Date:2026-05-30 Views:10
The first batch of gas-hydraulic interlocking fully welded ball valves for the Central Asia natural gas project were delivered.
Lianggu Valve continues to expand its global energy engineering market.
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.
Engineering Design for Long-Distance Transmission
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.
Actuation and Control System Integration
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.
Manufacturing and Batch Delivery Capability
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.
Experience in Global Energy Projects
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.
Global Cooperation Invitation
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.
