Top 10 API 6D Certified Ball Valve Manufacturers in 2025

The top API 6D certified ball valve manufacturers include the likes of ONERO Valve, Xintai Valve Group, and SGON Valve, among others. These companies meet strict industry standards for pipeline valve design, testing, and performance.

This guide helps you compare the best options for critical projects in oil, gas, and chemical sectors.

Top 10 API Ball Valve Manufacturers Comparison

ManufacturerSpecializationNotable Features
ONERO ValveFloating, trunnion, and fully welded ball valvesEst. 1986, 18,000 sq.m facility
Xintai Valve GroupHigh-pressure API ball valvesEst. 1998, R&D focus
SGON ValveStainless and carbon steel API valves20+ product patents
Vervo ValveFull range of API-certified valvesComprehensive QMS
Newsways ValveIndustrial API valves20+ years experience
FloworkSevere service API valvesExtreme environment solutions
Jonloo MachineHigh & medium pressure API valves20+ years experience
Xhval GroupComprehensive valve product lineEst. 1986
J-ValvesEngineered API valve solutionsEst. 2018, rapid growth
RST ValveHigh-tech valve solutions20+ years experience

1. ONERO Valve

ONERO Valve stands as a premier manufacturer of API 6D certified ball valves with a reputable heritage dating back to 1986.

Our product range includes floating, trunnion-mounted, and fully welded ball valves designed for critical applications in oil and gas, petrochemical, and power generation industries.

With manufacturing facilities spanning over 18,000 square meters, ONERO combines precision engineering with stringent quality control.

Our API ball valves feature advanced sealing technologies, anti-blowout stems, and fire-safe designs for reliable performance in demanding environments.

Key highlights:

  • Manufacturing excellence since 1986
  • 18,000 square meter state-of-the-art facility
  • Comprehensive product range for oil, gas, and petrochemical industries
  • Advanced fire-safe designs for critical applications

2. Xintai Valve Group Co., Ltd.

Founded in 1998, Xintai Valve Group has established itself as a professional valve manufacturer with strong capabilities in R&D, casting, and production.

Their API ball valves are engineered for reliability in critical pipeline applications. They pay special attention to pressure ratings, material selection, and operational performance.

The company maintains advanced production equipment and implements strict quality control processes throughout manufacturing.

Xintai serves diverse industries including oil and gas, chemical processing, power generation, and water management.

Key highlights:

  • Robust R&D capabilities
  • Specialized high-pressure applications expertise
  • Comprehensive casting and production facilities
  • Established in 1998 with rapid growth

3. SGON Valve

SGON Valve specializes in manufacturing high-quality stainless steel and carbon steel API ball valves for demanding industrial applications.

With advanced CNC lathes and automation equipment, they maintain an annual production capacity of 2 million valve sets.

The company holds more than 20 product patents, demonstrating their commitment to innovation and continuous improvement.

Their comprehensive certifications ensure compliance with international quality standards across all their valve products.

Key highlights:

  • 20+ product patents demonstrating innovation
  • Impressive 2 million valve annual production capacity
  • Specialized in corrosion-resistant alloy materials
  • Advanced CNC manufacturing capabilities

4. Zhejiang Vervo Valve Co., Ltd

Vervo Valve has built a strong reputation as a trusted partner for industrial API ball valves serving customers worldwide.

Their extensive certification portfolio includes API 6D, API 6FA, API 6A, and numerous other international standards.

The company has developed sophisticated quality control and management systems to ensure consistent valve reliability.

Customer testimonials consistently highlight Vervo’s commitment to delivering high-quality products and exceptional service.

Key highlgihts

  • Extensive international certification portfolio
  • Sophisticated quality management system
  • Strong customer testimonials and satisfaction
  • Specialized expertise in API applications

5. Newsways Valve Co., Ltd.

With over 20 years of industry experience, Newsways Valve has become a respected industrial valve manufacturer and exporter.

Their 20,000 square meter workshop houses advanced production equipment specifically designed for manufacturing premium API ball valves.

A dedicated inspection team controls quality at every stage from casting to final packaging, ensuring compliance with API standards.

Newsways products have gained recognition both domestically and internationally for their quality and performance.

Key highlights:

  • 20+ years of specialized valve manufacturing experience
  • 20,000 square meter production facility
  • Dedicated quality inspection team
  • Strong international recognition

6. Flowork

Flowork stands out as a dynamic valve manufacturer in the global market for oil and gas, petrochemical, and marine industries.

Their API ball valves are engineered specifically for demanding requirements and severe service environments.

Operating under ISO9001 and API Q1 Quality Management Systems, Flowork maintains rigorous standards throughout their manufacturing process.

Their competitive advantages include market expertise, modern production facilities, and a customer-focused approach.

Key highlights

  • Specialized in extreme environment solutions
  • API Q1 quality management certification
  • Expertise in severe service applications
  • Customer-focused approach to valve solutions

7. Jonloo Machine Manufacturing Co., Ltd

Jonloo has been producing quality valves for more than two decades as a subsidiary of Zhejiang High & Medium Pressure Valve Co.

Their manufacturing facilities feature advanced CNC equipment for precision valve production across multiple product lines.

Jonloo integrates all departments with strict quality assurance procedures to ensure consistent API compliance.

Their API ball valves are widely deployed in refineries, petrochemical plants, and oil and gas applications.

Key highlights:

  • 20+ years as a specialized valve manufacturer
  • Advanced CNC precision manufacturing
  • Integrated quality assurance across all departments
  • Experience across upstream, midstream, and downstream sectors

8. Xhval Group Valve Co., Ltd.

Established in 1986, Xhval Group brings extensive experience to the design and manufacture of API-certified industrial valves.

Their product range covers gate, check, globe, ball, butterfly, and plug valves for diverse industrial applications.

The company maintains an international quality management system with multiple certifications including CE and ISO 9001:2008.

Customer satisfaction drives their business model, with a focus on providing customized services to clients worldwide.

Key highlights:

  • Established industry presence since 1986
  • Comprehensive valve product range
  • International quality certification portfolio
  • Customer-centric business approach

9. J-Valves

Though established relatively recently in 2018, J-Valves has quickly developed a reputation for innovation and quality.

Their rapid growth has led to investments in three specialized factories within just five years.

The company’s Lishui factory holds impressive certifications including API 6D, API 600, API 602, API 607, and SIL3.

J-Valves serves diverse customers including OEMs, distributors, and end-users with reliable technical support.

Key highlights:

  • Rapid growth since establishment in 2018
  • Three specialized manufacturing facilities
  • Impressive certification portfolio including SIL3
  • Innovative approach to valve manufacturing

10. RST Valve

RST Valve represents a high-tech enterprise with over 20 years of experience in industrial valve production.

Their manufacturing process employs advanced equipment including CNC machining centers and sophisticated testing facilities.

Quality control is paramount at RST, with rigorous inspection protocols for raw materials, dimensions, and pressure testing.

The company’s API ball valves meet stringent industry standards while providing competitive value for customers.

Key highlights:

  • 20+ years of specialized valve experience
  • Advanced manufacturing and testing capabilities
  • Comprehensive quality control protocols
  • Competitive value for industrial applications

Conclusion

When evaluating these top manufacturers for your specific API ball valve requirements, consider:

  • Application requirements: Match valve specifications to your particular service conditions
  • Technical support: Assess the manufacturer’s ability to provide engineering assistance
  • Lead times: Verify production capacity and typical delivery schedules
  • After-sales service: Understand warranty terms and availability of spare parts
  • Total cost of ownership: Look beyond initial price to consider long-term reliability

By carefully considering these factors alongside the manufacturer profiles, you can identify the API ball valve supplier best suited to your project needs.

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