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Founded in 2010 and headquartered in Anfeng Industrial Zone, Yongjia, Zhejiang, SUNAY has three manufacturing subsidiaries with a registered capital of 10.8 million RMB. Our products—including API 6D pipeline ball valves, gate, globe, check, plug valves, and API 609 butterfly valves- offer complete fluid control solutions for petrochemical, LNG, nuclear, marine, aerospace, and other industries.
Comprehensive Product Range
We offer 6 major valve types with 1,000+ specifications, including patented high-temperature, high-pressure, and particle-resistant valves.
Advanced Technology
Equipped with CAD design, 3D simulation, and professional testing platforms for continuous product optimization.
Strict Quality Management
International-standard production, ERP and SAP systems, and precision casting ensure reliable, standardized manufacturing.
Certified and Trusted
Holds ISO9001, ISO14001, ISO45001, CE, and AAA credit certifications; supplier to major national and international enterprises.
Ball valves are quarter-turn valves used for fast, reliable shutoff in pipelines, offering tight sealing, low pressure drop, and long service life in oil & gas, chemical, water treatment, and industrial applications.
Floating Ball Valve
The ball is supported by valve seats and compressed by fluid pressure to achieve sealing, making it a cost-effective solution for low- to medium-pressure applications.
Trunnion Ball Valve
The ball is mechanically supported by trunnions, reducing operating torque and ensuring stable sealing performance for high-pressure, large-diameter pipelines.
Fast Operation
Quarter-turn (90°) rotation enables quick opening and closing.
Tight Self-Sealing
Media pressure pushes the ball against the seat, creating a more reliable seal with minimal leakage.
Low Pressure Drop
Full-bore design allows smooth flow with minimal resistance.
Oil and Gas
Pipeline transportation, refining, and storage systems
Chemical Industry
Handling corrosive and hazardous fluids
Water Treatment
Municipal water supply and wastewater systems
Power Plants
Steam, cooling water, and energy systems
HVAC Systems
Flow control in heating and cooling pipelines
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Option |
Customizable Content |
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Material |
Carbon steel, stainless steel, alloy steel, special alloys |
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Size |
Standard and non-standard sizes |
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Pressure Rating |
Low, medium, and high-pressure applications |
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Sealing Type |
Soft seal, metal seal |
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Connection |
Flanged, threaded, welded |
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Actuation |
Manual, electric, pneumatic, hydraulic |
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Special Design |
Anti-corrosion, high temperature, zero leakage |
As one of the most professional ball valve manufacturers and suppliers in China, we offer a wide range of valves with superior quality. Please feel free to wholesale high quality ball valve at competitive price from our factory. We also accept customized orders.
API 6D Double Block And Bleed Ball Val(0/10)
