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Top 10 Trunnion Mounted Ball Valve Manufacturers in China
2025-07-21
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● 1. Wenzhou Leader Flow Control Equipment Co., Ltd.
● 2. RKSfluid Valve Manufacturer
● 3. Wenzhou Newsway Valve Co., Ltd.
● 4. WOM Group (Worldwide Oilfield Machine, Inc.)
● 5. Wenzhou Ball Valve Companies
● 6. Zhejiang Zhongde Automation Technology Co., Ltd.
● 7. Shanghai Kaigong Valve Co., Ltd.
● 8. Zhejiang XH Valve Co., Ltd.
● 9. Wenzhou Yuhuan Valve Co., Ltd.
● 10. Wenzhou Kisen Valve Co., Ltd.
● Understanding Trunnion Mounted Ball Valves
● FAQ
>> 1. What are the benefits of using trunnion mounted ball valves compared to floating ball valves?
>> 2. Which industries most commonly use trunnion mounted ball valves?
>> 3. Are Chinese trunnion mounted ball valves internationally certified?
>> 4. Can Chinese manufacturers provide customized OEM solutions?
>> 5. What materials are typically used in manufacturing trunnion mounted ball valves in China?
China has long been recognized as a global powerhouse in manufacturing high-quality industrial valves, particularly trunnion mounted ball valves. These valves are essential components in many sectors, such as upstream, midstream, and downstream oil and gas industries, seawater desalination plants, offshore drilling platforms, chemical processing, and power generation. The demand for reliable, long-lasting, and technologically advanced trunnion mounted ball valves has stimulated rapid growth and innovation within China's valve manufacturing sector. This article introduces the Top 10 Trunnion Mounted Ball Valve Manufacturers in China, emphasizing their technological strengths, product ranges, quality certifications, and applications. At the forefront of this list is Wenzhou Leader Flow Control Equipment Co., Ltd., a company renowned for its expertise and high standards in valve manufacturing.
1. Wenzhou Leader Flow Control Equipment Co., Ltd.
Wenzhou Leader Flow Control Equipment Co., Ltd. stands as a model manufacturer specializing in the design, development, and production of premium ball valves. Their product portfolio covers trunnion mounted ball valves, floating ball valves, and top-entry ball valves crafted from carbon steel, stainless steel, and alloy materials. Established over 20 years ago, the company is strategically located in Yueqing, Zhejiang – a region known for its rich industrial heritage in valve technology.
Significantly, Wenzhou Leader's modern manufacturing workshops span over 3000 square meters and house advanced CNC machining centers, automated welding facilities, and sophisticated testing laboratories. This robust infrastructure supports an annual production capacity exceeding 2500 tons of valve equipment, allowing them to meet the demand of both domestic and international clients.
Their trunnion mounted ball valves feature split-body and side-entry designs, conforming rigorously to API 6D standards. The company's in-house testing capabilities include spectrometry, hardness tests, ultrasonic inspections, and pressure testing, ensuring each valve meets stringent quality benchmarks. Furthermore, their products integrate fireproof sealing designs in accordance with API 607 and API 6FA to ensure safety in high-risk environments.
Wenzhou Leader's valves are widely utilized across the oil and gas upstream, midstream, and downstream sectors; offshore drilling platforms; seawater desalination plants; as well as chemical and petrochemical industries. The company also provides comprehensive OEM services tailored to foreign brand owners, wholesalers, and manufacturers seeking customized valve solutions.
2. RKSfluid Valve Manufacturer
RKSfluid is a prominent manufacturer specializing in trunnion mounted ball valves made from carbon steel and stainless steel, with a diverse range of flange and threaded end connections. Their valves support pressure ratings from Class 150 up to Class 600, covering sizes from 1/2 inch to 12 inches. In addition to trunnion models, their product line includes floating and metal-seated ball valves. RKSfluid adheres to multiple international and national standards such as API, DIN, ASME, and GB/T, which enable their products to be deployed widely in oil, gas, and chemical industries. The company holds certifications including CE, API, ISO9001, WRAS, and OHSAS, demonstrating compliance with safety and environmental regulations.
3. Wenzhou Newsway Valve Co., Ltd.
Wenzhou Newsway Valve has built a reputation for manufacturing robust carbon steel and stainless-steel trunnion mounted ball valves that excel in high-pressure and large-diameter pipeline scenarios. Their valves incorporate reduced operating torque and reliable sealing features that enhance operational stability. Alongside manual valves, Newsway offers solutions with pneumatic, hydraulic, and electric actuators to satisfy diversified automation demands. Their products find extensive use in petrochemical plants, power generation stations, and municipal water systems.
4. WOM Group (Worldwide Oilfield Machine, Inc.)
WOM Group is a multinational enterprise addressing the niche of heavy-duty industrial valves designed for petroleum and chemical processes. Their Magnum Dual-Seal trunnion ball valves stand out for exceptional durability, minimal maintenance requirements, and superior sealing under extreme conditions such as high pressure (up to 20,000 psi) and exposure to sour gas (H2S). WOM's valves meet stringent international testing protocols, making them a preferred choice for demanding offshore and onshore installations.
5. Wenzhou Ball Valve Companies
Several other manufacturers in the Wenzhou region provide high-quality API-certified Class 150 trunnion mounted ball valves that feature flange connections and two-piece body designs. These local companies serve a broader base of clients seeking cost-effective yet reliable valves that meet industry standards such as API 6D and ISO 9001.
6. Zhejiang Zhongde Automation Technology Co., Ltd.
This company emphasizes metal-seated ball valves geared primarily toward petrochemical, coal chemical, and downstream oil refining sectors. Their trunnion mounted ball valves are engineered to withstand corrosive media and high pressure with materials and designs complying with stringent industrial requirements. Zhejiang Zhongde also offers automation and control solutions that complement their valve products.
7. Shanghai Kaigong Valve Co., Ltd.
Based in Shanghai, Kaigong Valve offers a comprehensive range of valves including trunnion mounted ball valves with versatile material options and pressure ratings. Their products are used extensively in oil and gas pipelines, chemical manufacturing, and power plants. The company prides itself on strict quality assurance protocols and adherence to multiple certifications covering design, manufacturing, and testing.
8. Zhejiang XH Valve Co., Ltd.
Zhejiang XH Valve specializes in forged steel valves, including forged steel trunnion mounted ball valves. Known for innovation and deep material expertise, the company delivers valves that balance mechanical strength and corrosion resistance, making them ideal for rigorous industrial applications.
9. Wenzhou Yuhuan Valve Co., Ltd.
Wenzhou Yuhuan provides OEM services focusing on top-quality trunnion mounted ball valves for offshore oil and gas projects. Their manufacturing is characterized by custom engineering, comprehensive quality control, and advanced finishing processes designed for harsh marine environments.
10. Wenzhou Kisen Valve Co., Ltd.
Kisen Valve offers a diverse product line that includes API, ISO, and PED-certified trunnion mounted ball valves suitable for high-pressure and cryogenic applications. Their valves are designed using state-of-the-art computational flow dynamics to optimize performance and reduce fluid resistance.
Understanding Trunnion Mounted Ball Valves
The concept of a trunnion mounted ball valve involves anchoring the ball via a trunnion shaft, which absorbs the axial forces and prevents the ball from moving downstream under pressure. This design contrasts with the floating ball valve, where the ball shifts slightly to create a seal. The trunnion system reduces operating torque by transferring the ball's weight and pressure forces away from the seat, enhancing valve longevity, reliability, and ease of actuation. Trunnion mounted ball valves are especially suited for large diameter pipelines and critical high-pressure service, such as natural gas transmission, oil production, and offshore installations.
These valves are known for:
- Stable and tight sealing performance under variable pressure conditions
- Reduced wear on valve seats and extended maintenance intervals
- Capability of handling high pressure and temperature media, including corrosive substances
- Compatibility with manual, electric, pneumatic, and hydraulic actuators for automation
Industry Applications
Oil and Gas: Trunnion mounted ball valves are heavily used within upstream extraction, midstream transportation, and downstream refining sectors. Their robust design meets the demands of high throughput, sour gas environments, and safety requirements.
Offshore Platforms: The harsh offshore environment necessitates valves that can resist corrosion, high pressures, and frequent cycling. Trunnion mounted ball valves with fire-safe features and API certifications are highly favored.
Seawater Desalination: Handling corrosive seawater requires valves made from specialized stainless steels or corrosion-resistant alloys, all available from key Chinese manufacturers.
Chemical and Petrochemical Plants: Aggressive chemicals and high process pressures demand valves that ensure leak-tight service and operational stability.
Power Generation: Utility and power plants rely on these valves in cooling water lines, feed water systems, and fuel handling due to their reliability and flexibility.
Conclusion
China's valve manufacturing industry hosts a rich ecosystem of highly capable trunnion mounted ball valve manufacturers offering a broad spectrum of product options designed to meet the global oil, gas, petrochemical, seawater desalination, and offshore market demands. Leading companies like Wenzhou Leader Flow Control Equipment Co., Ltd. demonstrate technological excellence and rigorous quality control, maintaining their position at the forefront of innovation and customer satisfaction. Choosing Chinese manufacturers ensures cost-effective, high-performance valve solutions backed by international certifications and customizable OEM services. Their consistent adherence to API, ISO, and other industry standards assures global users receive durable, safe, and reliable trunnion mounted ball valves engineered for challenging industrial applications.
FAQ
1. What are the benefits of using trunnion mounted ball valves compared to floating ball valves?
Trunnion mounted ball valves have the ball firmly supported by trunnion shafts, reducing the load on the valve seats and enabling easier operation with lower torque. This design is more suitable for large sizes and high-pressure applications, providing superior sealing stability and longer valve lifespan.
2. Which industries most commonly use trunnion mounted ball valves?
These valves are commonly utilized in upstream, midstream, and downstream oil and gas, petrochemical processing, offshore drilling platforms, seawater desalination plants, power generation, and municipal water treatment.
3. Are Chinese trunnion mounted ball valves internationally certified?
Many prominent Chinese manufacturers produce valves certified under API 6D, ISO 9001, CE, and other recognized standards, ensuring their suitability for demanding global applications.
4. Can Chinese manufacturers provide customized OEM solutions?
Yes, companies such as Wenzhou Leader offer OEM services, providing customized engineering, material selection, and valve design to meet specific customer requirements worldwide.
5. What materials are typically used in manufacturing trunnion mounted ball valves in China?
Common materials include carbon steel grades like WCB and A105, stainless steel variants such as CF8, CF8M, and 316 stainless, and high-alloy options for corrosive and high-temperature service. These materials support compliance with API and ISO standards for performance and durability.