Showing 61–80 of 176 results

Causes and Solutions of Rusting in High-Pressure Ball Valves

High-pressure ball valves, designed to rotate around the axis of the valve stem, are crucial components in hydraulic machinery, hydraulic switches, natural gas systems, and other applications. Emerging in the 1950s, they have rapidly evolved into a primary valve type with advancements in production processes and product structures over the past 40 years. I. Reasons for Rusting of High-pressure Ball Valves The susceptibility of high-pressure ball valves to rusting varies with the environment. While...

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Test Results of Forging Medium and High-pressure Valve Bonnets

4. Analysis of test results (1) The problem of thin forging at the top: When the thickness of the blank is certain, it is possible to make the top size of the workpiece thinner by forging. Under our experimental conditions, when the thickness of the blank is less than 6 to 7mm, thin forging will be difficult. For the pre-forged thin bad material, place it on the forming die. On the one hand, the workpiece is thin and heats up quickly; on the other hand, it is in contact with the mold at a lower...

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Correct Installation of Forged Steel Check Valves

Forged steel check valves come in two body-cover connection designs: one with a bolted body cover and the other with a fully welded body cover. The bolted body cover design features a bolted connection with a gasket seal, allowing for easier maintenance. On the other hand, the fully welded body cover design ensures a leak-free seal with welded connections. Here are essential guidelines for the correct installation of forged steel check valves: Valve Disc Types: 1. For swing check valves, the valve...

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Forging Medium and High-pressure Valve Bonnets

Forging has been a traditional method of manufacturing various components for centuries. In the field of forging valves, forging plays a crucial role in creating durable and reliable bonnets for medium and high-pressure valves. The process involves shaping metal through heat and pressure, resulting in a product that exhibits superior strength and resistance to wear. Medium and high-pressure valves are essential components used in industries such as oil and gas, petrochemicals, and power generation....

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Forging Process and Production of F91 Gate Valve Bodies

Gate valves serve as crucial control components in fluid transportation systems within industries such as power plants, chemicals, and petroleum. The valve body, a primary component of gate valve structure, functions as a conduit for fluid media, enduring pressure, temperature, and corrosion. F91 steel, classified as an improved 9Cr-1Mo high-strength ferritic heat-resistant steel, exhibits exceptional oxidation resistance, resistance to high-temperature steam corrosion, and impressive impact toughness....

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Forging Knowledge of Valves

Forging Process is a method of processing metal blanks using forging machinery to apply pressure, resulting in plastic deformation to obtain forged parts with specific mechanical properties, shapes, and sizes. It is one of the two major components of forging (forging and stamping). Valves, when classified by the forging process, can be divided into forged valves and cast valves. This article will share knowledge about forged valves from different perspectives. Deformation Temperature The starting...

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Innovative Design of Flanged Forged Steel Ball Valves

The forged steel ball valve operates by rotating around the valve body's centerline for opening and closing. Equipped with a unique automatic pressure relief function, the sealing element is embedded in the stainless steel valve seat, ensuring bidirectional sealing and pressure relief in the middle chamber. This design allows the valve to achieve leakage sealing under varying pressure differences, making it suitable for diverse working conditions. The flange forged steel ball valve has proven...

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Causes and Solutions for Internal Leakage in Forged Steel Ball Valves

The operation of a forged steel ball valve involves the rotation of the stem to open or close the valve. This type of valve is characterized by its light switch, compact size, and adaptability to large calibers. It offers excellent sealing performance, simple structure, and easy maintenance. The sealing surface and spherical surface are consistently in a closed state, minimizing erosion by the medium. Despite its widespread use across various industries, issues like internal leakage can pose challenges...

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The Superiority of Forged Steel Ball Valves in Various Industries

Forged steel ball valves are extensively employed in multiple industries, manufactured through the forging method. These valves surpass the quality of cast steel components, showcasing greater resilience against substantial impact. They exhibit superior plasticity, toughness, and other mechanical properties compared to cast steel parts. Consequently, all critical machine components should incorporate forged steel ball valves. Due to their outstanding performance, these valves find widespread applications...

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The Improvement Plan for Forged Copper Valves

Forged copper valves are a popular choice in various industries due to their durability, strength, and resistance to corrosion. These forged copper valves are manufactured using a forging process that involves shaping the copper into the desired form through intense heat and pressure. In contrast, traditional valves are typically made from cast iron or steel. One key advantage of forged copper valves is their superior strength. The forging process aligns the grain structure of the metal, making...

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Defects of Forged Copper Valves

What is a forged copper valve? The forged copper valve is a remarkable invention that has revolutionized the field of engineering. With its exceptional durability and versatility, this forged valve has become an indispensable component in various industries, which can be used in a wide range of applications, including plumbing systems, HVAC systems, and industrial machinery. Its ability to regulate fluid flow with precision makes it an essential component in controlling processes and maintaining...

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Forging Hollow Valve Spheres

The hollow sphere is an important part of the forged valve. In addition to good corrosion resistance, high impact is also required. Therefore, OCrI7Ni12Mo2 austenitic stainless steel is used for forging.   Figure 1 The diagram of parts   1. About the forging performance of OCr17Ni12Mo2 The deformation resistance of OCr17Ni12Mo2 at high temperatures is about twice that of carbon structural steel and alloy structural steel, and there is no allotropic transformation in the heating process....

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Forged Steel Gate Valves

Forged steel gate valves are an essential component in various industries. These valves are designed to control the flow of fluids by opening or closing a gate mechanism. The term "forged" refers to the manufacturing process used to create these valves, which involves shaping solid pieces of steel through intense heat and pressure. One of the key advantages of forged steel gate valves is their durability. The forging process creates a strong valve that can withstand high pressures and...

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Forged Gate Valves

Forged valves A forged valve is an essential part in many industrial applications, including oil and gas, chemical processing, and power generation. These valves are manufactured using a forging process that involves shaping metal under high pressure and temperature to create a strong and durable product. Forged valves are valves such as forged check valves, butterfly valves, gate valves, globe valve, needle valves, diaphragm valves, etc. One of the key benefits of forged valves is their superior...

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Large Diameter High-temperature and High-pressure Integral Forged Globe Valves

The structural characteristics, working principle and performance of integrally forged globe valves for large-scale thermal power boiler units are introduced; the use and maintenance of forged globe valves are discussed and materials for main parts are selected.   1. Overview In recent years, with the mass production and operation of high-parameter, large-scale units and supercritical thermal power units, the requirements for generating units are getting higher and higher. The globe valve is...

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Forged Stainless Steel Valves

What is a forged stainless steel valve? A forged stainless steel valve is a type of forged valve that is made from high-quality stainless steel. These valves are designed to withstand high pressure and temperature conditions, making them ideal for use in various industrial applications. Forged stainless steel valves are an essential component in various industrial applications, including oil and gas, chemical processing, and power generation.   The forging process The forging process of these...

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Analysis of Strength of Finite Element Model of Valve Bodies

Aiming at the high-risk working conditions of the hydrogenation valve, the overall forging structure of the valve body is designed. Aiming at the complexity of the influence of valve body materials, runner forms, and integral forging structure on valve body’s quality. The finite element analysis software Patran is used for strength analysis, and the stress and deformation of the valve body in all directions under the maximum working condition are obtained, which verifies the rationality of...

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Structural Design of Hydrogenation Valve Bodies

The hydrogenation valve is a dedicated valve used in flammable and explosive occasions containing industrial hydrogen in the medium. The current petrochemical industry uses imported high-pressure hydrogenation valves in China based on the high risk of hydrogenation valves. To speed up the process of domestic hydrogenation valves and ensure the quality of hydrogenation valves, the structural design of the key parts of hydrogenation valves such as the valve body is particularly necessary. Taking a...

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Design of two-piece forged titanium ball valves with small diameters

Abstract The design process of the small-diameter two-piece forged titanium ball valves is introduced, the overall material consumption of the valve can be reduced and the cost can be saved by optimizing the structure of the valve body and bonnet.    There is rich titanium in the earth's crust, but its activity is high. It takes a lot of energy to dissociate titanium from titanium ore and smelt it into sponge titanium. The melting point of pure titanium is as high as 1 668±4°C,...

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The Sealing of Fully Welded Forged Ball Valves for Natural Gas Pipelines (Part two)

2. Reasonable design of key components (1) Sealing In the reasonable design of the sealing structure of fully welded ball valves in natural gas long-distance pipelines, attention should be paid to the design content of key components. The most important thing is to accurately calculate the sealing force to improve the service life of the ball valve’s sealing structure. In general, when calculating the sealing force, it is necessary to give a highly reliable calculation result of sealing...

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