中亞天然氣項目首批

氣液聯動全焊接球閥交付

良固閥門持續拓展全球能源工程市場

近日，良固閥門集團出口中亞天然氣長輸管線項目的氣液聯動全焊接球閥完成生產并進入分批發運階段。

該批產品用于天然氣干線截斷與站場控制系統，首批口徑覆蓋DN1000–DN1200

(40″-48″)， Class 600壓力等級設計，服務于區域能源輸送主干網絡中的關鍵節點。

該項目所對應的管線系統運行環境復雜，線路需跨越荒漠及戈壁地帶，長期處于高壓輸送與顯著晝夜溫差變化的工況條件下，對閥門的結構穩定性、密封可靠性及長期運行一致性提出了持續性要求。

Recently, the first batch of fully welded ball valves for a Central Asia natural gas transmission project has completed manufacturing and entered staged shipment.

The valves will be used in main gas transmission pipelines and station control systems, covering sizes from DN1000 to DN1200 (40″-48″), designed for Class 600 pressure rating, serving critical nodes of regional energy transmission networks. The project serves a key regional energy transportation network.

The pipeline system operates in harsh environments, crossing desert and plateau regions, with long-distance transmission, high pressure, and large temperature differences between day and night. This places strict requirements on valve structural stability, sealing reliability, and long-term operational consistency.

面向長輸干線的結構設計與工程適配Engineering Design for Long-Distance Transmission

產品的整體式全焊接閥體結構，適用于地下直埋及長周期免維護運行工況。

相較于分體式結構，全焊接設計在長輸管線應用中可減少潛在連接界面，從結構層面提升整體密封連續性與外部環境適應能力，更符合天然氣主干線對長期安全運行的工程要求。

針對高壓輸送系統，閥門在球體加工、閥座密封結構及配合面精度控制方面進行了系統化工藝管理，以保證在Class 600壓力工況下的穩定密封表現與動作一致性。

These fully welded ball valves adopt an integral welded body design, suitable for direct buried pipelines and long-term maintenance-free operation.

Compared with split-body structures, the fully welded design reduces potential leakage paths and improves structural integrity, making it more suitable for natural gas trunk line applications requiring long service life and high safety levels.

For high-pressure service conditions, the valve design includes optimized ball machining, sealing structure, and precision control of mating surfaces to ensure stable sealing performance under Class 600 pressure rating conditions.

執行系統與遠程控制能力集成Actuation and Control System Integration

本批產品配套氣液聯動執行機構，用于長距離管線系統的遠程啟閉與聯鎖控制需求。

該類執行系統通常應用于站場集中控制或無人值守管段，通過氣液驅動方式實現大扭矩輸出與穩定動作控制，滿足天然氣長輸系統在緊急切斷與遠程調度場景下的響應要求。

閥門本體與執行機構在出廠前完成整閥聯調與動作測試，確保機械結構與控制系統在統一工況條件下的匹配性與可靠性。

Each valve is equipped with a pneumatic-hydraulic actuator system, designed for remote operation and interlocking control in long-distance pipeline networks.

This system is widely used in unmanned or centralized control stations, providing high torque output and stable actuation performance for emergency shut-off and remote pipeline management.

Each valve undergoes full assembly testing and actuator calibration before shipment to ensure mechanical and control system compatibility under real operating conditions.

工程制造與批次交付能力Manufacturing and Batch Delivery Capability

在制造環節中，該類大口徑高壓全焊接球閥涉及多道關鍵控制工序，包括：

 · 大型閥體焊接變形控制與焊后應力管理

 · 球體高精度加工與同軸度控制

 · 閥座密封副的壓力適配與耐久驗證

 · 整閥高壓強度試驗與密封測試

 · 執行機構聯動調試與動作一致性驗證

該批訂單按照工程節點組織生產與檢驗流程，并以分批方式完成發運，以匹配項目現場施工節奏與安裝計劃。

The manufacturing process of large-diameter high-pressure fully welded ball valves involves strict control over key procedures, including:

 · Welding deformation control and post-weld stress management

 · High-precision ball machining and concentricity control

 · Seat sealing performance verification under pressure

 · Full pressure and leakage testing of assembled valves

 · Actuator functional testing and stroke calibration

The order is executed in batches according to project milestones to match construction and installation schedules.

面向國際能源工程的系統交付經驗Experience in Global Energy Projects

隨著全球天然氣輸送與能源基礎設施建設持續推進，全焊接球閥在長輸管線、城市供熱及工業能源系統中的應用比例持續提升。

在相關工程項目中，閥門產品通常不僅作為單一設備使用，而是納入整個管線系統的關鍵控制單元，對制造一致性、批量穩定性及工程配套能力均提出較高要求。

依托持續的工程項目實踐，良固閥門集團已參與中亞、非洲及北美等多個海外能源與工業管線項目，在產品制造、系統測試及項目交付配合方面形成持續完善的工程服務能力。

With the continuous development of global energy infrastructure, fully welded ball valves are increasingly used in natural gas transmission, district heating, and industrial pipeline systems.

These applications require not only reliable products but also stable manufacturing capacity and engineering-level delivery support.

LIANGGU VALVE GROUP has participated in multiple energy and pipeline projects across Central Asia, Africa, and North America, continuously improving its capabilities in manufacturing, testing, and project delivery support.

全球合作邀請Global Cooperation Invitation

當前，良固閥門集團正持續推進國際能源工程市場的合作布局。

我們面向全球工程公司、能源項目承包商、管線系統集成商及長期采購合作伙伴，開放項目協同與渠道合作機會。

如果您正在參與天然氣輸送、城市供熱或工業流體控制系統項目，歡迎與我們進一步溝通，共同參與全球能源基礎設施建設。

LIANGGU VALVE GROUP is actively expanding cooperation in international energy engineering markets.

We welcome engineering contractors, pipeline system integrators, distributors, and global partners to explore cooperation opportunities.

If you are involved in gas transmission, district heating, or industrial pipeline projects, feel free to contact us for collaboration.