Oil & GasElectro-HydraulicGas-Over-Oil

China-Russia Eastern Gas Pipeline & West-to-East Gas Pipeline Line 4

Project Country：

🇨🇳🇷🇺China & Russia

Project Owner：

PipeChina (National Oil and Gas Pipeline Network Group)

Industry of Application：

Oil & Gas

Product(s) Used：

Electro-Hydraulic ActuatorGas-over-oil （GOA）Electro Hydraulic Actuator

Quantity Used：

China-Russia Eastern Line: Total 657 units provided for various sections.(West-to-East Line 4 (Xinjiang Section): 46 units of Gas-over-oil Actuators and 116 units of Explosion-proof Intelligent Electric Actuators. Maintenance Scope: Responsible for the maintenance of 44 Gas-over-oil units across valve chambers and stations on the Eastern Line.)

China-Russia Eastern Gas Pipeline & West-to-East Gas Pipeline Line 4. Delivered Electro-Hydraulic Actuator using China-Russia Eastern Line: Total 657 units provided for various sections. for PipeChina (National Oil and Gas Pipeline Network Group).

China-Russia Eastern Gas Pipeline & West-to-East Gas Pipeline Line 4 gallery 1

China-Russia Eastern Gas Pipeline & West-to-East Gas Pipeline Line 4 gallery 2

Industry Highlight

Why This Project Matters

Extreme Scale

The China-Russia Eastern Line spans 5,111 km within China, passing through 9 provinces. Line 4 (Turpan-Zhongwei) stretches 1,745 km.

Technical Benchmarking

Utilizes 1,422 mm (Eastern Line) and 1,219 mm (Line 4) ultra-large diameters with X80M high-grade steel and 12 MPa high-pressure ratings.

Extreme Environment

Equipment must operate flawlessly in extreme cold reaching -46°C (Eastern Line) and harsh desert/mountainous terrains.

Localization Milestone

GREATORK serves as a core supplier for the localization of critical high-end actuation equipment for China's national energy pulse.

Our Solutions

Technical Solutions Deployed

Extreme Temperature Resistance

Customized seals and hydraulic fluids enabling stable operation from -46°C to -60°C.

Fail-Safe Reliability

For Line 4, GOA units were deployed at 18 valve stations to ensure emergency shutdown (ESD) capabilities using the pipeline's own gas pressure as the power source.

Smart Integration

Electric actuators feature non-intrusive infrared setting and OLED displays for real-time diagnostics in remote valve chambers.

Full Lifecycle Service

Provided high-level coordination with various project management divisions to ensure perfect delivery and ongoing maintenance across 44+ valve chambers.

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