The Dual Pump LNG Cryogenic Pump Skid is a factory-integrated LNG transfer system designed for high-throughput LNG refueling stations. Equipped with two submerged cryogenic pumps, intelligent PLC controls, and insulated piping on a compact skid, it provides continuous LNG supply through automatic duty/standby switching or parallel operation for stations requiring high availability and future expansion.
Technical Specifications
|
Parameter |
Specification |
|
Pump Configuration |
Dual Submerged Cryogenic Pumps |
|
Working Medium |
Liquefied Natural Gas (LNG) |
|
Design Flow Rate |
Up to 720 L/min (Parallel Operation) |
|
Design Pump Head |
220 – 280 m |
|
Operating Temperature |
Approx. -162°C (Design: -196°C) |
|
Operation Modes |
Duty/Standby |
|
Control System |
Automated PLC Control (Siemens / Schneider / Mitsubishi) |
|
Dispenser Capacity |
Supports up to 4 LNG Dispensers |
|
Installation Type |
Factory-Assembled Skid-Mounted Base |
|
Electrical Supply |
Customized (380V / 400V / 415V / 480V, 50/60 Hz) |
Product Features
Continuous Refueling Without Interruption
Two independent submerged pumps allow automatic duty/standby operation. If one pump requires maintenance or encounters a fault, the standby pump starts automatically, helping maintain uninterrupted LNG dispensing.
High Flow Capacity
When station traffic increases, both pumps can operate simultaneously, delivering up to 720 L/min to support multiple LNG dispensers and reduce customer waiting time.
Intelligent Monitoring and Protection
The PLC continuously monitors pressure, temperature, motor current and operating status while providing automatic alarms, fault diagnosis and pump switching to improve operational reliability.
Flexible Station Integration
Connection sizes, electrical configurations and communication protocols can be customized for new LNG stations or retrofit projects without major modifications to existing infrastructure.
Customization Capabilities
|
Item |
Available Options |
|
Pump Brand |
Customer specified or recommended configuration |
|
Power Supply |
380V / 400V / 415V / 480V, 50Hz or 60Hz |
|
Control System |
Siemens, Schneider, Mitsubishi PLC |
|
Communication |
Modbus RTU/TCP, Profibus, Ethernet/IP |
|
Skid Layout |
Left or right piping orientation |
|
Instrumentation |
Pressure, temperature and flow monitoring options |
|
Explosion Protection |
Indoor or outdoor hazardous area configuration |
|
Dispenser Interface |
Compatible with different LNG dispenser layouts |
Applications
- High-volume commercial truck and fleet refueling hubs
- Highway LNG fueling stations with variable traffic peaks
- Mining and heavy-equipment transportation depots
- Public transit and municipal LNG bus stations
- Capacity expansion or redundancy upgrades for existing LNG stations
Manufacturing & Factory Testing
Every skid is fully assembled and tested before shipment to reduce installation risks and ensure reliable field performance.
Hydraulic pressure testing
Pneumatic leak testing
Helium leak detection
Vacuum insulation verification
PLC functional testing
Automatic pump switching simulation
Electrical insulation and grounding tests
Factory Acceptance Test (FAT) before delivery
Our Strength
Manufacturing Scale: 160-acre facility with 69,000 m² production workshops and over 300 precision processing units.
Compliance & Licensing: Holds ASME, CE certifications, and Class A2 pressure vessel manufacturing licenses.
Global Footprint: Equipment installed in 70+ countries with regional service branches in Vietnam and Indonesia.
Packaging & Logistics
The completed skid is securely mounted on a reinforced steel base suitable for lifting and international transportation.
Before shipment, all exposed valves, instruments and piping connections are protected against moisture, dust and corrosion. Electrical cabinets are packed in export-grade wooden cases with anti-vibration protection.
Each shipment includes:
- GA Drawings
- P&ID
- Wiring Diagram
- FAT Report
- Operation Manual
- Maintenance Manual
- Spare Parts List
FAQ
Q: How do I determine whether a single-pump or dual-pump skid is the better choice?
A: A dual-pump skid is generally recommended for stations with high daily fueling demand, multiple dispensers, or applications where continuous operation is critical. It provides backup capability and higher peak flow than a single-pump system.
Q: Can this skid be integrated into an existing LNG refueling station?
A: Yes. The skid can be configured to match existing storage tanks, dispenser connections, piping layouts and control systems, making it suitable for station expansion or equipment replacement projects.
Q: What is the expected service life of the cryogenic pump skid?
A: With proper maintenance and normal operating conditions, the skid structure is designed for long-term industrial service. Wear components such as seals and bearings should be maintained according to the recommended maintenance schedule.
Q: Are spare parts available for long-term operation?
A: Yes. Recommended spare parts packages can be supplied together with the equipment, and replacement components remain available throughout the equipment lifecycle to reduce maintenance downtime.
Q: Is on-site commissioning or technical support available?
A: Yes. Remote commissioning support is available as standard, while on-site installation supervision, commissioning and operator training can also be arranged upon request.
Q: What information should buyers provide before requesting a quotation?
A: Providing the LNG storage tank capacity, number of dispensers, required flow rate, site voltage, operating frequency and project location helps engineers recommend the most suitable skid configuration.
Q: How long is the typical manufacturing lead time?
A: Lead time depends on the project configuration and customization scope. Standard configurations generally require shorter production cycles, while customized projects are confirmed during quotation.
Q: Can the control system be upgraded in the future?
A: Yes. The modular PLC architecture allows future expansion, including additional dispensers, remote monitoring functions and integration with upgraded station management systems.
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