Buried all welded ball valve ball valve
The Buried All Welded Ball Valve is specially designed for underground pipeline systems, featuring a fully welded valve body structure, excellent sealing performance, and long-term operational reliability. The valve eliminates the risk of external leakage caused by bolted connections and provides superior corrosion resistance, making it ideal for buried installation applications.
With a compact design, low maintenance requirements, and high safety performance, this valve is widely used in natural gas, oil, water supply, heating, and industrial pipeline systems. The fully welded body ensures high mechanical strength and extended service life under harsh underground conditions.
Our company provides comprehensive OEM and customization services, including valve size, pressure rating, connection type, material selection, coating treatment, actuator configuration, and special design requirements. We are equipped with advanced manufacturing technology and strict quality control systems, and our products comply with international valve industry standards and certifications.
Buried all welded ball valve
We offer professional OEM/ODM solutions to meet different project requirements:
Our valves are manufactured under strict quality management systems and comply with major international standards, including:
Each valve undergoes strict testing procedures, including pressure testing, sealing testing, material inspection, dimensional inspection, and functional testing to ensure reliable performance and safety.
Parameter Specifications
| Parameter | Specification |
|---|---|
| Product Name | Buried All Welded Ball Valve |
| Valve Type | Fully Welded Floating / Trunnion Mounted Ball Valve |
| Application | Underground Pipeline System |
| Nominal Size | DN15 – DN1200 (Customized Available) |
| Pressure Rating | Class 150 – Class 2500 / PN16 – PN420 |
| Valve Body Design | Fully Welded Forged or Fabricated Steel Body |
| Connection Type | Butt Weld, Flanged, Customized Connection |
| Body Material | Carbon Steel, Stainless Steel, Alloy Steel |
| Ball Material | Stainless Steel / Customized Materials |
| Seat Material | PTFE, RPTFE, PEEK, Metal Seat (Optional) |
| Stem Design | Anti-Blowout Stem Design |
| Sealing Structure | Double Block and Bleed / Double Piston Effect (Optional) |
| Operation Type | Manual Gearbox / Pneumatic / Electric / Hydraulic Actuator |
| Installation Type | Direct Buried Installation |
| Corrosion Protection | Fusion Bonded Epoxy (FBE), 3PE Coating, Customized Anti-Corrosion Coating |
| Working Temperature | -46°C to +200°C (Depending on Materials) |
| Medium | Natural Gas, Oil, Water, Steam, Chemical Fluids |
| Leakage Standard | API 598 / ISO 5208 / EN 12266 |
| Design Standard | API 6D / ASME B16.34 / EN Standards |
| Fire Safe Design | API 607 / API 6FA (Optional) |
| Inspection Standard | API 6D, ISO 9001 Quality Control System |
| Maintenance Requirement | Maintenance-Free Long Service Design |
| Service Life | 30+ Years (Depending on Operating Conditions) |
Industry Applications
The Buried All Welded Ball Valve is widely used in critical pipeline infrastructure where high reliability, safety, and long service life are required.
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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