News about Gaskets, Bolt & Nuts

Function, Classification, and Selection of Flange Gaskets

In high-pressure and impurity environments, flange gaskets ensure sealing and maintain stable liquid gas transmission through filling space and tight fitting design. Non-metallic, semi-metallic, and metallic gaskets are suitable for different working conditions, and ASME standards accurately regulate materials and processes. From low-pressure full plane to high-temperature ring connection surfaces, the soft and hard materials are precisely interlocked under bolt pressure, achieving the ultimate...

Aug 18, 2025

Detailed Steps and Notes for Replacing Flange Gaskets

Detailed Steps And Notes for Replacing Flange Gaskets 1. Preliminary preparations Before starting to replace the flange gasket, we need to ensure that we have made sufficient preparations. Before replacing the flange gasket, wear appropriate labor protection equipment such as gloves, goggles, etc. to ensure safety and protection during the operation. These preparations include understanding relevant safety regulations, preparing necessary tools and equipment, and ensuring the safety and cleanliness...

Aug 08, 2025

The Importance, Advantages and Market Analysis of Flange Gaskets

Flange Gaskets: The global market size will expand to USD 2.271 billion by 2030. Flange gaskets: Innovation in sealing technology and a new blue ocean for market growth Flange gaskets: unlocking a new era of industrial sealing, with unlimited market potential expanding The cornerstone of sealing technology and the surging momentum of the market In the intricate connections between industrial pipelines and equipment, flange gaskets, as indispensable sealing components, play a crucial role in safeguarding...

Jul 20, 2025

Material Selection and Installation of Flange Gaskets

Analysis of Flange Gaskets: A Guide to Material Selection and Installation Graphite composite gaskets, with their excellent sealing performance under high temperature and high pressure, have become key components in industrial connections. When selecting a model, it is necessary to consider both the characteristics of the medium and installation and maintenance. Meanwhile, intelligence and environmental innovation are leading the future of the industry. 1. Basic knowledge and application of gaskets...

Jul 10, 2025

How to Tighten Flange Bolts and Nuts Scientifically?

How to Tighten Flange Bolts and Nuts Scientifically? Technical requirements for fastening during the installation process of equipment and pipeline flanges Inspection of flange fasteners ● Gaskets: During installation, ensure that the gasket is new, clean, and dry, and check for any defects or damage. Old gaskets cannot be reused. Before installation, confirm that the size and grade of the gasket used are consistent with the flange markings. ● Flanges: Before installation, check the flange surface...

Jun 20, 2025

Why Is It Not Recommended to Use 304 Material for Bolts and Nuts?

Why Is It Not Recommended to Use 304 Material for Bolts and Nuts? (1)304, 304L What is the basic difference between 316 and 316L materials? 304, 304L, 316 and 316L are commonly used stainless steel materials in flange joints, including flanges, sealing components, and fasteners. 304, 304L, 316 and 316L are stainless steel grade codes in the American Standards for Materials (ANSI or ASTM), belonging to the 300 series of Class I steels of austenitic stainless steel. The grade corresponding to the...

Jun 10, 2025

Brief Introduction of Gaskets And Bolts And Nuts

Brief Introduction of The Gaskets And Bolts And Nuts Gasket types (rubber, metal, spiral-wound) and bolt materials (steel, alloy) ensure flange sealing under varied temperatures/pressures. Proper selection prevents leaks and enhances pipeline safety. 1.​ Flange gaskets In pipeline flange connections, flange gaskets play a crucial role as seals between two flanges. Due to the fact that flange failure usually manifests as leakage, the main task of gaskets is to fill gaps, prevent medium leakage,...

May 20, 2025

The Sealing of Flanges And Gaskets

Abstract: Flange sealing relies on bolt preload and gasket deformation to prevent leaks. Key factors include gasket type (metal/non-metal), surface design (flat, groove, ring), and operational conditions. Proper installation ensures safe, efficient pipeline connections.  Introduction: In petrochemical plants, flanges are one of the most important and common forms for connecting pipelines, fittings, valves, instruments, and equipment. Although this type of connection has the advantages of easy...

May 10, 2025

Rubber Gaskets for Flange Connections

Rubber Gaskets for Flange Connections: A Comprehensive Guide In critical pipeline systems—from petroleum and chemical processing to food and pharmaceutical industries—rubber flange gaskets play a vital role in ensuring leak-free operations. Their corrosion resistance, pressure tolerance, and flexibility make them indispensable for maintaining the integrity of industrial pipelines. Proper selection, installation, and maintenance of these gaskets are crucial for achieving a decade-long...

Apr 25, 2025

Materials of Flange Gaskets and Selection Guidelines

Exploring the Materials of Flange Gaskets and Selection Guidelines Flange gaskets, as the core sealing components in flange connections, are undeniably critical to system integrity. These circular ring-shaped materials, capable of plastic deformation while maintaining structural strength, work in conjunction with flanges and fasteners to ensure leak-proof connections and reliable sealing between pipelines, valves, and equipment. Despite their importance, gasket selection is often overlooked during...

Apr 10, 2025

Gasket Types & Selection for Industrial Flanges

Spiral-Wound Gaskets (1) Applicable Scope of the Spiral-Wound Gasket According to the petrochemical industry standard SH 3407-2013, spiral-wound gaskets are suitable for the following conditions: Nominal pressure range: PN 1.0–25.0 MPa Temperature range: Stainless steel strips with special asbestos filler: –50 to 500 °C Stainless steel strips with flexible graphite filler: –196 to 800 °C (≤ 600 °C for oxidizing media) Stainless steel strips with PTFE filler: –196...

Mar 20, 2025

Standards and Selection of Gaskets

Standards and Selection of Gaskets This article provides a comprehensive overview of gasket standards, manufacturer selection criteria, and selection methodologies. It outlines key gasket standards used in the chemical and petrochemical industries, specifies requirements for gasket manufacturers, and discusses critical factors in gasket selection, including pressure, temperature, and medium compatibility. Various gasket types—such as asbestos-rubber, PTFE, and spiral-wound gaskets—are...

Mar 09, 2025