Page 2 of Industrial Valves News: Company, Products, Industry

The valve stem is a critical component of industrial valves, primarily responsible for transmitting operating forces or power to open or close the valve and ensuring precise positioning of the valve disc. Depending on the valve's design, the stem may provide either linear or rotary motion. In gate valves and globe valves, the stem drives the valve disc through linear motion to regulate fluid flow. Conversely, in ball valves, plug valves, and butterfly valves, the stem controls the flow by rotary...

The pressure testing of parallel double disc gate valves is a critical procedure to ensure the valve's quality and reliability. Through a scientific and rigorous testing process, it is possible to verify the valve's pressure-bearing capacity, sealing performance, and service life under various operational conditions. By following standardized testing steps, the gate valve can meet design specifications and maintain excellent performance during operation, ensuring the safety and stability...

In industrial valves, rubber seals play a crucial role. They not only prevent fluid leakage but also ensure the proper operation and stability of the system. The quality of the seals directly affects the performance and lifespan of the valve. Therefore, seal failure can lead to decreased efficiency, operational failures, or even safety incidents. Understanding the role of rubber seals, the causes of their failure, and taking preventive measures are essential to maintaining the stable operation of...

Fully welded ball valves have become essential equipment in industries such as oil, natural gas, chemical, and power due to their superior sealing performance, unique structural design, and broad adaptability. Under harsh working conditions, their stability and reliability make these ball valves highly favored. This article delves into the characteristics, structural design, maintenance, disassembly, and installation of fully welded ball valves, providing a detailed analysis of their industrial...

Ball valves are critical control components in industrial pipeline systems, extensively used in pressure pipelines, pressure vessels, boilers, and other equipment to facilitate the flow, shutoff, and regulation of media. Their applications span a wide range of industries, including liquefied natural gas, power generation, light industry, construction, and metallurgy. As a key sealing element, the rubber O-ring (hereafter referred to as the O-ring) is an ideal choice for achieving efficient sealing...

Industrial valves are core components in fluid control systems, and their material directly affects performance, durability, and suitability for various applications. Different valve materials have their own strengths and weaknesses depending on the operating conditions, such as temperature, pressure, and the nature of the media. Below is a detailed analysis of common valve materials, highlighting their characteristics and suitability for different working conditions. Cast Iron Valves Cast...

A Steam jacketed ball valve, also known as a jacketed ball valve, is an industrial valve designed specifically for handling high-viscosity, easily solidifying fluids. This valve features an external metal jacket that forms an insulation channel around the valve body, allowing steam or other heating mediums to be injected into the channel. This design keeps the medium inside the valve flowing smoothly by maintaining the necessary temperature, which also minimizes heat loss between the valve and pipeline....

In many industrial applications, check valves are essential components for preventing reverse fluid flow and ensuring safe operation of equipment and systems. However, traditional swing and lift check valves often encounter issues such as valve disc sticking, poor sealing, and maintenance challenges, which can impair performance. Moreover, these valves can cause strong water hammer effects when closing, with hammer pressures often far exceeding the system's working pressure, posing serious risks...

Underwater flat gate valves play a vital role in oil and gas extraction and deep-sea operations, especially in terms of sealing technology. With the advancement of technology, the sealing structures of underwater gate valves have become increasingly diversified. Depending on the number of valve seats and the principle of sealing, underwater flat gate valve sealing structures can be classified into single-seat sealing and split-seat sealing. This article will explore the characteristics, working...

High-pressure slab gate valves are specialized valve systems designed for high-pressure, low-temperature, and high-sulfur environments. These valves are widely used in the transportation of natural gas, oil, water, and other corrosive media. Featuring innovative structural design, carefully selected materials, and excellent sealing, these gate valves offer exceptional corrosion and wear resistance, ensuring reliability and safety even under extreme conditions. This article provides an overview of...

Parallel gate valves are widely used in various fluid control systems. However, under certain operating conditions, they may experience a phenomenon known as pressure locking (sometimes referred to as partition pressurization). This issue is primarily caused by thermal expansion of the fluid, especially when the gate valve is closed and the fluid is trapped in the valve body's chamber. As the temperature rises, the fluid expands, which may increase the pressure inside the chamber, potentially...

Globe valves are widely used in fluid pipelines for regulating flow. Their primary function is to control the flow rate of fluids by adjusting the position of the valve plug. Typically, globe valves have a T-shaped body design, making them suitable for installation in straight pipelines. This design allows the fluid to enter through the center of the valve, make two 90-degree turns, and exit through the valve seat. The position of the valve plug determines the flow path, making the design and operation...