Overview
The Single Nozzle LNG Dispenser is a dedicated cryogenic fueling unit designed to transfer liquefied natural gas from station storage assets directly into heavy-duty commercial vehicles.
Technical Specifications
|
Item |
Specification |
|
Mass Flow Range |
5 – 80 kg/min continuous |
|
Max Working Pressure |
24.0 bar (2.4 MPa) |
|
Measurement Accuracy |
±1.5% full range |
|
Cryogenic Temperature |
Down to -196°C |
|
Power Supply |
24V DC + 110/220V AC heaters |
|
Display Resolution |
0.01 kg / 2 decimal pricing |
Product Specifications
|
Category |
Specification |
|
Hazardous Area Rating |
ATEX Zone 1 & Zone 2 |
|
MID Compliance |
Class 1.5 (EU Directive 2014/32/EU) |
|
NTEP Compliance |
NIST Handbook 44 aligned |
|
Electrical Safety |
Intrinsic safety barriers (Zener isolation) |
|
Temperature Class |
T4 (<135°C surface limit) |
|
Enclosure Protection |
IP65 stainless steel junction box |
|
Calibration Sealing |
Physical wire seal + digital logs |
|
Documentation Package |
EU DoC + ATEX Type Certificate per unit |
Target Applications & Integration
Commercial Corridor Stations
High-throughput Class 8 truck fueling, eliminating inter-session line boil-off recovery delays during back-to-back operations.
Private Logistics Hubs
High-frequency back-to-base fleet fueling matching scheduled 24-hour regional logistics route turnarounds.
Bunkering Feeders
Inland vessel tender bunkering supporting cryogenic liquid transfer rates up to 100 kg/min.
Mobile Fueling Skids
Structural chassis configurations tailored for standard ISO containerized temporary or trailer-mounted LNG stations.
Industrial Manufacturing Capabilities
Annual Output Capacity: Dedicated assembly infrastructure delivering an established production volume of 350 certified dispenser units per calendar year.
Welding & NDT Standards: Pressure-retaining welds executed by AWS D1.1 and EN ISO 9606-1 certified technicians, verified by 100% radiographic testing (X-ray) on primary cryogenic lines.
Helium Leak Detection: Vacuum mass spectrometer testing on internal piping assemblies down to 1 × 10⁻⁶ mbar·L/s to eliminate fugitive emissions.
Factory Footprint: 12,000 m² facility utilizing ISO Class 7 cleanrooms for cryogenic service cleaning and degreasing, complying with ASTM G93.
Factory Acceptance Testing (FAT)
Pressure & Thermal Shock Testing
Hydrostatic manifold testing at 1.5x MAWP (36.0 bar) and liquid nitrogen pre-cooling (-196°C) to verify structural contraction tolerances under thermal stress.
Electrical & Loop Simulation
Digital validation of transaction cycles, error code triggers, ESD shutdown sequences, and insulation resistance testing.
Calibration Verification
Multi-point flow calibration against gravimetric master reference scales, ensuring compliance with OIML R117 / MID Class 1.5 custody transfer standards.
Traceability Documentation
Comprehensive FAT data package delivery including torque logs, weld maps, NDT reports, and sensor calibration certificates.
Lifecycle Support & Spare Parts
Verified MTBF: 45,000 operational hours Mean Time Between Failures for core control components under standardized operating conditions.
Guaranteed Spare Availability: 10-year OEM spare parts availability backed by regional logistics center stocks.
Dispatched Component Kits: First-Line Maintenance Kits containing replacement seals, filters, and fuses are included in the initial equipment delivery.
Response Windows & Overhauls: Tier-3 engineering remote diagnostics within 24 hours, with primary valve seal replacements scheduled at 24-month or 50,000-cycle intervals.
FAQ
Q: How many LNG stations are currently operating this dispenser in real projects?
A: The dispenser is deployed across more than 40 active LNG fueling sites across Southeast Asia, the Middle East, and Eastern Europe. The largest single-site installation operates at approximately 180,000 fueling cycles over 3 years.
Q: Can the MID and ATEX certificates be independently verified before purchase?
A: Yes, each unit includes a unique MID Class 1.5 conformity reference listed on the EU Declaration of Conformity. The ATEX certificate is registered with the issuing notified body and can be cross-checked in its official certification database.
Q: Is the ±1.5% accuracy valid at low flow rates like 5 kg/min?
A: The accuracy is validated across the full 5 to 80 kg/min range using multi-point gravimetric calibration. At sustained flows below 8 kg/min, measurement variance may slightly increase due to pulsation effects but remains within the certified ±1.5% envelope.
Q: What is the real 10-year maintenance cost of the system?
A: Over a 10-year lifecycle at typical depot usage, maintenance cost averages 35% to 50% of initial equipment value. Major cost drivers include valve seal replacement every 24 months and cryogenic hose replacement around year 5.
Q: How does the dispenser perform in extreme hot desert environments?
A: The system operates reliably between -196°C internal cryogenic conditions and up to +55°C ambient temperature. Field simulations equivalent to 500 thermal cycles confirm structural stability and seal integrity.
Q: What is the service life of hoses and shutoff valves?
A: Cryogenic hoses are rated for approximately 50,000 fueling cycles, equivalent to about 11 years at moderate depot usage. Shutoff valves are designed for up to 100,000 actuation cycles.
Q: Can a single nozzle handle high-throughput depot operations?
A: A single nozzle supports up to about 120–150 fueling cycles per 12-hour shift under standard truck fueling conditions.
Q: What is the actual delivery lead time after ordering?
A: Standard configurations are delivered within 10 to 14 weeks after order confirmation and deposit. Custom skid or interface modifications extend delivery by 4 to 6 additional weeks.
Q: Can buyers witness FAT and third-party inspections?
A: Yes, FAT includes witnessed pressure testing, helium leak detection, and flow calibration checkpoints. Buyers may attend remotely via live video with full data logging. Third-party inspectors such as TÜV or SGS can be present with advance scheduling.
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Parameter Data
|
Parameter |
|
|
Working medium |
LNG(Liquefied natural gas) |
|
Range o flow |
3~80kg/min |
|
Measurin gaccuracy |
±1.0% |
|
Operating pressure |
1.6Mpa |
|
Ambient temperature |
-40℃-+55℃ |
|
Pipeline temperature |
-196℃-+55℃ |
|
AmbientHumidity |
≤95% |
|
Ambient Atmosphere |
86~110Kpa |
|
Unit of measurement |
Kg,L,Nm3 |
|
Minimum indexingvalue |
0.01 |
|
Single counter Range |
0~9999.99 |
|
Totalize counter range |
99999999.99 |
|
Refueling hose |
1 inch stainless steel flexible hose(4m/6m) |
|
Gas phase recovery hose |
1/2 inch stainless steel flexible hose(4m/6m) |
|
Refueling nozzle |
1 inch special use forLNG dispenser |
|
Gas phase pipe joint |
1/2 inch quick joint |
|
Working power supply |
220V±15%50Hz±1HZ |
|
Explosive-proof grade |
IECEX,ATEX,CE |
|
Rated power |
200W |
