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Cause Analysis and Countermeasure of Seal Gasket Leakage

I. Preface Leakage is a common phenomenon in chemical production, and it is also a problem that must be solved in safety production of chemical industry. Once all kinds of chemical pipelines and equipment leak, they will be wasted, and the whole plant will be shut down. Some leaks will do harm to people and the surrounding environment. Therefore, people do everything possible to prevent leakage in production practice. In chemical pipeline transportation process, flange connection and sealing are necessary, and the quantity is large and wide. Reasonable selection of flange sealing form and gasket material can effectively prevent leakage, […]

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Selection Standards and Requirements for Various Pipelines

Pipeline is a device for conveying gas, liquid or fluid with solid particles, which is connected by pipes, pipe connectors and valves. Usually, when the fluid is pressurized by blowers, compressors, pumps and boilers, it flows from the high-pressure part of the pipeline to the low-pressure part. It can also be transported by the pressure or gravity of the fluid itself. Pipeline is widely used, mainly in water supply, drainage, heating, gas supply, long-distance transportation of oil and gas, agricultural irrigation, hydraulic engineering and various industrial devices. Selection Standards and Requirements for Various Pipelines Seamless steel pipe Standard: Article 1: […]

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Current Situation of China’s Iron and Steel Enterprises and Demand Analy……

Investigation in Tangshan District 1. Demand side is weakening at the present stage and is expected to recover in the second half of the year. With the year-on-year increase in real estate demand from the beginning of the year to May, steel prices and steel profits have a wave of obvious expansion, but since May, steel prices and steel profits have been significantly reduced, we can see that the accumulation is caused by the periodic decline in demand. According to the intensive investigation in the past two weeks, the feedback from both the terminal and the steel mill industry shows […]

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Selection and application of mandrel in bend

ABSTRACT: The deformation of pipe in cold bending is introduced, and the method of bending ideal small radius pipe fittings is achieved by choosing mandrel reasonably and mastering its correct use method. Key words: stress; mandrel; relative bending radius; relative wall thickness Introduction Process Analysis Choice of Bending Way Selection of mandrels Correct use of mandrels 1. Introduction Bending pipe technology is widely used in boiler and pressure vessel industry, central air conditioning industry, automobile industry, aerospace industry, shipbuilding industry and other industries. The quality of bending pipe will directly affect the structural rationality, safety and reliability of products in […]

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How to choose a valve?

Valve is the control part of the fluid conveying system. It has the functions of cut-off, regulation, diversion, countercurrent prevention, stabilization, diversion and overflow relief. In the field of industrial production, choosing the right valve is particularly important for the overall control of the production process. With the continuous development of valve technology, the application field of valves is expanding, and the functions are becoming more and more perfect. In the face of various valve types and different application conditions, how will you choose valves correctly? Characteristics of Valves Valve Selection Basis Principles to be followed in valve selection How […]

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What are metal serrated gaskets?

What are metal serrated gaskets? Metal serrated gaskets belong to a kind of metal composite gaskets. Generally, the zigzag grooves with 90 degree angle of concentricity are machined on the two sides of metal flat gaskets by precision lathe or special milling machine. Because the contact with other sealing surfaces is a linear contact of many concentric circles, they have labyrinth sealing effect. Flexible graphite can be selected according to different media and working conditions. PTFE, asbestos-free board or some other soft metals are pasted on the two sides of the gasket, making use of the sealing property of the […]

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What is a sealing gasket?

What is a sealing gasket? Sealing gasket is a kind of sealing spare parts used in machinery, equipment and pipeline as long as there is fluid. It uses internal and external materials to seal. Sealing gasket is made of metal or non-metal plate material by cutting, stamping or cutting. It is used for sealing connection between pipelines and between machine parts. According to the material, it can be divided into metal sealing gasket and non-metal sealing gasket. Metals include copper gaskets, stainless steel gaskets, iron gaskets, aluminum gaskets, etc. Non-metallic asbestos gaskets, non-asbestos gaskets, paper gaskets, rubber gaskets, etc. Material […]

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What is a compensator?

What is a compensator? Compensator is also known as expansion joint, or bellows expansion joint. The utility model is composed of a bellows (an elastic element) constituting the main body of the bellows and accessories such as an end pipe, a bracket, a flange, a conduit, etc. The utility model belongs to a compensation element. The effective expansion deformation of bellows is used to absorb the size changes of pipelines, conduits and containers caused by thermal expansion and cold contraction, or to compensate the axial, transverse and angular displacements of pipelines, conduits and containers. It can also be used for […]

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Cause Analysis and Countermeasure of Flange Seal Leakage

Leakage is a common phenomenon in chemical production, and it is also a problem that must be solved in safety production of chemical industry. Once all kinds of chemical pipelines and equipment leak, they will be wasted, and the whole plant will be shut down. Some leaks will do harm to people and the surrounding environment. Therefore, people do everything possible to prevent leakage in production practice. In chemical pipeline transportation process, flange connection and sealing are necessary, and the quantity is large and wide. Reasonable selection of flange sealing form and gasket material can effectively prevent leakage, and make […]

Recently Shipment to Mid Asia Projects

Brief Introduction of Solution Treatment Heat Treatment Process for 304 Stainl……

Austenitic stainless steel is a kind of stainless steel with austenitic structure at room temperature. Steady austenite structure occurs in steels containing about 18% Cr, 8%-10% Ni and 0.1% C. Austenitic stainless steel is nonmagnetic and has high toughness and plasticity, but its strength is low. It is impossible to strengthen austenitic stainless steel by phase transformation. It can only be strengthened by cold working. If S, Ca, Se and other elements are added, it has good machinability. In addition to oxidation resistance and acid medium corrosion, such steels can also resist sulfuric acid, phosphoric acid, formic acid and acetic […]

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