Worm gear fixed ball valve
The Worm Gear Fixed Ball Valve utilizes a trunnion-mounted ball structure and worm gear operation for effortless opening and closing under high-pressure conditions. Designed for demanding industrial applications, it offers bubble-tight sealing, reduced operating torque, exceptional durability, and long service life in oil, gas, chemical, and power industries.
Worm gear fixed ball valve
The Worm Gear Fixed Ball Valve is a quarter-turn valve designed with a trunnion-mounted ball and worm gear operator for large-diameter and high-pressure applications. The fixed ball structure minimizes seat wear and significantly reduces operating torque, making it ideal for heavy-duty service.
Manufactured from premium carbon steel, stainless steel, duplex steel, and special alloys, the valve provides superior sealing performance, corrosion resistance, and operational reliability. Its robust design ensures safe operation in critical process systems handling liquids, gases, steam, and aggressive media.
Our Worm Gear Fixed Ball Valves are manufactured and tested according to international standards:
Worm gear fixed ball valve
| Parameter | Specification |
|---|---|
| Product Name | Worm Gear Fixed Ball Valve |
| Valve Type | Trunnion Mounted Ball Valve |
| Nominal Size | DN50 – DN1400 |
| Pressure Rating | PN16 – PN420 |
| ANSI Class | Class 150 – Class 2500 |
| Body Material | WCB, CF8, CF8M, Duplex, Alloy Steel |
| Ball Material | SS304, SS316, Chrome-Plated Ball |
| Seat Material | PTFE, RPTFE, PEEK, Metal Seat |
| Connection Type | Flanged, BW, RTJ |
| Operation | Worm Gear Operated |
| Temperature Range | -196°C to +550°C |
| Leakage Standard | API 598 / ISO 5208 |
| Design Standard | API 6D, API 608, ASME B16.34 |
| Applicable Media | Water, Oil, Gas, Steam, Chemicals |
Worm gear fixed ball valve
Provides reliable shutoff and isolation for transmission pipelines, compressor stations, and storage terminals.
Handles hydrocarbons, chemicals, solvents, and aggressive process media.
Used in steam systems, cooling water networks, and auxiliary process lines.
Ensures dependable flow control in municipal and industrial water systems.
Available with cryogenic designs for liquefied gas transportation and storage facilities.
Suitable for abrasive fluids, slurry transport, and large-scale industrial process systems.
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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