Eccentric hemispherical valve
The Eccentric Hemispherical Valve features an offset shaft and hemispherical disc design that minimizes friction during operation. This unique structure provides superior sealing performance, reduced wear, and longer service life. Suitable for abrasive, viscous, fibrous, and particulate media, it ensures reliable flow control in demanding industrial applications.
Eccentric hemispherical valve
The Eccentric Hemispherical Valve is a high-performance rotary control valve specifically designed for severe service conditions involving slurry, wastewater, ash, pulp, and other challenging media. Its eccentric sealing mechanism eliminates seat friction during opening and closing, significantly reducing wear and extending operational life.
Constructed from carbon steel, stainless steel, duplex stainless steel, and wear-resistant alloy materials, the valve combines the advantages of ball valves, butterfly valves, and gate valves. It offers excellent flow characteristics, low torque operation, and dependable shutoff performance even under harsh operating conditions.
Our Eccentric Hemispherical Valves are manufactured and tested according to international standards:
Eccentric hemispherical valve
| Parameter | Specification |
|---|---|
| Product Name | Eccentric Hemispherical Valve |
| Valve Type | Rotary Eccentric Control Valve |
| Nominal Size | DN50 – DN2000 |
| Pressure Rating | PN10 – PN100 |
| ANSI Class | Class 150 – Class 600 |
| Body Material | Carbon Steel, Stainless Steel, Duplex Steel |
| Hemisphere Material | Stainless Steel, Hard Chrome, Alloy Steel |
| Seat Material | PTFE, Reinforced PTFE, Metal Seat |
| Connection Type | Flanged, Welded, Wafer, Lug |
| Operation | Manual, Gear, Pneumatic, Electric, Hydraulic |
| Temperature Range | -29°C to +425°C |
| Leakage Standard | API 598 / ISO 5208 |
| Design Standard | API 6D, ASME B16.34, DIN, GB |
| Applicable Media | Slurry, Ash, Wastewater, Pulp, Water, Chemicals |
Eccentric hemispherical valve
Suitable for slurry transportation, tailings systems, and abrasive mineral processing pipelines.
Used in ash handling systems, desulfurization units, and cooling water networks.
Handles high-solid-content process fluids and abrasive media.
Provides reliable flow isolation in sewage treatment and industrial wastewater facilities.
Ideal for pulp stock, fiber suspension, and paper production process systems.
Suitable for corrosive, viscous, and particle-containing chemical media.
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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