News about Gaskets, Bolt & Nuts

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...

Did You Choose Right Flange Gaskets for The Installation of The Electromechanical System? In the flange connection of industrial pipelines and equipment, the material selection of the sealing gasket directly determines the sealing effect, equipment operation safety, and service life. The sealing gaskets made of different materials have significant differences in temperature resistance, pressure resistance, and medium corrosion resistance. Only by selecting the right material can they accurately...

Detailed Explanation of Three Types of Flange Gaskets And Their Usage Characteristics The selection of flange gaskets, as key sealing components in pipeline flange connections, is directly affected by the medium, pressure, and temperature. In the process of flange connection, gaskets play a crucial role in significantly improving the sealing performance of the connection and ensuring the stable operation of the system. Usually, there are various types of gaskets, including graphite gaskets, metal...

In the vast ocean, ships are like a moving steel castle, and every connection of this castle is crucial. The flange gasket, this seemingly inconspicuous small component, is the key to ensuring the sealing performance of ship pipeline systems. It silently withstands the tests of pressure, temperature, and corrosion, ensuring that critical components such as the ship's power system, fuel system, and cooling system do not leak. This article will take you to a deeper understanding of the relevant...

Break The Limit! Fluororubber gaskets ensure the safety operation of concentrated sulfuric acid storage tanks. Dear everyone, today I would like to introduce to you a revolutionary material - fluororubber gaskets. It is particularly suitable for flange connection of concentrated sulfuric acid storage tanks due to its unique properties, which are the key to ensuring equipment safety and improving work efficiency. 1.​ Unparalleled acid and permeability resistance The Fluororubber gasket is a gasket...