LNG Refueling Machine

LNG Refueling Machine Manufacturer for Reliable LNG Dispensing Solutions

We manufacture LNG Refueling Machines designed for safe, accurate, and reliable LNG dispensing in commercial fueling stations, fleet fueling facilities, and energy infrastructure projects.

Our dispensers integrate cryogenic metering, safety control, and flexible system interfaces to help LNG operators achieve efficient fueling performance and reliable long-term operation.

LNG Single Gun Refueling Machine
The LNG Single Gun Refueling Machine is a low-temperature liquid dispensing unit designed for LNG and compatible cryogenic media such as liquid nitrogen. It integrates a cryogenic filling hose,...

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LNG Double Gun Refueling Machine
The LNG Double Gun Refueling Machine is a dual-nozzle dispensing system designed for controlled transfer and metering of LNG and other specified cryogenic media. It supports a flow range of 10–80...

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L-CNG Refueling Machine
The L-CNG Refueling Machine integrates LNG direct filling and LNG-to-CNG compression systems for stations serving both LNG and CNG vehicles. It uses a low-temperature high-pressure LNG pump,...

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LNG Mobile Refueling Machine
Its core function is to provide real-time and on-site refueling services for various LNG vehicles (heavy trucks, buses, construction machinery, etc.), which is an important extension and...

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Technical Specifications

Parameter	Standard Range / Specification
Operating Medium	Liquefied Natural Gas (LNG)
Design Temperature	-196°C to +50°C (-320°F to +122°F)
Flow Rate Range	10 to 200 L/min (Customizable up to 250 L/min)
Design / Max Pressure	1.6 MPa to 3.2 MPa (16 bar to 32 bar)
Metering Accuracy	±0.5% (Coriolis Mass Flow Meter for Custody Transfer)
Explosion-Proof Rating	Ex d e ib IIB/IIC T4 Gb / Class I, Div 1, Group D
Nozzle / Coupling Type	JC Carter / Parker / Macrotech cryogenic breakaway & fueling nozzles
Communication Protocol	Modbus RTU / TCP, Profibus, Ethernet, POS Protocol Support
Operating Voltage	AC 220V/110V (±10%), 50Hz/60Hz

Integrated LNG Refueling Machine Design

Cryogenic Fluid Handling System

The LNG dispenser uses insulated stainless steel piping and cryogenic components to minimize heat transfer, reduce LNG evaporation, and maintain stable fueling performance during operation.

High-Accuracy Metering System

Integrated Coriolis mass flow meters provide accurate LNG measurement with real-time compensation for temperature and density variations, supporting reliable fuel dispensing and transaction management.

Vapor Return & Pressure Balance System

The integrated vapor return line helps balance pressure between the vehicle tank and LNG storage system, improving fueling efficiency and reducing operational instability.

Intelligent Control System

The explosion-proof control system integrates PLC control, touchscreen HMI, data monitoring, and safety interlocks to simplify operation and improve station management.

Applications

LNG Vehicle Fueling Stations
Used in LNG stations for heavy-duty trucks, buses and commercial vehicles requiring fast, accurate and reliable LNG dispensing.

Highway & Logistics Fleet Refueling
Suitable for highway service areas, logistics centers and fleet depots to support long-distance transportation operations.

Mining & Construction Equipment Fueling
Applied for LNG-powered mining trucks, construction machinery and industrial vehicles operating in high-consumption environments.

LNG Satellite Stations
Used in remote areas without pipeline gas infrastructure, providing flexible LNG dispensing solutions for local energy supply.

Marine LNG Fuel Supply
Suitable for ports, terminals and LNG-powered vessels requiring safe and efficient LNG bunkering operations.

Safety Design & Risk Control

Emergency Breakaway Protection

Breakaway couplings automatically shut off LNG flow and seal the connection if abnormal hose separation occurs.

Pressure Relief Protection

Thermal relief valves protect cryogenic piping systems from pressure increase caused by trapped liquid expansion.

Gas Detection & Automatic Shutdown

Methane detection systems monitor abnormal gas accumulation and activate safety shutdown procedures when required.

Grounding & ESD Interlock System

Integrated grounding monitoring and emergency shutdown functions help prevent unsafe fueling conditions.

Compatibility & Integration Capability

Station Management System Integration

Supports connection with customer-defined POS systems, station management platforms, and communication protocols.

Pump & Skid Compatibility

Compatible with different LNG storage systems, cryogenic pump skids, and station configurations.

Customized Control Solutions

PLC systems, HMI interfaces, communication protocols, and operating languages can be customized according to project requirements.

Manufacturing Process

Engineering Review

Confirm project requirements, technical specifications, and system configuration before production.

Material Inspection & Fabrication

Verify stainless steel materials, cryogenic components, and complete precision fabrication of piping and structural parts.

System Assembly & Integration

Install meters, valves, piping, electrical components, and control systems according to engineering drawings.

Testing & Inspection

Perform pressure testing, leak testing, electrical inspection, and functional verification before shipment.

Final Quality Approval

Complete final inspection, documentation preparation, and customer approval procedures.

Quality Control & Testing

Material & Component Inspection
All key components, including cryogenic valves, piping, meters and electrical parts, are inspected to ensure compliance with project specifications and performance requirements.

Fabrication & Assembly Inspection
We perform dimensional checks, welding inspections and assembly verification to ensure accurate installation and reliable system integration.

Pressure & Leak Testing
Each LNG Refueling Machine undergoes pressure testing, leak detection and safety system verification to confirm sealing performance and operational safety.

Functional Performance Testing
Before delivery, the equipment is tested for flow accuracy, control functions, emergency shutdown (ESD) operation and overall system performance.

Engineering & OEM Customization

Customization Item	Options
Flow Capacity	Customized dispensing capacity
Cabinet Design	Standard / Customized enclosure
Metering System	Customer-specified Coriolis meters
Control System	Siemens, Allen-Bradley or specified PLC
Communication	Customized protocols
Climate Adaptation	Cold climate / High temperature solutions
Branding	Private label and appearance customization

Project Delivery Workflow

Requirement Analysis
Review station conditions, fueling demand, pressure requirements, and integration requirements.

Engineering Design
Provide technical drawings, system configuration, and engineering documentation for approval.

Manufacturing & Quality Control

Complete fabrication, assembly, inspection, and testing under controlled manufacturing procedures.

Factory Acceptance Testing (FAT)

Verify equipment performance, safety functions, and operational reliability before shipment.

Delivery & Technical Support

Provide documentation, installation guidance, commissioning support, and after-sales assistance.

Factory Manufacturing Capability

Xinxiang Chengde Energy Technology Equipment Co., operates an equipment industrial park and three manufacturing bases, covering a total area of 160 acres with 69,000 square meters of standardized workshop space.

Our manufacturing facilities are equipped with over 300 production machines, enabling precision fabrication, welding, machining and assembly of large-scale cryogenic skid systems with consistent quality control.

Packaging & Delivery

Seaworthy Export Crating

Heavy-duty, IP66-sealed wooden cases with internal shock absorption for fragile electronic and display components.

Inert Gas Purging

Internal piping is sealed under positive pressure with pure nitrogen gas to prevent internal oxidation and moisture ingress during transport.

Desiccant & Anti-Corrosion Protection

Moisture-absorbing desiccants and VCI corrosion-inhibiting wraps protect delicate electronics and polished surfaces.

FAQ

Q: How do I select the right LNG Refueling Machine for my project?

A: Selection depends on key factors such as required fueling capacity, LNG flow rate, operating pressure, installation environment, vehicle types and local safety requirements. We provide customized solutions based on specific project conditions.

Q: Can you customize LNG Refueling Machines?

A: Yes. We offer customized configurations including dispenser structure, flow capacity, metering systems, communication interfaces, control systems and station integration requirements.

Q: What safety features are included in an LNG Refueling Machine?

A: Our LNG Refueling Machines can be equipped with emergency shutdown (ESD), leak detection, safety valves, grounding protection, temperature monitoring and other safety functions to support reliable LNG dispensing operations.

Q: What testing is performed before shipment?

A: Before delivery, each LNG Refueling Machine undergoes inspection and testing, including pressure testing, leak testing, electrical testing, metering verification and functional performance checks.

Q: Can the LNG Refueling Machine be integrated with an existing LNG station?

A: Yes. The equipment can be integrated with existing LNG storage tanks, cryogenic pumps, piping systems and station control systems according to project requirements.

Q: Do you provide installation and technical support?

A: Yes. We provide technical documentation, installation guidance, commissioning support and after-sales assistance for global LNG projects.

Q: What documents are provided with the LNG Refueling Machine?

A: We can provide equipment specifications, drawings, testing reports, operation manuals, quality documents and other project-related documentation according to customer requirements.

With abundant experience, we are one of the most reliable LNG refueling machine manufacturers and suppliers in China. We warmly welcome you to buy durable LNG refueling machine made in China here from our factory. If you have any enquiry about cooperation, please feel free to email us.