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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 product is a type of semi-metallic gasket commonly referred to as a spiral wound gasket. Due to its unique structure, it can be used under high temperature and high pressure conditions similar to metal gaskets, while demonstrating excellent sealing performance. It is widely adopted in piping and equipment across a broad range of fields. Please feel free to contact us when you need assistance. 【Features】 ■ A spiral structure made by alternately layering a V-shaped cross-section metal strip (hoop) and a non-metallic cushioning material (filler), which are then securely welded at the beginning and end of the spiral. ■ Four types of shapes are available to match the gasket seating of the target flange: basic shape, with inner and outer rings, with outer ring, and with inner ring. *For more details, please download the PDF or feel free to contact us.

We would like to introduce our steam piping joint sheet 'TOMBO No.1155'. Thanks to our unique formulation technology, we have successfully minimized the creep at high temperatures, which is a drawback of PTFE, allowing for excellent sealing performance even under high temperatures. Since PTFE is the main material, degradation at high temperatures is minimal, and it can be re-tightened as needed, ensuring safe and reliable long-term use. 【Features】 ■ High compressive strength ■ Difficult to break when installed on flanges ■ Can be installed safely *For more details, please download the PDF or feel free to contact us.

"TOMBO No.1133" is a white high-temperature resistant sheet gasket made primarily from PTFE and alumina. Since it uses alumina, which has excellent chemical resistance, there is no need to differentiate gaskets based on the type of fluid, such as acids or alkalis. Additionally, it can withstand high temperatures and high pressures, making it suitable for use in areas where electrical insulation is required. 【Standard Sizes】 ■Thickness: t1.5, t2.0, t3.0 ■Size (mm): 1270×1270 (standard) *For more details, please download the PDF or feel free to contact us.

"TOMBO No.1120" is a non-asbestos joint sheet that can cover the practical application areas of asbestos joint sheets. It is a black sheet gasket that contains no asbestos, reinforced with aramid fibers primarily made of expanded graphite. It uses oil-resistant rubber as a binder. Please feel free to contact us when you need it. 【Features】 ■ Usable for saturated steam at 2MPa ■ Excellent heat resistance, steam resistance, and corrosion resistance ■ Resistant to scratches and highly flexible *For more details, please download the PDF or feel free to contact us.

We would like to introduce our general piping joint sheet 'TOMBO No.1995'. This is a brown non-asbestos joint sheet that contains no asbestos, made by adding inorganic fillers to inorganic fibers and aramid fibers, with oil-resistant synthetic rubber as a binder. The sealing thickness is 1.5mm, and the shape used is a ring type (FR). In cases where maintenance is difficult, vortexes and other methods may be used. 【Usage Range】 ■ Water-based fluid pressure resistance: 2MPa / Maximum operating temperature 183℃ ■ Oil-based fluid pressure resistance: 2MPa / Maximum operating temperature 183℃ ■ Gas-based fluid pressure resistance: 1MPa / Maximum operating temperature 183℃ *For more details, please download the PDF or feel free to contact us.

"Since it's a utility line, should we prioritize cost and go with the NA Vortex?" "No, since it's an important line, we should opt for the reliable GR Vortex." "Wait, this fluid is corrosive, so it has to be the Naflon Vortex, right?" The "Vortex Gasket," renowned as the "ultimate weapon" for sealing in high-temperature and high-pressure lines, boasts immense trust. However, among these, many field personnel are struggling with the appropriate differentiation of the three main models: "NA," "GR," and "Naflon (PTFE)," which are particularly in demand. This article does not unilaterally recommend specific products. Based solely on the official catalog information from Nichias Corporation, it aims to put an end to the eternal question of "Which of the three major Vortex models should we choose?" by thoroughly comparing and analyzing their performance, cost, and application ranges, providing a practical selection guide for everyone to confidently choose the "correct item" for their equipment. *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 high-temperature and high-pressure steam lines, the heat and pressure resistance of sheet gaskets has reached its limit." "In areas with significant temperature fluctuations (thermal cycles), gaskets quickly degrade and leaks occur." "We need a highly reliable sealing material that can handle everything from cryogenic liquefied gases to ultra-high temperature exhaust gases with a single structure." These are critical sealing challenges that arise in important lines, often referred to as the heart of the plant. In response to these challenges, Nichias Corporation presents the "Vortex Gasket" (spiral-shaped gasket), which combines the advantages of "metal" and "non-metal" to provide solutions. This article will delve into the three significant benefits that this semi-metal gasket brings to the field, how it can solve the difficult sealing challenges you face, and provide specific guidelines for selecting the appropriate product from a wide range of options, all explained from a professional perspective. *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.*

Under extreme conditions such as high temperature, high pressure, thermal cycles, and cryogenic environments, the "Vortex Gasket (spiral gasket)" is trusted as the last line of defense. Its high sealing performance is essential for the stable operation of plants. However, this high performance can only be safely realized by adhering to strict rules (precautions) from design to selection, installation, and maintenance. Are you aware of this? This article does not praise the performance of the Vortex Gasket. Instead, it focuses solely on the risks hidden behind its high performance and the "precautions for use" that everyone on site must absolutely know to avoid those risks. It serves as a practical safety manual. *For detailed content of the column, please refer to the related links. For more information, feel free to download the PDF or contact us.

"Which is more suitable for our steam line, GR or NA?" "Is an inner ring necessary for this flange, or not?" "How should I specify this complex shape for the heat exchanger?" The Vortex Gasket, renowned as the "last line of defense" in sealing high-temperature and high-pressure lines, boasts immense trust. However, in exchange for its high performance, the selection process is extremely complicated, causing many field personnel to struggle. Incorrect selection can lead not only to increased costs due to over-specification but, in the worst case, could result in serious leakage incidents. This article does not praise a specific product. Using Nichias Corporation's "Vortex Gasket" as a subject, it serves as a comprehensive guide to explain a practical thought process (selection flow) aimed at solving the challenge of "complex gasket selection" that you face in the field. *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 a line handling strong acids and strong alkalis, the deterioration and leakage of gaskets occur frequently." "With glass-lined flanges, it is impossible to apply sufficient tightening force, resulting in unstable seals." "Every time maintenance is performed, we struggle to peel off gaskets that have adhered to the flanges." …These are serious sealing issues that arise daily in demanding environments such as chemical plants and pharmaceutical and food factories. To fundamentally solve these challenges, a high-performance sealing material that embodies the philosophy of "the right material in the right place" in its ultimate form is Nichias Corporation's "TOMBO No.9010" (Naflon PTFE cushion gasket), commonly known as the "wrapped gasket." This article will delve into the three significant benefits that this high-performance composite gasket brings to the field, how it can resolve the challenges you face, and provide specific guidelines for selecting the optimal product from a wide range of options, explained thoroughly from a professional perspective. *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.

"I can't find the optimal gasket for the glass lining flange." "I want to achieve both high chemical resistance and flexibility that conforms to the distortion of the flange surface." "I heard that No.9010 is good, but the part numbers are too complicated, and I have no idea which one to choose." ... This is a serious issue faced by many site managers seeking high-performance sealing materials. The ultimate customized solution to this problem is Nichias Corporation's "TOMBO No.9010" (Naflon PTFE cushion gasket), commonly known as the "wrapped gasket." In this article, we will thoroughly explain the extremely complex part number system of this high-performance composite gasket, unraveling each one, and provide specific guidelines from a professional perspective to help you select the "suitable item" from countless combinations to address your challenges. *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.