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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.

• others

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.

• others

The document provides a list of compatibility of rubber materials with various oils, solvents, and chemicals used on-site. It includes a variety of materials such as Natural Rubber (NR), Butadiene Rubber (BR), Styrene Rubber (SBR), and Butyl Rubber (IIR). Additionally, selection criteria such as operating temperature, operating pressure, and piping shape are also necessary for selection. Please use this as a reference for selecting gaskets suitable for your operating fluids. [Contents] ■ Material List ■ Rubber Fluid Compatibility Table *For more details, please download the PDF or feel free to contact us.

• Rubber

From industrial machinery to plant piping and building equipment, "rubber gaskets and packing" prevent fluid leaks and fill gaps, serving as extremely important components that support the performance and safety of equipment, despite being inconspicuous. However, even when grouped under the term "rubber," the types vary widely from natural rubber (NR) to nitrile rubber (NBR) and fluorine rubber (FKM), each possessing completely different characteristics (oil resistance, weather resistance, heat resistance, chemical resistance, mechanical strength). If this selection is incorrect, it can lead to serious problems such as "rubber swelling and leaking due to oil," "cracking due to ozone," or "hardening due to heat resulting in loss of sealing capability." In this article, we will thoroughly compare and explain the characteristics of nine major types of rubber materials, providing a "selection guide" to help you choose the right product for your application. *For detailed content of the column, please refer to the PDF. For more information, feel free to contact us.*

• Rubber

In November 2015, a significant regulation that overturned the conventional wisdom of high-temperature insulation in Japan's industrial sector was enacted. This is the "RCF Regulation (Revised Labor Safety and Health Act)." RCF (Refractory Ceramic Fiber), which once dominated as a substitute for asbestos, has become a legally regulated substance due to concerns about its carcinogenicity. As a result, the selection of sealing and insulation materials in high-temperature areas exceeding 1000°C now faces new challenges. This article will thoroughly explain the fundamental question of "What is the RCF Regulation?" as well as why RCF is regulated and why AES has been chosen as its alternative, while unraveling the history of insulation materials. *For detailed content of the column, please refer to the PDF. For more information, feel free to contact us.*

• Other polymer materials

This is an example of producing a large-diameter flange gasket with an outer diameter of φ695mm and an inner diameter of φ595mm from a 3mm thick silicone rubber sheet based on the customer's drawing. The processing involved drilling 12 bolt holes of φ15mm on a P.C.D. of 655mm. Using our water jet cutting machine, we achieved high-precision cutting according to the data. Since no die was required, we were able to respond quickly to a request for a single prototype. Water jet cutting is suitable for processing elastic materials like rubber because it cuts with a high-pressure water stream. 【Processing Features】 ■ No die required, low cost, and short delivery time ■ Direct processing from drawings ■ High-quality cutting with no thermal impact ■ Easy repeat orders with data storage *For more details, please download the PDF or feel free to contact us.

• Rubber
• Sealing

"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.*

• Sealing

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.

• Sealing

Among the various rubber materials, natural rubber (NR) is considered the origin and reference point. Even in today's world where various high-performance synthetic rubbers are developed, the exceptional mechanical properties of natural rubber continue to hold irreplaceable value in many fields. In this article, based on the provided physical property data, we will delve into why natural rubber remains indispensable in the industrial sector, exploring the core secret of its "strength" and the "weaknesses" that one should understand to maximize that strength. We will deliver solutions from the specialized trading company Daiko, from suitable 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 directly.*

• Rubber

High loads, strong impacts, and intense wear. Under such harsh conditions, rigid plastics can crack, and common rubber can tear. To solve this engineering challenge, a special material that combines the advantages of the rigidity of hard materials and the elasticity of rubber has been developed: urethane rubber (U). In this article, we will redefine why urethane rubber can be a new solution in high-load environments by examining its remarkable physical properties through material data. Furthermore, we will explain the operational rules for maximizing the use of this high-performance material, as well as the processing and selection solutions provided by the specialized trading company Daiko. *For detailed content of the column, please refer to the related links. For more information, feel free to download the PDF or contact us.*

• Rubber

Modern advanced technologies must overcome extremely harsh environments, such as high temperatures exceeding 200°C and highly corrosive chemicals. In these extreme conditions, while other materials lose their performance, high-performance elastomers, specifically fluorine rubber (FKM), continue to exhibit stable performance over the long term. Its overwhelming heat resistance and chemical resistance place it among the highest class of rubber materials, establishing it as one of the reliable solutions in modern industry. This article will elucidate the ultimate performance of fluorine rubber through physical property data and propose selection and processing solutions to maximize its capabilities in collaboration with the specialized trading company Daiko. *For detailed content of the column, please refer to the related links. For more information, feel free to download the PDF or contact us.*

• Rubber

In product development and technological innovation, "temperature" often stands as an insurmountable barrier. However, there exists a special material that can break through that barrier and enable technologies in areas that were previously deemed impossible. That material is silicone rubber (Si). In this article, we will redefine the essential properties of silicone rubber, demonstrating how it is not merely a "heat-resistant and cold-resistant material," but rather a "solution" that can expand technical limits. Furthermore, we will explain the selection and processing of this special material to elevate it into functional components from the perspective of the specialized trading company Daiko. *For more detailed content of the column, please refer to the related links. For further information, feel free to download the PDF or contact us.*

• Rubber

The automobiles, buildings, and social infrastructure we see are constantly exposed to harsh environments such as sunlight, ozone, and rainwater. To ensure these facilities function over a long period, a "protective material" that shields the interior from environmental factors is essential. The key role in this is played by EPDM (ethylene propylene diene monomer rubber). In this article, we will redefine why EPDM is indispensable as the "invisible protective material" of modern society, based on its core performance characteristics derived from physical property data. Furthermore, we will propose selection and processing solutions to enable this excellent protective material to function as actual components, in collaboration with the specialized trading company Daiko. *For detailed content of the column, please refer to the related links. For more information, feel free to download the PDF or contact us.

• Rubber

For the stable operation of industrial machinery, lubricants and hydraulic oils are essential. However, these oils can also cause many rubber materials to swell and deteriorate. To address this fundamental issue, NBR (nitrile rubber) was developed. NBR is a synthetic rubber designed with the clear purpose of "performing well in oil environments," and it should be called a specialist. In this article, we will deeply analyze why NBR has become synonymous with oil resistance, exploring the essence of its performance through physical property data. Additionally, we will clarify its "strengths" and "weaknesses" as a specialist, and propose suitable material selection and processing solutions in collaboration with the specialized trading company Daiko. *For detailed content of the column, please refer to the related links. For more information, feel free to download the PDF or contact us.*

• Rubber

Outdoor use, contact with oil, repetitive motion, and safety. Industrial rubber components often require these seemingly contradictory performances simultaneously. To meet such complex demands, neoprene rubber (chemical name: chloroprene rubber, CR) was developed as an "engineering solution." In this article, we will redefine why neoprene is positioned as a "reliable standard material" for many engineers, based on its multifaceted performance data. Furthermore, we will propose specific applications and selection and processing solutions to maximize its performance in collaboration with the specialized trading company Daiko. *For detailed content of the column, please refer to the related link. For more information, feel free to download the PDF or contact us.

• Rubber

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.

• Rubber

This is an example of producing a large and complex U-shaped gasket measuring 545mm x 709mm from a non-asbestos joint sheet "Valqua No. 6500" with a thickness of 3mm, based on the customer's drawing. The processing involved drilling 17 holes with a diameter of 21mm. Using our water jet cutting machine, we achieved high precision cutting directly from CAD data. Valqua No. 6500 is a non-asbestos general-purpose joint sheet made by combining organic and inorganic fibers with NBR and other materials. It demonstrates good sealing properties against general utility fluids and has a long track record in a wide range of applications, including petroleum refining, chemical plants, ships, and general piping. [Processing Features] - Proposal for cost reduction - Low cost and short delivery time without the need for a die - Direct processing from drawings - Easy repeat orders with data storage *For more details, please download the PDF or feel free to contact us.

• Sealing

"A pure PTFE gasket is concerning due to significant deformation (creep) caused by heat. I want to choose a reliable gasket with balanced performance for a line handling various chemicals." ...In response to the needs of environments where both chemical resistance and mechanical stability are required, the standard model of filled fluoropolymer gaskets is "Valkar No. 7020" (Valkalon Gasket) from Valkar Co., Ltd. This article will thoroughly explain why No. 7020 is commonly chosen in many chemical lines, from its structural secrets to specific data supporting its performance, as well as the correct knowledge for safe use, from a professional perspective. *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

Contamination of products is something we absolutely want to avoid, but pure PTFE gaskets are prone to deformation (creep) and lack long-term reliability. Tightening management is difficult, and frequent re-tightening becomes necessary. This has been a long-standing dilemma faced by sites aiming to achieve both ultimate cleanliness and stable sealing performance. To address this challenge, the molecular structure of PTFE itself has been improved, resulting in the development of 'Valkar No. 7010-EX' (New Balfron Gasket) by Valkar Co., Ltd. In this article, we will thoroughly explain why No. 7010-EX can claim to have 'improved creep resistance,' from its structural secrets to specific data that supports its performance, as well as 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.

• Sealing

"There is no stock of standard sheet gaskets for large-diameter equipment." "There are distortions and scratches on the flange surface, and normal gaskets cannot stop the leakage." "Due to urgent maintenance, we must restore the seal immediately." …These are unexpected or difficult sealing challenges that are hard to address with standard-sized sheet gaskets. To meet this ultimate demand, the "Valkar No.7GS66A" (code seal [soft] oval type) developed by Valkar Co., Ltd. was created with the concept of "size-free." In this article, we will thoroughly explain why No.7GS66A can be a "trump card" for "emergency response" and "flanges with significant distortion," from the secret of its marshmallow-like softness to the most important "selection rules" and "correct usage" to fully utilize its performance, all 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 a line handling highly corrosive chemicals, leaks from flanges are absolutely unacceptable. With flanges that are glass-lined or resin-lined, high tightening force cannot be applied. These are the most demanding sealing challenges that require both advanced chemical resistance and the ability to conform to delicate flange surfaces. One solution to this difficult problem is the 'Fluororesin Jacket Gasket' series from Vulcan Corporation. In this article, we will thoroughly explain why this high-performance composite gasket is trusted in many chemical plants, covering its basic structure, the differences among the four main core materials (N, S, H, F types) that determine its performance, and the essential precautions that must be followed for safe use, all from a professional perspective. *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.

• Sealing

"In a line handling highly corrosive chemicals, leaks from flanges are absolutely unacceptable. Flanges with glass lining or resin lining cannot withstand high tightening forces." This presents the most demanding sealing challenge, requiring both advanced chemical resistance and the ability to conform to delicate flange surfaces. One solution to this challenge is the "Fluororesin Jacket Gasket" series from Vulcan Corporation. In this article, we will thoroughly explain why this high-performance composite gasket is trusted in many chemical plants, covering its basic structure, the differences among the four main core materials (N, S, H, F types) that determine its performance, and the essential precautions that must be followed for safe use, all from a professional perspective. *For detailed content of the column, please refer to the related links. For more information, feel free to download the PDF or contact us directly.*

• Sealing

"In a line handling strong acids and strong alkalis, the degradation and leakage of gaskets occur frequently." "With glass-lined flanges, it is impossible to apply clamping 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, the high-performance sealing material designed with the philosophy of 'the right material in the right place' is the 'fluororesin jacket gasket' from Valkar Co., Ltd. In this article, we will delve into the three significant benefits that this high-performance composite gasket brings to the field, how it can solve the challenges you face, and provide specific guidelines for selecting the right product from a wide range of options, explained thoroughly from a professional perspective. *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.*

• Sealing

"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.

• Sealing