Gas-over-Oil Actuators: Optimizing Performance in Natural Gas Infrastructure

Natural gas infrastructure—spanning cross-country pipelines to remote storage stations—encounters distinctive challenges: restricted power availability in isolated regions, severe weather conditions, and the imperative for around-the-clock, dependable valve control. Traditional electric actuators frequently fall short in these scenarios due to power supply constraints, whereas hydraulic systems necessitate regular fluid upkeep—gaps that Gas-over-Oil Actuators adeptly bridge.

Our CKQY series pneumatic-hydraulic actuators are specifically customized for natural gas applications, boasting key technological advantages: 1) They harness the medium within the pipeline itself (ranging from 1.0 to 12 MPa) as the power source, obviating the necessity for external power supplies or hydraulic stations. 2) These actuators are designed with compactness in mind (being 30% lighter than comparable hydraulic actuators) and are equipped with a corrosion-resistant aluminum alloy casing and stainless steel valve components, rendering them suitable for operation in environments spanning from -46°C to +70°C, thus making them exceptionally well-suited for cold northern pipeline segments. 3) They are integrated with ESD and LBP functions, enabling emergency valve shutdown in the event of specific contingencies.

This actuator has demonstrated its worth in practical applications. During the expansion of China’s West-East Gas Pipeline Network, more than 50 CKQY Series actuators were deployed in the remote sections of Gansu and Xinjiang. Over a two-year operational period, they achieved a remarkable 99.8% uptime rate, with maintenance required only once every 12 months (significantly less frequent than the six-month interval for electric actuators). They excel in controlling on-off valves in natural gas transmission pipelines and regulating pressure in storage stations, ensuring a stable gas supply while reducing operational costs by 25%.

For natural gas operators in search of reliable, cost-efficient, and environmentally adaptable valve control solutions, the CKQY Series Gas-over-Oil Actuator is more than just a product—it represents a long-term solution that resonates with the industry’s quest for efficiency and stability.