Fully Welded Ball Valve
Fully body-welded ball valve with zero external leakage, designed for buried service and long-distance pipelines.
Inquire NowProduct Overview
The fully welded ball valve is constructed from forged bodies butt-welded to the pipe ends with no bolted joint on the pressure boundary, eliminating external leak paths. The valve is sealed-for-life in many configurations, requiring no maintenance over decades of service.
It's the preferred isolation valve for city gas distribution, district heating, oil transmission, and similar buried or hard-to-access applications.
Key Features
- Zero External Leakage: Welded body eliminates bolted joints on the pressure boundary
- Maintenance-Free: Sealed-for-life design — no field adjustment needed
- Buried Installation: Suitable for direct burial and underwater service
- Fire-Safe Design: API 607 fire-safe certified with metal secondary seat
- Anti-Static & Blow-Out: Static-conductive design with blow-out-proof stem
Technical Highlights
Typical Applications
City gas distribution, district heating, long-distance oil & gas pipelines, buried industrial service, marine.
产品概述
全焊接球阀整体锻件与管道对接焊，承压部位无螺栓连接，彻底消除外漏通道。许多配置下实现终身免维护，适合数十年的可靠运行。
是城市燃气输配、集中供热、油气长输等埋地或难以接触场合的首选切断阀。
核心特点
- 零外漏： 焊接阀体，承压部位无螺栓连接
- 免维护： 终身密封设计，现场免调节
- 埋地安装： 适合直埋和水下应用
- 防火设计： API 607防火认证，带金属二级阀座
- 防静电防吹出： 导电设计，阀杆防吹出
技术参数
典型应用
城市燃气输配、集中供热、油气长输、埋地工业管、船舶。