Showing 1–20 of 177 results

Optimized Manufacturing Process for F304 Steel Valve Body Forgings

Abstract: F304 steel is an austenitic stainless steel commonly used in the manufacturing of valves. In this study, a Ø500 mm electroslag remelted ingot of F304 steel with an optimized chemical composition was forged with a forging ratio of 2.4. This was followed by a solution treatment at 1,050 °C for 3 hours with water cooling, and then a sensitization treatment at 670 °C for 1 hour followed by air cooling. The microstructure and mechanical properties of the forgings...

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Optimization of the Forging Process for F92 Large Valve Body

ASTM A182 F92 is susceptible to surface cracking under improper forging due to its high alloy content. Additionally, its high chromium (Cr) and tungsten (W) content significantly reduces the effectiveness of conventional flame-based defect detection methods, which in turn reduces production efficiency. Severe surface cracks may render the product non-compliant with quality standards. Therefore, optimizing the forging process for F92 large valve is essential.   ASTM A182 F92 complies...

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Two Multi-Directional Die Forging Methods for Ball Valve Bodies

Ball valve bodies are critical components in valves, traditionally manufactured through casting. However, casting is prone to defects such as porosity, shrinkage, and dendritic formation, which can prevent valves from meeting performance requirements in harsh operating conditions. To enhance the mechanical properties of ball valve bodies, researchers and manufacturers have turned to forging techniques, particularly free forging and die forging. These methods, however, generate substantial material...

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Ultra-High-Pressure Forged Self-Sealing Pre-Start Control Valve

Abstract This report presents an ultra-high-pressure forged pre-start multi-stage adjustable self-sealing control valve, focusing on its structural features and operating principles. A comparative analysis of the product structure, manufacturing process, and overall performance was conducted. The design improvements for the steam control valve include integral forgings for pressure-bearing components and a multi-stage sleeve with a pre-start auxiliary valve core, featuring an adjustable self-sealing...

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Modular Structure & Design of a Small-Diameter Forged Regulating Valve for LNG Systems

Abstract: In the LNG industry, achieving a high adjustability ratio in a small-diameter globe regulating valve that must handle both large and micro flow rates is challenging. To address this challenge, a modular valve trim design was developed, combining structures for both large and small flow regulation after analyzing the technical requirements and design difficulties. This modular design builds on the existing structure of the large-flow regulating valve. By adding a small-flow component,...

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The Multi-Directional Die Forging Process of High-Pressure Plug Valves

High-pressure pipes play an important role in oil industry equipment and are widely used in oilfield drilling, cementing, logging, and fracturing operations. They are also used in oil testing operations, continuous tubing operations, sand control operations, and offshore platforms. As the difficulty of fracturing operations increases, the pressure level of the manifold continues to rise, with a pressure load capacity of 105MPa becoming more common. The plug valve controls the circulation and...

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Measures to Address Hot Forging Die Failures in Valve Forgings

Proposed Measures Abstract: The quality of forgings is the foundation for the quality of forged steel valves, and the hot forging die is the most fundamental element of the forging process. There are numerous factors that contribute to the failure of hot forging dies. To address the issue of die failure, multiple measures are implemented during the mold production process, including the combination of an old mold, storm treatment, GORE3755-FCG type flux-cored welding repair, and CNC forming...

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Analysis of the Causes of Hot Forging Die Failure of Valve Forgings

1. Overview The die is a critical component in the hot forging process. The quality of the die directly impacts both the production efficiency and the product quality of the valve forgings. Die failure frequently occurs during the production process. Through storm treatment, surfacing repair, and CNC forming of the used die with a cracked cavity, the "scrapped" die can be reused, extending its service life and significantly improving the surface quality of the product.   2. Analysis...

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Manufacturing Process of Forged Valve Bodies

The manufacturing process of forged valve bodies is a complex and precise engineering task that involves several critical steps. Each step plays a vital role in determining the performance and reliability of the final product. The valve body is the core component of the valve, designed to withstand fluid pressure and temperature. Therefore, the manufacturing process must ensure high strength, durability, and the ability to adapt to harsh conditions. Below is a detailed overview of the manufacturing...

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Forged Steel Gate Valves: Parallel and Wedge Types

  Forged steel gate valves are essential components in various piping systems due to their excellent sealing performance, high-temperature, and high-pressure resistance. They are a popular choice for fluid control. There are two main types of forged steel gate valves, classified by their sealing surface configurations: wedge gate valves and parallel gate valves. This article will explore the structural features, advantages and disadvantages, applicable scenarios, and working principles of these...

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Forged Steel Strainers: Durable Filtration Solutions

  Forged steel strainers are high-strength, corrosion-resistant industrial devices widely used in demanding environments. Their primary function is to filter out impurities and particles from fluids, ensuring the purity of the medium and the safety of the system. Made from forged steel, these strainers offer excellent mechanical strength and are capable of stable operation in harsh conditions like high temperature and pressure. The structure, design features, and versatility of forged steel...

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Ensuring the Safe Operation of Forged Steel Gate Valves

Forged steel gate valves are critical components in fluid control systems, with their safety and reliability directly impacting the stability and efficiency of production processes. Widely used in industries such as oil and gas, chemical, and power generation, ensuring the safe operation of these forged gate valves is essential for equipment performance, environmental protection, and personnel safety. Consequently, implementing systematic safety measures is crucial. These measures encompass sealing...

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Research on Multi-layer & Multi-pass Welding Processes Domestically and Internationally

Current Research Status of Multi-layer and Multi-pass Welding Processes Research on multi-layer and multi-pass welding processes, both domestically and internationally, primarily focuses on welding residual stress, with an emphasis on predicting and eliminating residual stress distribution post-welding. Research methods can be categorized into two approaches: experimental research and numerical simulation. Heat treatment is commonly used to eliminate residual stress after welding. However, due to...

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Multi-Layer and Multi-Pass Welding of Forged Ball Valve Bodies

As industries develop, the demand and consumption of energy continue to grow. The extensive use of coal energy can lead to serious environmental problems. Therefore, oil and natural gas have gained national attention due to their clean and efficient advantages. Over the past five years, the proportion of coal in total energy consumption has gradually decreased, while the share of oil and natural gas has increased, as shown in Figure 1. Figure 1 Proportion of coal, oil, and natural gas in total...

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The Advantages of Forged Steel Valves In High-Pressure Systems

In complex infrastructure in industries such as oil and gas, petrochemicals, and power production, the reliability and efficiency of equipment is critical. Especially in high pressure systems, valves, as a key component, must ensure stable operation. In such extreme conditions, the material selection of the valve is particularly important, among which forged steel is preferred because of its special properties. This paper explores the advantages of forged steel valves in high-pressure systems, highlighting...

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Application of Forged Valves in Water Treatment Plants

In the field of water and wastewater treatment, efficient and reliable equipment is the key to ensure the smooth operation of the system. As a core component in these facilities, forged valves play a vital role for their superior durability and performance. This article will discuss in detail the main applications of forged valves, their advantages and how to improve the overall efficiency of the water treatment process. Learn about Forged Valves Forged valves are made of metal that is heated and...

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A Comprehensive Guide to Forged Steel Valves

Valves are central to controlling, directing and managing the flow of liquids and gases in millions of industrial applications around the world every day. In the steel mills of large cities, forged steel valves quietly play a huge role in precisely controlling the flow of liquids and gases. While these valves are often overlooked, they have a direct impact on ensuring the safety of drinking water and the smooth operation of large energy facilities. What is a Valve? The function of the valve can...

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Application of Forged Valves in Infrastructure Projects

In modern society, the construction industry is an important foundation supporting daily life. Whether it is the construction of roads and Bridges, or energy facilities and water treatment plants, a variety of components are needed to keep the infrastructure running properly. Among them, the valve, as an unknown "hero", plays a vital role in regulating the flow of liquids, gases and fluids. In the construction industry, forged valves are highly prized for their superior reliability, robustness...

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Everything You Need to Know About Forged Steel Three-Piece Ball Valves

In a variety of industrial applications, a reliable and efficient valve system is critical, especially when dealing with liquid and gas flows. As a key component, the forged steel three-piece ball valve is widely used in many industries for its excellent performance and durability. This article will discuss in detail the key features, benefits, application areas of the forged steel three-piece ball valve and provide an in-depth guide to best practices for their installation, maintenance and optimal...

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Different Types of Check Valves and Their Applications

In order to ensure the efficient and safe operation of the piping system, it is essential to select the right type of check valve. Check valves play a central role in preventing backflow and protecting water hammers. Different types of check valves are designed for different flow conditions and performance requirements, which makes choosing the best check valve for a particular project complicated. This article will compare various check valve types and their application examples to help you choose...

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