DBB Double Ball Valve
Product Introduction
The DBB Double Ball Valve is a high-performance valve integrating dual isolation and intermediate bleed functions. It features a dual-sphere design, with each sphere independently controlling a fluid path. When the valve is closed, both sealing pairs maintain a sealed state simultaneously, creating dual isolation to effectively prevent media leakage. Additionally, a bleed port is provided between the two sealing surfaces to drain media or pressure from the intermediate chamber, ensuring operational safety. It is widely used in high-risk industries such as petroleum, natural gas, chemicals, and power.
Product Features
Dual Seal Mechanism
DBB Double Ball Valve, an advanced four port valve, features independent high-performance sealing rings on each ball. When closed, these dual seals act as a double guarantee, forming an unbreakable barrier to effectively prevent fluid leakage, maintaining zero leakage even under working pressures up to 1000 psi, far exceeding industry standards, ensuring absolute safety for the four port valve system.
Intelligent Drainage System
DBB Double Ball Valve, this four port valve, incorporates an intelligent drainage technology that utilizes a special channel between the two balls to easily drain residual media or pressure from the middle chamber without dismantling the valve body. This innovative design greatly simplifies valve maintenance procedures and reduces operational risks. The drainage rate is finely tuned to quickly release internal pressure within 30 seconds, ensuring efficient and safe maintenance operations.
Selected Durable Materials
DBB Double Ball Valve, a preferred choice in the four port valve market, is meticulously crafted using top-grade stainless steel and special alloy materials. These materials not only exhibit excellent corrosion resistance, maintaining structural stability in extreme temperatures (-60°C to 450°C) and high-pressure environments, but also significantly enhance valve durability and extend service life due to their superior wear resistance.
Compact and Lightweight Design
Considering the space constraints and installation convenience demands of various four port valve applications, DBB Double Ball Valve adopts a compact and lightweight structural design. This design not only reduces footprint, making the valve easier to install and maintain in confined spaces, but also optimizes fluid channel design to minimize fluid resistance and improve system efficiency.
Diverse Driving Options
To meet the diverse needs of four port valves in different application scenarios, DBB Double Ball Valve offers manual, pneumatic, and electric driving modes. These driving methods are not only easy to operate but also highly flexible and reliable, capable of accurately responding to control signals to achieve rapid valve opening and closing, ensuring stable system operation.
Why Choose Us
Professional Team
Onero Valve Corporation currently operates two production bases, employing a diverse technical staff of 40 individuals and a total workforce exceeding 140 employees.
Fully Equipped
The factory boasts a comprehensive array of equipment, supported by specialized personnel dedicated to processing, batching, assembly, testing, painting, and boxing, all of whom exercise rigorous process control.
Certifications
Onero Valve Corporation has obtained ISO9001, API-6D, ISO14001 environmental management system certification, and ISO18001 Occupational Health and Safety certification.
Sales Market
Our core products are exported to regions such as the United States, Europe, South Korea, and the Middle East, where we maintain close collaborations with numerous companies and have received praise from our customers.
FAQs
Q: What is the purpose of a double ball valve (DBB)?
A: A double ball valve (DBB) is designed to provide complete isolation and drainage of pipeline systems. It ensures that no harmful or pressurized media can pass through, allowing safe maintenance and modifications in various industrial applications.
Q: How does a DBB double ball valve work?
A: The DBB valve works by incorporating two independently operated ball valves with an intermediate bleed valve. When both ball valves are closed, the bleed valve can be opened to safely release any trapped pressure between the two ball valves, ensuring zero leakage and complete isolation.
Q: What materials are commonly used in DBB double ball valves?
A: DBB double ball valves are typically constructed from robust materials such as stainless steel, carbon steel, and various alloys to ensure durability and resistance to corrosion and high temperatures. These materials help maintain valve integrity in harsh environments.
Q: Can a DBB double ball valve handle extreme temperatures?
A: Yes, DBB double ball valves are designed to operate within a wide temperature range. Depending on the materials used, they can function effectively in temperatures ranging from -196°C to 200°C, making them suitable for diverse industrial applications.
Q: Are there different sizes available for DBB double ball valves?
A: Yes, DBB double ball valves come in a variety of sizes to accommodate different pipeline requirements. Common sizes range from 1/2" to 24" (15mm to 600mm), ensuring compatibility with various system configurations.
Q: What are the key safety features of a DBB double ball valve?
A: Key safety features include double block and bleed functionality, anti-blowout stem design, fire-safe design, and emergency seal injection capabilities. These features ensure that the valve can handle high pressures and temperatures while preventing leaks and providing secure isolation.
Q: How do you install a DBB double ball valve correctly?
A: Proper installation involves ensuring that the valve is aligned with the flow direction indicated on the valve body. It's crucial to follow the manufacturer's guidelines for torque settings during flange bolt tightening and to use appropriate gaskets and sealants to prevent leaks.
Q: What maintenance is required for a DBB double ball valve?
A: Routine maintenance includes inspecting seals and gaskets for wear, checking actuator performance, and ensuring that all moving parts are properly lubricated. It's also important to periodically test the valve's operation and address any leaks immediately.
Q: Can a DBB double ball valve be automated?
A: Yes, DBB double ball valves can be equipped with automation options such as electric, pneumatic, or hydraulic actuators. This allows for remote operation and integration into larger control systems, enhancing operational efficiency and safety.
Q: What are the common applications for DBB double ball valves?
A: DBB double ball valves are widely used in industries such as oil and gas, petrochemicals, power generation, and chemical processing. They are particularly suited for applications requiring stringent isolation and safety, such as handling hazardous or pressurized media.
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