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Structural Ball Valves are designed for demanding industrial applications where high pressure, high temperature, and corrosive environments are common. These valves offer reliable flow control and exceptional structural integrity, making them ideal for industries such as oil and gas, chemical processing, petrochemicals, and energy. With a focus on long-lasting performance, they are engineered to handle extreme conditions while maintaining precise flow regulation.
Naishi's certified welders, with years of experience, follow strict international standards like ASME and ISO to ensure weld quality and structural strength. We offer various welding methods, including manual welding, submerged arc welding (SAW), plasma welding, and fully automated welding. Torque wrenches are used during the central bolt assembly to ensure even force distribution and precise valve body alignment.
With a robust structural design, these ball valves provide superior sealing, minimizing leakage and offering enhanced durability. Their easy maintenance and reliability help reduce downtime and ensure continuous, safe operation. Available in a wide range of sizes and materials, Structural Ball Valves can be customized to meet specific operational needs, offering a cost-effective solution for industries that demand both strength and precision.
Ball Valve Production Expert
At Zhejiang Naishi Valve Co., Ltd., we provide advanced valve solutions designed to meet the demanding needs of various industries. Among our offerings are the Structural Ball Valve and the Double Block & Bleed Valve (DBBV)—both critical components for ensuring safe and efficient fluid flow control in a wide range of industrial applications. While these valves share the same core purpose of fluid management, they differ greatly in design, safety features, and ideal use cases. This article explores the distinct characteristics of each valve type, along with their specific applications in the industry.
A Structural Ball Valve is a versatile and reliable valve used primarily for controlling the flow of fluids in pipelines. This valve features a spherical ball with a central hole, which rotates to either allow or stop the flow of fluid. The structural design of this valve type is often simpler, with fewer components, making it cost-effective and easy to maintain.
In contrast to the simple design of the Structural Ball Valve, a Double Block & Bleed Valve (DBBV) is a more specialized valve built for high-risk environments. The DBBV is equipped with two independent seals that provide double isolation between upstream and downstream flow, along with a bleed valve that vents any trapped fluid between these seals. This design ensures the highest level of safety by preventing leaks and allowing for safe depressurization of the pipeline.
Structural Ball Valves are suitable for general flow control applications where simplicity and reliability are key. These valves are widely used in:
Due to their enhanced safety features, DBBVs are ideal for applications that involve high-pressure fluids or hazardous substances. Some of the most common industries and applications for DBBVs include:
At Zhejiang Naishi Valve Co., Ltd., we employ a variety of advanced welding techniques to ensure the highest quality and performance in our valves:
During the assembly process, we use torque wrenches to ensure even force distribution and precise alignment of valve components, further enhancing the reliability and longevity of our valves.
