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Ball Valves: Design Standards and PerformanceStructure and FunctionBall valves are quarter-turn valves that use a spherical ball to control the flow of fluids. The ball has a hole through the middle, and when the valve is open, the hole aligns with the pipeline, allowing fluid to pass through. When
I. Analysis of the Causes of Excessive Switching Torque of Ball Valves<br /> (A) Problems with the Valve Body Structure<br /> • Unreasonable Sealing Structure: Insufficient machining accuracy of the sealing surface or improper selection of sealing materials will lead to an increase in the friction between the ball and the valve seat, thereby increasing the switching torque.
Valves are indispensable components in fluid transportation systems, and their main functions are to control the flow direction, pressure and flow rate of fluids. However, valves will generate certain flow resistance during the working process, which will not only reduce the flow rate of the system but also increase energy consumption. Therefore, optimizing the flow resistance coefficient of valves and improving their flow capacity have important practical significance.
Gate Valves: Design Standards and Industry NormsStructure and FunctionGate valves are linear motion valves that use a gate or wedge to control the flow of fluids. The gate moves perpendicular to the flow direction, allowing for precise control and reliable sealing. When fully open, the gate is retra
In steam systems, the selection of valves is crucial for the safe and efficient operation of the systems. The BS 1873 standard provides important technical guidance for the design and operation of steam systems.
In the industrial field, the emergency shutdown system is one of the key links to ensure safety. The TRUNNION BALL VALVE API 6D relief device and the GATE VALVE quick closing design are two common emergency shutdown solutions. This article will compare these two designs from multiple dimensions to help you better choose a suitable emergency shutdown system.<br />
Understanding Butterfly Valves in Water Treatment SystemsStructure and FunctionButterfly valves are quarter-turn valves that use a flat disc mounted on a rotating stem to control the flow of fluids. The disc rotates to open or close the valve, and it remains in the flow path even when the valve is f
Understanding Trunnion-Mounted Ball ValvesStructure and FunctionTrunnion-mounted ball valves are a type of ball valve designed with a fixed ball supported by a trunnion, which enhances stability and reduces operational torque. This design allows for precise control and reliable sealing, making them
In industrial fluid control systems, the choice of valves has a crucial impact on the stability and cost-effectiveness of the system. TRUNNION BALL VALVES (meeting the MSS SP-72 standard) and traditional GATE VALVES are two common types of valves, and there are significant differences between them in terms of maintenance cycle, service life, and overall cost optimization.
Gate Valves: Casting Process and AdvantagesStructure and FunctionGate valves are linear motion valves that use a gate or wedge to control the flow of fluids. They are designed to provide a tight seal and are commonly used in applications requiring full flow and minimal pressure drop. The structure o
In the field of low-temperature engineering, the selection of valves is of crucial importance as it directly relates to the safety and efficiency of the system. The BS 6364 standard provides clear specifications for the design, manufacturing, and testing of low-temperature valves. This article will
API 6D: Pipeline Valves StandardOverviewAPI 6D, titled "Specification for Pipeline and Pipeline-Related Valves," is specifically designed for valves used in petroleum and natural gas pipeline systems. It provides detailed requirements for the design, construction, testing, and marking of pipeline va
In industrial application scenarios with high temperature and high pressure, the selection of valves is of crucial importance. As two common types of valves, trunnion ball valves and gate valves have significant differences in their pressure ratings under the ASME B16.34 standard.
<br /> In water treatment systems, the selection of valves is of crucial importance. It not only affects the operating efficiency of the system but also directly relates to the system's reliability and service life. Trunnion ball valves (compliant with AWWA C509 standard) and gate valves (compliant with AWWA C515 standard) are two common types of valves, each with its own advantages and disadvantages and suitable for different application scenarios.
Design Standards for DBB Ball ValvesAPI 6DAPI 6D is a widely recognized standard for pipeline valves, particularly those used in the oil and gas industry. It covers various types of valves, including ball valves, and provides detailed requirements for design, materials, testing, and marking. Key asp
In the procurement of industrial valves, it is crucial to ensure the quality and performance of valves. The API 598 standard provides clear guidance for the inspection and testing of valves, helping purchasers make informed decisions when choosing TRUNNION BALL VALVES, GATE VALVES and BUTTERFLY VALVES. This article will compare in detail the API 598 testing costs and acceptance procedures of these three types of valves to help you better understand and choose suitable valve products.<br />
Understanding Ball Valves and Butterfly ValvesBall ValvesBall valves are quarter-turn valves that use a spherical ball to control the flow of fluids. The ball has a hole through the middle, and when the valve is open, the hole aligns with the pipeline, allowing fluid to pass through. When the valve
Overview of API 6D and ISO 15848 StandardsAPI 6D StandardAPI 6D, titled "Specification for Pipeline and Pipeline-Related Valves," is a widely recognized standard developed by the American Petroleum Institute. It provides comprehensive guidelines for the design, manufacturing, testing, and certificat
In industries such as petroleum, natural gas, and chemical engineering, the API 6D standard is an important basis for the design, manufacturing, and testing of pipeline valves. This standard covers multiple types of valves, including trunnion ball valves, gate valves, and butterfly valves, etc., and is widely used in long-distance transmission pipelines, oil and gas field development, and industrial pipeline systems. This article will conduct an in-depth analysis of the design specifications for trunnion ball valves and gate valves under the API 6D standard, compare their structural characteristics, performance requirements, and application scenarios, and also explore the applicable scenarios of butterfly valves.
In the field of industrial valves, zero leakage technology has always been the goal pursued, especially when dealing with hazardous media or working conditions with high requirements. Metal sealing of trunnion ball valves and soft sealing of gate valves are two common sealing methods, and there are
