Three-Piece Ball Valve
Nominal Diameter: 1/2"~2"
Nominal Pressure: 150~600Lb
Applicable Media: Water, Gas, Oils, etc.
Applicable Temperature: ≤650°C
Three-Piece Ball Valve
The Three-Piece Ball Valve is a robust, versatile valve designed for reliable on/off and throttling applications in pipelines carrying liquids, gases, and steam. Its three-piece body construction allows for easy maintenance, cleaning, and replacement of internal components without disturbing the pipeline, making it ideal for high-purity, high-pressure, and high-temperature systems.
The valve features a full bore or reduced bore design, blow-out proof stem, anti-static function, and excellent sealing performance, ensuring tight shut-off and long service life. It is widely used in oil & gas, petrochemical, chemical, power, pharmaceutical, and food & beverage industries.
Body Materials:
Ball & Stem Materials:
Seat Materials:
Parameter Specifications
| Item | Specification |
|---|---|
| Product Name | Three-Piece Ball Valve |
| Valve Type | Floating / Trunnion Mounted Ball Valve |
| Nominal Size | DN10–DN600 (½"–24") |
| Pressure Rating | PN10–PN420 / ANSI Class 150–2500 |
| Body Material | WCB, WCC, SS304, SS316, CF8, CF8M, Duplex SS, Alloy Steel, Titanium |
| Ball Material | SS304, SS316, SS316L, Stellite-coated alloys |
| Stem Material | SS304, SS316, Alloy Steel |
| Seat Material | PTFE, RTFE, PEEK, Metal Seats |
| End Connections | Threaded, Flanged, Butt Weld, Socket Weld |
| Bore Type | Full Bore / Reduced Bore / V-Port |
| Operation Type | Manual (Lever/Handle), Gear, Electric, Pneumatic |
| Operating Temperature | -196°C to +450°C (depending on seat material) |
| Maximum Working Pressure | Up to 42 MPa |
| Leakage Class | ANSI/FCI 70-2 Class VI |
| Fire-Safe Design | API 607 / API 6FA (Optional) |
| Anti-Static Feature | Yes |
| Design Standard | API 6D, API 608, ASME B16.34 |
| Face-to-Face Standard | ASME B16.10 |
| End Connection Standard | ASME B16.5, ASME B16.25 |
| Inspection & Testing | API 598, EN 12266 |
| Applicable Media | Water, Oil, Gas, Steam, Chemicals, Corrosive Fluids |
Industry Applications
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%.
