News about Gaskets, Bolt & Nuts

About Bolts And NutsWe provide comprehensive American (such as ANSI/ASME B18.2.1 standard) flange bolts and nuts and metric (such as GB5787/ GB5789 / DIN6921) flange bolts and nuts, as well as customized services to produce bolts and nuts with special specifications and materials according to customer needs.Bolts and nuts with their unique flange design, increase contact area, disperse stress, prevent loosening, and protect the connected parts. They are widely used in fields such as automotive manufacturing,...

What Kind of Bolts and Nuts Should Be Selected for Different Load Conditions? Under different load conditions, flange bolts and nuts should be selected in the order of "determining the bearing capacity first, and then judging the fatigue and anti-loosening requirements". Generally, 8.8 grade flat bolts and nuts can be used for static load connections. A larger load can be considered at level 10.9. The vibration environment can be equipped with toothed flange bolts or reliable anti-loosening...

In the field of industrial manufacturing and assembly, bolts and nuts are indispensable basic components. However, when faced with the two common types of bolts and nuts: flanged bolts and nuts and ordinary ones, many engineers and procurement personnel may be confused: what is the difference between them? When should flanged bolts and nuts be chosen instead of regular bolts and nuts? This article will take you to a detailed understanding of the differences between them and their applicable scenarios....

Industrial connectors are shifting from price competition to a comprehensive consideration of quality and service. We focus on the manufacturing of flange bolts and nuts and provide high stability connection solutions for industries such as petrochemicals and new energy through independent production and dual system certification throughout the entire industry chain. Its quality traceability system and non-standard customization capabilities are key competitive advantages. Bolts and nuts play a...

Do You Really Know How To Tighten Bolts and Nuts? The core specification for the installation of flange bolts and nuts is contained in this article. In flange connection systems, bolts and nuts may seem inconspicuous, but they are the key to ensuring tight flange sealing and stable pipeline operation. Many industrial practitioners have the misconception that "tightening is enough" during installation. Incorrect installation methods can lead to uneven stress on plastic flanges,...

Does the Flange Seal Always Leak? How to solve the problems of acid and alkali resistance and rebound of expanded PTFE sealing gaskets? In pipeline flange connections in industries such as chemical and petrochemical, the medium often contains strong acids, strong alkalis, or corrosive gases. Traditional asbestos gaskets or ordinary PTFE gaskets often experience "leakage" due to uneven flange surfaces and insufficient compression rebound of the gaskets during use. This not only increases...

What is a gasket? A valve gasket is usually used to prevent pressure, corrosion, and natural thermal expansion and contraction leakage between two objects in the pipeline. Almost all valves that require flange connections will use valve gaskets, but their specific usage location and importance vary depending on the valve type and design. Next, let us explain the position of the valve and the material of the gasket. The main usage position of 01 gasket: the "flange interface" of flange...

If There Is a Leak In the Gasket, You Can Start By Checking With the Torque Wrench First There are three types of gasket leakage, and the first case is the most common one. Interface leakage - The medium escapes from the contact interface between the gasket and the flange, accounting for 80% to 90% of the total leakage. This is the most common form of leakage, usually due to insufficient pre tightening force, rough flange surface, or insufficient gasket rebound ability. Penetration leakage - The...

Why do bolts and nuts have lower strength with increasing use? The primary task before using bolts and nuts is to design their strength and material properties based on the specific usage environment. Normally, bolts and nuts can be reused after installation. However, in reality, when a bolt is repeatedly used, its strength will decrease, a phenomenon known as bolt torque decay. This gradual decrease in strength is particularly common in the use of automotive bolts and nuts. We have been tracking...

Common fasteners - bolts and nuts. How does the torque of bolts decay? 1. Why use bolts and nuts? 2. Basic terms and principles of tightening 3. Dynamic torque and static torque 4. Torque attenuation I. Why use bolts and nuts? • Simple assembly • Easy disassembly • High efficiency • Low cost II. Basic terms and principles of tightening 1. Tightening and its principle Tightening principle The bolt is inserted into the connected part and tightened with a nut or internal thread...

In the installation and maintenance of equipment and pipelines, the tightening of flange bolts and nuts may seem like a basic operation, but it is actually a key link in ensuring equipment sealing performance and avoiding leakage accidents. Loosening too much can easily cause medium leakage, while tightening too tightly may lead to the bolt breakage and gasket loss, especially for important equipment that is prone to high temperature, high pressure, flammability, and explosion. Even a...

In mechanical assembly and daily maintenance, bolts and nuts fastening may seem simple, but there are many overlooked misconceptions that can lead to unstable equipment operation, loose connections, and even accidents. Today, we will uncover these common screw tightening misconceptions and help everyone operate correctly to ensure a secure and reliable connection. Pore mismatch The fit between bolts and nuts and holes of bolts and nuts is the foundation of fastening. If the pore is too large, the...