Eccentric rotary ball valve
The Eccentric Rotary Ball Valve is an advanced rotary control valve designed with an eccentric ball structure, combining excellent flow control capability, tight shut-off performance, and outstanding wear resistance. The eccentric design allows the ball to move away from the seat during opening and closing, significantly reducing friction, operating torque, and seat wear, resulting in extended service life.
Compared with conventional ball valves, the eccentric rotary design provides superior control accuracy, reliable sealing performance, and better resistance to high-pressure drops and abrasive media. It is especially suitable for applications requiring frequent operation, precise regulation, and long-term stable performance.
The valve can be equipped with pneumatic, electric, or hydraulic actuators for automated process control. With various material combinations and customized configurations, the Eccentric Rotary Ball Valve provides an ideal solution for challenging industrial applications involving liquids, gases, steam, and abrasive fluids.
Eccentric rotary ball valve
We provide professional OEM/ODM manufacturing services and customized solutions according to customer specifications and application requirements.
Our Eccentric Rotary Ball Valves are manufactured under strict quality management systems and comply with international valve standards.
Parameter Specifications
| Parameter | Specification |
|---|---|
| Product Name | Eccentric Rotary Ball Valve |
| Valve Type | Eccentric Rotary Control Ball Valve |
| Design Structure | Offset Ball / Eccentric Rotary Design |
| Application | Flow Regulation and Shut-off Control |
| Nominal Size | DN25 – DN1000 (Customized Available) |
| Pressure Rating | Class 150 – Class 1500 / PN16 – PN250 |
| Design Standard | API 6D / ASME B16.34 |
| Connection Type | Flanged / Wafer / Butt Weld |
| Body Material | Carbon Steel, Stainless Steel, Alloy Steel |
| Ball Material | Stainless Steel / Hardened Alloy |
| Stem Material | Stainless Steel |
| Seat Material | PTFE, RPTFE, PEEK, Metal Seat |
| Sealing Type | Soft Seal / Metal-to-Metal Seal |
| Flow Characteristic | Linear / Equal Percentage / Customized |
| Operation Type | Manual / Pneumatic / Electric / Hydraulic |
| Actuator Type | Double Acting / Single Acting |
| Working Temperature | -196°C to +400°C (Depending on Materials) |
| Working Medium | Gas, Liquid, Steam, Slurry, Chemical Fluids |
| Flow Direction | Bidirectional |
| Leakage Standard | API 598 / ISO 5208 / EN 12266 |
| Fire Safe Design | API 607 / API 6FA Optional |
| Anti-Corrosion Treatment | Epoxy Coating / FBE / Customized Coating |
| Pressure Differential Capability | High Pressure Drop Applications |
| Control Accuracy | High Precision Regulation |
| Protection Class | IP65 / IP67 (Actuator Protection) |
| Maintenance Requirement | Low Maintenance Design |
| Service Life | Extended Service Life Under Industrial Conditions |
Industry Applications
The Eccentric Rotary Ball Valve is widely used in industries requiring accurate control, reliable isolation, and excellent durability under demanding operating conditions.
✔ Eccentric design reduces friction and extends seat life
✔ Low operating torque and improved energy efficiency
✔ Excellent throttling and shut-off performance
✔ Suitable for high-pressure drop and abrasive media applications
✔ Reliable sealing performance with minimal leakage
✔ Compatible with automated control systems
✔ Flexible customization for various industrial conditions
Material customization plan
Customized 316L stainless steel valves forGerman chemical enterprises. Resistant tostrong corrosion, suitable for their acidicmedium transportation systems, with aservice life extended to over 8 years.
Structural optimization design
For the Saudi desert project, the valve stemsealing structure was changed to a doublebellows design to address the leakage issuein the high-temperature and dustyenvironment, and it was highly recognizedby the customers.
Interface standard adaptation
Customized API 600 standard valves for acertain company in the United States. Theflange size is fully compatible with ANSIB16.5, ensuring zero error during on-siteinstallation and reducing the constructionperiod by 30%.
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