China Twin Ball DBB Trunnion-Mounted Ball Valve with Worm Gear - Reliable Suppliers & Factory Solutions

1 / 1

China Twin Ball DBB Trunnion-Mounted Ball Valve with Worm Gear - Reliable Suppliers & Factory Solutions

â— Leak-Free Safety: Our Twin Ball DBB valve features a full-seal design that effectively prevents leaks, ensuring optimal safety and minimizing downtime in operations. This innovative solution is ideal for businesses looking for reliable China suppliers for high-quality valves.

â— Effortless Operation: The worm gear mechanism significantly reduces torque, allowing for easy single-person control, even when handling large high-pressure valves. This makes it a perfect choice for factories seeking efficient operational solutions.

â— High-Pressure Durability: Crafted with a heavy-duty body and robust trunnion support, our valve is designed to withstand Class 1500 pressures and endure media impacts, making it a reliable option for demanding industrial applications.

â— Versatile Functionality: The independent twin balls in our valve provide dual isolation and emergency shut-off capabilities, effectively replacing the need for multiple valves. This versatility saves space and enhances operational efficiency in manufacturing settings.

â— Long Service Life: Built with premium materials and precision sealing, our valves can extend service life by over 30%, significantly reducing maintenance and replacement costs for factories and industries that value durability.

Send Inquiry

Product Description

Key Features

Twin Ball DBB Design

Dual trunnion-mounted balls with central bleed provide double block-and-bleed isolation, safe pressure release, and leakage monitoring for high-risk media.

Enhanced Safety Features

Engineered with fire-safe, anti-static, and anti-blowout stem design, ensuring reliable operation under high-pressure and hazardous conditions.

Heavy-Duty Body & Support

Forged steel body with robust trunnion support handles high-pressure, high-flow applications, delivering long-term durability and stable performance.

Versatile Control & Easy Operation

Twin balls can be operated independently or synchronously, supporting dual-line flow, merging, or emergency shut-off, while worm-gear drive reduces torque for easier manual control.

Frequently Asked Questions

What is a Twin Ball DBB (Double Block and Bleed) valve?

A Twin Ball DBB valve features two trunnion-mounted balls with a central bleed cavity between them. It provides double isolation by blocking flow from both upstream and downstream simultaneously, while the central bleed port allows safe pressure release and leakage monitoring.

What safety features are included in this design?

The valve is engineered with a fire-safe design (API 607 / API 6FA), anti-static protection to prevent ignition, and an anti-blowout stem to ensure security under extreme pressure.

What materials are used for the valve body?

The valve body is constructed from high-quality forged steel, providing superior strength and resistance to high-pressure and high-temperature conditions in demanding industrial environments.

Can the balls be operated independently?

Yes, the twin balls can be operated independently or synchronously. This provides flexibility for dual-line flow control, flow merging, or emergency shut-off functions.

What are the benefits of the worm-gear drive?

The worm-gear drive mechanism significantly reduces the operating torque required, making manual control easier and more efficient, especially in large-diameter or high-pressure applications.

Which industries typically use this valve?

It is widely used in oil and gas pipelines, petrochemical plants, refineries, and LNG facilities where safe isolation and reliable shut-off of hazardous media are critical.

Product Detail

China Twin Ball DBB Trunnion-Mounted Ball Valve with Worm Gear - Reliable Suppliers & Factory Solutions

Product Description