltd., a gasket expert, has prepared a truly useful "Fluid Compatibility Table" as a free white paper (PDF document) for the field. *For more details on the column, you can view it through the related links. For further inquiries, please feel free to contact us.

• Other machine elements

We would like to introduce a case where we created a decorative plate from plywood based on the customer's design data. First, we cut it to the specified dimensions using a laser cutting machine, and then we used a laser marker to draw a delicate and beautiful phoenix design. From cutting to the intricate artwork, we handled everything consistently with our laser processing machine. If you have requests such as "I want to create an original sign" or "I want to add a logo to a commemorative item," please feel free to consult with us. 【Case Overview】 ■ Material: Plywood ■ Product: Decorative Plate ■ Work Details ・Cut to specified dimensions with a laser cutting machine ・Draw a delicate and beautiful phoenix design using a laser marker *For more details, please download the PDF or feel free to contact us.

• Processing Contract

We would like to introduce a case study of water jet processing of our heat-resistant glass cloth "D5400." Based on the DXF data provided by the customer, we manufactured a gasket measuring 62.5mm square from the 3.2mm thick "D5400." Using a water jet cutting machine, we precisely cut the outer shape and inner holes according to the data. Materials like glass cloth, which are soft and prone to fraying, can be finished beautifully when cut with water. [Case Overview] ■ Material: 3.2mm thick heat-resistant glass cloth "D5400" ■ Product: 62.5mm square gasket ■ Work Details - High-precision cutting of the outer shape and inner holes according to the data provided by the customer. *For more details, please download the PDF or feel free to contact us.

• Processing Contract

We would like to introduce a case where we manufactured nameplates for equipment from stainless steel plates at the request of a customer. First, we precisely cut the stainless steel plates to the dimensions and shapes specified by the customer using a laser cutting machine. After that, we clearly engraved the product name, model number, specifications, and other text information using a laser marker. By handling everything from cutting to marking in a consistent manner, we were able to deliver high-quality products quickly. If you have requests such as "I want to create an original nameplate" or "I want to add a management number to a part," please feel free to consult with us. [Case Overview] ■ Material: Stainless steel plate ■ Product: Nameplate for equipment ■ Work Details - Precisely cut to the dimensions and shapes specified by the customer using a laser cutting machine - Clearly engraved text information such as product name, model number, and specifications using a laser marker *For more details, please download the PDF or feel free to contact us.

• Processing Contract

We would like to introduce a case where we created original bookmarks from stainless steel and plastic sheets at the request of a customer. First, we precisely cut the shape of the bookmark using a laser cutting machine, and then we clearly engraved the specified text and design using a laser marker. By handling everything from cutting to marking in a consistent manner, we can produce high-quality original goods. If you have requests such as "I want to create an original bookmark" or "I want to engrave a name on a commemorative item," please feel free to consult with us. 【Case Overview】 ■ Material: Stainless steel and plastic sheets ■ Product: Original bookmarks ■ Work Details ・Precise cutting of the bookmark shape using a laser cutting machine ・Clear engraving of the specified text and design using a laser marker *For more details, please download the PDF or feel free to contact us.

• Processing Contract

We would like to introduce a case study of water jet processing of "EPDM rubber" that our company conducted. In this case, based on the drawings provided by the customer, we manufactured a large diameter flange gasket with an outer diameter of φ600mm and an inner diameter of φ500mm from a 4mm thick EPDM rubber sheet. The processing involved drilling 14 bolt holes of φ12mm on a P.C.D. of 550mm, using our water jet cutting machine to achieve high precision cutting according to the data. 【Case Overview】 ■ Material: 4mm thick EPDM rubber sheet ■ Product: Large diameter flange gasket with an outer diameter of φ600mm and an inner diameter of φ500mm ■ Processing details: Drilling 14 bolt holes of φ12mm on a P.C.D. of 550mm *For more details, please download the PDF or feel free to contact us.

• Processing Contract

We would like to introduce a case where we manufactured a cylindrical cover with an outer diameter of φ216mm and a height of 48mm from a 3mm thick EPDM rubber sheet based on the customer's drawing. First, we precisely cut the sheet to the specified dimensions using a water jet cutting machine, and then finished it into a cylindrical shape through adhesive processing. By combining cutting and adhesion, we can flexibly accommodate product shapes that are difficult to achieve through integral molding. We create CAD data based on the drawings provided by the customer and process it directly, eliminating the need for molds. Please feel free to contact us for more information. 【Case Overview】 ■ Material: 3mm thick EPDM rubber sheet ■ Product: Cylindrical cover with an outer diameter of φ216mm and a height of 48mm ■ Work Details ・ Precisely cut the sheet to the specified dimensions using a water jet cutting machine ・ Finished into a cylindrical shape through adhesive processing *For more details, please download the PDF or feel free to contact us.

• Processing Contract

We would like to introduce a processing case of "V6502 Black Super" conducted by Daiko Co., Ltd. Based on the customer's drawings, we manufactured a flange gasket for 10K-50A from a 3mm thick non-asbestos joint sheet "Vulcan No. V6502 (Black Super)." It was processed into a shape with handles using a water jet cutting machine. Having handles makes it easier to handle and manage the installation of the gasket. Additionally, since the handles protrude outside the flange, it helps prevent human error by forgetting to insert the gasket. [Case Overview] - Material: Vulcan No. V6502 (Black Super) - Product: Flange gasket for 10K-50A (with handles) - Work Details: Processed into a shape with handles using a water jet cutting machine *For more details, please download the PDF or feel free to contact us.

• Processing Contract

"Leaks from the piping won't stop," "I don't know which flange or gasket to choose," "I'm struggling with the balance between cost and safety." Piping systems support factories, plants, and social infrastructure. The key to their stable operation lies in the "flanges" that connect pipes and equipment. While they may seem like simple components at first glance, choosing the wrong one can lead to production stoppages, environmental pollution, and even serious accidents. This article comprehensively explains everything from the basic knowledge of flanges to practical selection points for all individuals involved in the design and maintenance of piping systems, including engineers and purchasing personnel. You will learn about the differences in types and standards, the seat shape that affects sealing performance, and most importantly, how to select the right gasket. By reading this article, you will understand it all. *For detailed content of the column, please refer to the related links. For more information, feel free to contact us.*

• Other machine elements

In piping flanges of plants and factories, completely preventing fluid leakage is an absolute requirement for safe operation and stable production. To fully utilize the performance of the "gasket," which can be considered the heart of the system, it is essential not only to select the appropriate material for the product but also to choose the right type of flange and implement proper tightening management based on scientific evidence. In this article, we will thoroughly explain specialized knowledge from gasket selection to processing and installation based on technical materials from Nichias Corporation, in a way that can be practically applied on-site. *For detailed content of the column, please refer to the related links. For more information, feel free to contact us.

• Other machine elements

In chemical plants and lines handling corrosive fluids, the selection of seals is the most critical issue that affects the safety and lifespan of equipment. Among them, the "fluororesin (PTFE) gasket," which boasts excellent chemical resistance, is an indispensable component. However, to fully leverage its high performance, a deep understanding of the product's structure and extremely precise selection tailored to the usage conditions are required. This article comprehensively explains the complex selection methods, processing, and usage precautions, focusing particularly on the "TOMBO No.9010 Naflon PTFE cushion gasket," which has a wide variety of combinations, based on technical materials from Nichias Corporation. *For detailed content of the column, please refer to the related links. For more information, feel free to contact us.*

• Other machine elements

In plants where reliable sealing performance is required under harsh conditions such as high temperature and high pressure, "vortex gaskets" (spiral gaskets) are one of the most trusted sealing materials. However, to maximize their high performance, it is essential to have a deep understanding of the product's structure and to make extremely precise selections tailored to the usage conditions. This article comprehensively explains the correct selection methods from the complex product system of vortex gaskets, as well as precautions to prevent troubles, based on technical materials from Nichias Corporation. *For detailed content of the column, please refer to the related links. For more information, feel free to contact us.*

• Other machine elements

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.

• Sealing

"Joint sheets (gaskets)" are widely used in piping systems of factories and plants. Due to their versatility and cost-effectiveness, they are commonly adopted in many sites. However, to fully utilize their performance and prevent leakage issues, it is essential to correctly understand the product's characteristics and to select and handle them appropriately according to the usage conditions. In this article, based on technical materials from Nichias Corporation, we will thoroughly explain the correct way to choose joint sheets, focusing on the representative TOMBO No.1995 (Clinsil Brown), as well as important precautions that must be observed on-site. *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.*

• Sealing

Pure fluoropolymer (PTFE) gaskets are widely used in many chemical lines due to their excellent chemical resistance. However, conventional PTFE sheets have a significant challenge: they are prone to "creep (stress relaxation)" and lack long-term sealing stability. To overcome this weakness, Nichias Corporation has developed the "TOMBO No.9096-SGM" (SGM gasket) using special manufacturing technology. This article thoroughly explains the performance of this "high-strength stretched PTFE gasket," which overturns the conventional wisdom of PTFE, as well as important considerations to maximize its capabilities. We aim to assist field engineers and maintenance personnel in solving sealing challenges under more severe conditions. *For detailed content of the column, please refer to the related links. For more information, feel free to download the PDF or contact us.

• Sealing

"In the utility line of the factory, which gasket is standard and highly reliable?" "I want to select sealing materials that offer excellent cost performance against water and oil." The product that truly meets these basic needs on site and can be called a "standard" is the general-purpose joint sheet gasket "Vulcan No. 6500," provided by Vulcan Corporation for many years. In this article, based solely on the official catalog information provided by Vulcan, we will thoroughly explain why No. 6500 continues to be chosen as a standard product in many workplaces, from its basic performance to the important precautions that must be strictly followed for safe use, from a professional perspective. *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.*

• Sealing

"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.

• Sealing

"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.*

• Sealing

Are you facing any of these concerns: 'I don't know which joint sheet to choose,' 'I'm using a standard product, but it's deteriorating quickly and it's a problem,' or 'I want to achieve higher safety and longer lifespan'? The joint sheet gaskets provided by Nichias Corporation range from general-purpose to high-performance options. In this article, we will focus on three representative grades: the standard product 'No.1995,' the heat-resistant reinforced type 'No.1993,' and the high-grade product 'No.1120,' thoroughly comparing and explaining the differences in their performance and the correct selection methods. *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.

• Sealing

Fluid leaks from piping in plants and factories, as well as from the flange parts of various equipment, can sometimes lead to significant troubles. An essential component to reliably prevent such leaks is the "sheet gasket." However, gaskets are not simply something that can be inserted. To fully utilize their performance and maintain stable sealing capabilities over the long term, there are important precautions that must be observed from storage to selection, installation, and maintenance. In this article, we will provide a detailed explanation of a series of precautions regarding the handling of sheet gaskets that will be indispensable on-site, following a step-by-step approach. *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.*

• Sealing

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.*

• Sealing

In ensuring the stable operation and safety of plants, the selection and handling of gaskets, which are sealing materials for piping flange sections, play an extremely important role. Among the diverse range of products available, this time we will focus on the fluoropolymer (PTFE) gasket "TOMBO No.9007-LC," which combines excellent chemical resistance with groundbreaking low creep characteristics, and thoroughly explain its details. This article aims to assist field engineers and maintenance personnel in solving the challenges they will face in their work starting tomorrow, delving deeply into practical aspects from the product features to the "precautions" that must be observed on-site. *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.

• Sealing

"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.*

• Sealing

"Despite using stainless steel piping, unexpected flange corrosion and cracking have occurred." "I want to ensure longer-term safety in water and steam lines." Behind these on-site challenges often lies the unique corrosion mechanisms associated with stainless steel. A seemingly minor mistake in gasket selection can frequently lead to significant equipment damage. This article will elucidate the hidden risk of "stress corrosion cracking" in the sealing of stainless steel piping and thoroughly explain the significance and proper use of the Clean Joint Sheet "No.6500AC," developed by Valkar Co., Ltd., as a specialized countermeasure. *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.*

• Sealing

A very familiar sealing material that supports the stable operation of plants is the "joint sheet gasket." Due to its versatility and high cost performance, it is widely used in various settings, primarily in utility lines such as water, oil, and air. However, behind its ease of use lies a specific weakness of the material and strict rules that can lead to serious leakage accidents if used incorrectly. In this article, we will thoroughly explain the "common precautions" that everyone on site should know in order to use joint sheets safely and stably over the long term, from a professional perspective. In particular, we will focus on the "100°C barrier," which is a common cause of many troubles, and delve deeply into its countermeasures. *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.*

• Sealing

"I want to respond with higher reliability in piping lines that handle utility lines such as steam and oil at temperatures above 100°C, as well as chemical substances. I need gaskets that have excellent long-term stability and minimal creep (deformation) even under high temperatures." In extremely harsh environments such as chemical plants, semiconductor manufacturing, and pharmaceutical processes, there are situations where the performance of standard fluoropolymer (PTFE) gaskets falls short. To meet these top-level demands, Vulcan Corporation has developed the flagship model of high-performance fluoropolymer gaskets, "No.GF300," by consolidating years of sealing technology. This article will thoroughly explain why the GF300 is referred to as the "pinnacle," from its unique material technology that supports its performance to important precautions for safe use, 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.*

• Sealing

"The contamination of fluids with black foreign substances must be absolutely avoided," and "I want to prevent galvanic corrosion between dissimilar metal flanges." In the stable operation of a plant, there are many situations where such added value is required in addition to basic sealing performance. The high-performance sheet gasket "Vulcan No. SF300" (White Hyper) from Vulcan Corporation overcomes the challenges of conventional joint sheet heat resistance and combines two important properties: "cleanliness" and "insulation." This article thoroughly analyzes why SF300 is chosen in areas where cleanliness and insulation are required, comparing its performance with the standard type GF300. Furthermore, it provides a deep explanation from a professional perspective on the correct knowledge needed to safely harness its high performance. *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.*

• Sealing

We would like to introduce a case where we created original golf markers from stainless steel plates at the request of a customer. The circular shape of the markers was precisely cut using a laser cutting machine, and then names and company logos were clearly engraved with a laser marker. We apply the technology cultivated in the production of industrial product nameplates to create high-quality original goods. 【Processing Features】 ■ Non-peeling and non-fading printing ■ High-definition marking ■ From industrial use to personal use *For more details, please download the PDF or feel free to contact us.

• Processing Contract
• stainless

We would like to introduce a case where we manufactured a heat-resistant gasket for duct flanges from the biocompatible fiber cloth "D5800," which complies with RCF regulations, at the request of our customer. Using our laser processing machine, we precisely cut the material to the dimensions and shapes specified by the customer. Since we apply a rubber coating, we can achieve a clean finish without fraying, even with materials that are prone to unraveling like cloth. 【Processing Features】 ■ Clean cut edges without fraying ■ No molds required, accommodating various types ■ High-precision processing *For more details, please download the PDF or feel free to contact us.

• Processing Contract
• fiber

We would like to introduce a case where we manufactured insulation parts for equipment using the ultra-low temperature refrigerant "Cryo Jewel Z" based on the customer's drawings. Using our water jet cutting machine, we precisely cut to the dimensions and shapes specified by the customer. Since water jet cutting is a non-contact process, it can beautifully process very soft and delicate materials like this product without crushing or deforming them. 【Processing Features】 ■ No molds required, low cost ■ Direct processing from drawings ■ Easy repeat ordering with data storage *For more details, please download the PDF or feel free to contact us.

• Processing Contract

"I want to select a reliable gasket for a line handling acids and alkalis." "There are concerns about long-term corrosion resistance with gaskets for utility use." To address the sealing challenges in such chemically corrosive environments, Nichias Corporation has developed a fluororesin gasket specialized for chemical resistance, the "TOMBO No.1133" (Clean Silk Clean). In this article, we will thoroughly explain why No.1133 exhibits superior chemical resistance that sets it apart from conventional gaskets, including its structural secrets, specific data supporting its performance, and the correct knowledge for safe usage, 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.*

• Sealing

"In lines handling high-concentration alkaline fluids such as caustic soda and potassium hydroxide, we want to maintain long-term stable sealing performance. However, with general PTFE gaskets, there are concerns about reliability under special conditions." This presents sealing challenges in "strong alkaline" environments within plants, which are particularly corrosive and difficult in terms of material selection. To meet these extremely specialized requirements, Nichias Corporation has developed the "TOMBO No.9007-SC" (Naflon PTFE special carbon-filled punched gasket). In this article, we will thoroughly explain why No.9007-SC is specialized for "strong alkaline fluids," from its structural secrets to specific data supporting its performance, as well as the essential usage rules that must be followed, 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.*

• Sealing

In this document, we provide a fluid compatibility chart to solve the "problems" faced by busy design and maintenance personnel. We comprehensively cover a vast array of fluids, including water-based fluids, oil-based fluids, solvents, and corrosive fluids, categorized for easy reference, allowing for intuitive compatibility assessment using symbols "◎, A, X." Additionally, selection criteria such as operating temperature, operating pressure, and piping shape are also necessary for making selections. Please use this as a reference to select gaskets suitable for your operating fluids. [Contents Included] ■ Water-based fluids and oil-based fluids (oils, alcohols) ■ Oil-based fluids (hydrocarbon gases, animal and vegetable oils) ■ Solvents and corrosive fluids (solvents, cleaning agents) ■ Solvents and corrosive fluids (acids, halogens) ■ Solvents and corrosive fluids (salts, alkalis, monomers, and other general chemicals) ■ Gas-based fluids I, Gas-based fluids II, Low-temperature fluids *For more details, please download the PDF or feel free to contact us.

• others

Before taking measures against electrolysis, let's confirm the identity of the enemy once again. Electrolysis is a phenomenon where metals corrode due to electrical actions, and there are mainly two types. First, galvanic corrosion, which is a representative of electrolysis. When dissimilar metals (e.g., carbon steel bolts on stainless steel flanges) come into contact through an electrolyte such as water or condensation, a tiny battery (galvanic cell) is formed. Next is stray current corrosion. This occurs when current (stray current) leaking from railway tracks (using direct current) or other electrical equipment flows into nearby underground metal pipes through the ground and causes severe corrosion at the exit point when it flows back out into the earth. *For detailed content of the column, please refer to the PDF. For more information, feel free to contact us.

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Leakage from gaskets in plant and factory piping flanges is a serious issue that directly leads to production stoppages, energy losses, and significant safety accidents. Remarkably, research shows that about two-thirds of all gasket-related troubles are caused by "poor installation." Among these installation issues, the overwhelming majority is due to "inadequate management of tightening force." In this article, we will thoroughly explain why "torque management" is essential for gasket sealing, covering the fundamental theory, the correct tightening procedures that can be practiced on-site starting tomorrow (in accordance with JIS B 2251), and specific examples of the three most common tightening failures (under-tightening, over-tightening, and uneven tightening) along with their countermeasures. *For detailed content of the column, please refer to the PDF. For more information, feel free to contact us.

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