Top 10 DBB Ball Valve Manufacturers in China

China has become a global leader in manufacturing high-quality ball valves, especially Double Block and Bleed (DBB) ball valves, widely used in critical industries including oil and gas, offshore drilling, seawater desalination, and petrochemicals. Among numerous manufacturers, some stand out based on their innovation, quality control, and ability to provide customized OEM solutions to international clients. This article presents the Top 10 DBB Ball Valve Manufacturers in China, starting with Wenzhou Leader Flow Control Equipment Co., Ltd., which leads the sector with unmatched expertise and product variety.

1. Wenzhou Leader Flow Control Equipment Co., Ltd.

Wenzhou Leader Flow Control Equipment Co., Ltd. is widely recognized as a premier manufacturer specializing in the design, development, and production of DBB ball valves with over two decades of experience. Located in the industrial hub of Yueqing, Zhejiang province, the company covers 3000 square meters of modern factory space with an annual output of more than 2500 tons of valves. Their product lines include floating ball valves, trunnion-mounted (ear-axis) ball valves, and top-entry ball valves, all engineered to withstand the demanding conditions of upstream, midstream, and downstream oil and gas pipelines, offshore drilling rigs, and seawater desalination plants.

Wenzhou Leader emphasizes innovation in seal ring technology, providing floating ball valve designs with flexible sealing structures that improve operational reliability and leakage prevention. They also incorporate sophisticated safety features such as anti-static devices to prevent static electricity buildup and stringent fireproofing measures compliant with international standards like API 607 and BS 6755.

The company's valves feature stem shoulder designs that securely prevent blowout under pressure, adding a vital safety safeguard for operators working in hazardous environments. Their material testing lab is well-equipped with spectrometers, ultrasonic flaw detectors, and hardness testers, ensuring every valve component meets exacting specifications before assembly.

Besides robust product quality, Wenzhou Leader is highly dedicated to customer-oriented OEM services, collaborating with foreign brands, wholesalers, and industrial manufacturers to tailor DBB ball valves that meet diverse specifications, certifications, and performance requirements.

2. RKSfluid Valve Co., Ltd.

RKSfluid Valve Co., Ltd. has built a reputation for top-tier two-piece ball valves made from stainless steel and carbon steel. Their products range from ANSI 150 to 600 lbs pressure ratings and conform to internationally accepted standards such as API 6D, ASME, and ISO. RKSfluid's DBB ball valves are widely used in pipeline transportation, refinery systems, power generation plants, and the chemical sector due to their robust sealing, ease of maintenance, and durability.

RKSfluid has cultivated comprehensive production capabilities, including floating, trunnion ball valves, metal-seated ball valves, and forged steel options. They focus on customization and quick delivery, addressing the needs of multinational companies and industrial players requiring reliable and efficient flow control solutions.

3. Wenzhou Newsway Valve Co., Ltd.

Wenzhou Newsway Valve Co., Ltd. specializes in versatile ball valve designs, including full-port, reduced-port, and V-notch configurations. Their engineering expertise extends to integration with pneumatic, hydraulic, electric, and manual actuators, making their valves adaptable for automated process control. Newsway's DBB ball valves are engineered for fluid systems involving water, natural gas, oil, and corrosive chemicals, serving industries like petrochemical processing, municipal water treatment, and offshore production.

Newsway Valve emphasizes energy efficiency and flow optimization through advanced internal designs that minimize pressure loss and turbulence, contributing to better system longevity and operational cost savings.

4. Wenzhou ShenHao Valve Co., Ltd.

Wenzhou ShenHao Valve Co., Ltd. offers a focused portfolio of DBB ball valves designed to meet strict industrial safety protocols. With a configuration featuring two isolation valves and a central bleed valve, their products guarantee effective pipeline isolation and bleeding of trapped fluids, preventing contamination or hazardous leaks during maintenance.

Their DBB ball valves are particularly favored in the oil and gas industry, where safety and environmental protection are priorities. ShenHao Valve integrates durable materials and high-precision machining to ensure long-term valve performance, minimizing downtime and leakage risks.

5. Zhejiang Zhongde Zikong Technology Co., Ltd.

Zhejiang Zhongde Zikong Technology Co., Ltd. primarily manufactures metal ball valves for industrial process control in oil downstream, chemical, and coal chemical plants. Their DBB ball valve offerings meet rigorous quality standards with careful material selection and optimized design parameters to enhance valve life and sealing reliability.

Located in Huzhou, Zhejiang, Zhongde Zikong benefits from strategic logistic capabilities to serve major industrial zones efficiently. Their customer-centric approach allows adaptation of DBB valve specifications to comply with various international certifications, making them a competitive supplier in global markets.

6. Women's Worldwide Oilfield Machine (WOM)

Women's Worldwide Oilfield Machine (WOM) integrates global expertise with their headquarters in Houston, USA, and manufacturing facilities in China. They bring to market cutting-edge Magnum Dual-Seal technology in their DBB ball valves, which provides two independent sealing points ensuring absolute isolation and safety in critical service conditions.

Their valves are widely applied in upstream oil and gas fields, pipelines, petrochemical plants, and refining units. WOM also emphasizes environmental compliance by designing valves that prevent fugitive emissions while maintaining operational efficiency.

7. Swagelok China

Swagelok is internationally known for precision-engineered fluid system components, including ball and quarter-turn plug valves manufactured in China to meet global quality expectations. Their DBB ball valves often serve high-purity fluid control applications, instrumentation, and industrial automation where leakage prevention and exact flow control are paramount.

Swagelok valves adhere to strict testing regimes and certifications to maintain their reputation for longevity and reliability in the most demanding environments.

8. Shanghai Kaigong Valve Co., Ltd.

Shanghai Kaigong Valve Co., Ltd. boasts extensive experience producing valves for the petroleum, natural gas, power, and chemical sectors, including DBB ball valve variants. The company combines traditional craftsmanship with modern automation technologies to deliver consistent quality and competitive pricing.

Their DBB ball valves are engineered for easy installation, maintenance, and compatibility with existing piping systems. Kaigong's professional technical team supports clients throughout the product lifecycle, including installation guidance and after-sales service.

9. Zhejiang Aixin Valve Co., Ltd.

Zhejiang Aixin Valve Co., Ltd. offers a diverse menu of industrial valves, including DBB ball valves that cater to chemical, petrochemical, and water treatment sectors. Their design philosophy focuses on safety, environmental friendliness, and long service life.

They incorporate advanced sealing materials and fire safety features enabling their valves to operate safely in harsh chemical environments and high-pressure pipeline systems.

10. Linyi Zhenxing Valve Co., Ltd.

Linyi Zhenxing Valve Co., Ltd. is a midsize manufacturer known for cost-effective DBB ball valve solutions tailored to meet the needs of regional industrial customers in petrochemicals, municipal water supply, and energy sectors.

They combine solid engineering know-how with prompt customer service, offering customization capabilities and compliance with national and international standards.

Conclusion

China houses some of the world's most capable DBB ball valve manufacturers, driving forward innovations that serve critical energy, chemical, and water treatment industries globally. At the forefront is Wenzhou Leader Flow Control Equipment Co., Ltd., whose two decades of experience, technological superiority, and rigorous quality assurance make them an excellent partner for OEM collaborations and demanding project requirements.

From large multinational enterprises to regional specialists, these manufacturers offer a rich diversity of DBB ball valves — featuring floating and trunnion-mounted designs, fire-safe structures, anti-static capabilities, and compliance with API, ISO, and ASME standards. Their commitment to low leakage, safe operation, and customer customization reinforces China's status as a strategic global supplier of ball valve technology.

Whether for upstream oil rigs, midstream pipeline systems, or downstream petrochemical plants, Chinese DBB ball valve producers continue to provide dependable, sophisticated flow control solutions that meet the evolving demands of worldwide industries.

FAQ

1. What is a Double Block and Bleed (DBB) ball valve?

A DBB ball valve integrates two isolation valves and a bleed valve in one assembly, enabling the pipeline section to be completely isolated by the two block valves while the bleed valve vents any trapped fluid in between. This design enhances operational safety by preventing cross-contamination during maintenance or testing and ensuring zero leakage.

2. Which industries require DBB ball valves most frequently?

The primary users of DBB ball valves are sectors where safety and containment are critical, such as oil and gas upstream, midstream, and downstream operations, offshore drilling platforms, petrochemical process plants, power generation, and seawater desalination facilities.

3. How does Wenzhou Leader Flow Control Equipment Co., Ltd. ensure product reliability?

Wenzhou Leader implements a comprehensive ISO 9001 quality management system, utilizing advanced equipment like spectrometers, ultrasonic flaw detectors, and hardness testers for raw materials. Their valves undergo stringent performance testing including pressure and leakage tests to guarantee durability and safety under extreme conditions.

4. Are OEM services available for international customers?

Yes, many Chinese DBB ball valve manufacturers, including Wenzhou Leader, provide flexible OEM services. They cater to foreign brand owners, wholesalers, and original equipment manufacturers by modifying designs, materials, certifications, and packaging to meet clients' market-specific needs.

5. What international standards do Chinese DBB ball valves comply with?

Leading Chinese manufacturers build their valves to meet or exceed global standards such as API 6D for pipeline valves, API 607 and API 6FA for fire safety, BS 6755 for pressure testing, ISO 9001 for quality management, and ASME codes. These certifications ensure valves perform safely in critical industrial applications.

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