The LNG dispenser is mainly composed of frame, flow meter (ExibaaCT1aaT6aa, gas-liquid separator, refueling coupling, gas-return

1Performance parameters of LNG dispenser

1.1Main function and features

The main chassis of the dispenser is made of stainless steel for elegant, novel and brevity appearance surface as well as ease of maintenance.

Explosion proof design for reliable safety.

Human oriented design to reduce the working strength to a great extent.

Emerson cryogenic mass flow-meter adopted for superior meter performance as well as superior repeatability and calibration stability.

LNG refueling coupling and return gas coupling both are genuine imported from USA for air tight seal and long service life.

High brilliance LCD display for clearer character.

Able to preset sum or volume before refueling as well as non-quantitative refueling.

Data protection while power-off.

Able to realize communicating with station-control system.

Able to realize one pump control several dispensers for refueling at the same time by coordinating with station-control system.

1.2Main technical parameters

1.2.1Technical parameters of the complete dispenser

Working medium: liquid natural gas (liquefied natural gas)

Flow-rate range: 0~150L/min

Accuracy: +/-1.0%FS

Working pressure: 1.6MPa

Ambient temperature: -25°C~55°C

Pipeline temperature: -196°C~55°C

Measuring unit: kg

Minimum reading: 0.01kg

Single count range: 0~9999.99kg

Total count range: 0~99999999.99kg

Refuel hose: 1 inch, 4m, stainless steel hose

Gas-return hose:1/2 inch, 4m, stainless steel hose

Refueling coupling: specialized LNG refueling coupling 1 inch, JC CARTER, USA

Quick acting coupling: quick acting coupling of 1/2 inch, Macro-Tech USA

Power supply: AC220V 5A

Overall dimension: 2300*1150*750

Weight: 450kg

Explosion proof degree: ExdeibmbⅡBT4 Gb

1.2.2Technical parameters of flow-rate sensor

Flow-rate

Rated flow-rate range: 0~13600Kg/h

Maximum flow-rate: 27200Kg/h

Accuracy(liquid): 0.10%[(zero point stability/flow-rate)×100]%

Flow-rate accuracy (gas):0.50%[( zero point stability/flow-rate)×100] %

Flow-rate repeatability(liquid):0.05%[(zero point stability/flow-rate)×100]%

Flow-rate repeatability(gas):0.25%[(zero point stability/flow-rate)×100]%

Flow-rate zero point stability/flow-rate: 0.680Kg/h

Density

Accuracy(liquid):          0.0005g/cc

Accuracy(gas):             0.002g/cc

Repeatability(liquid):        0.0002g/cc

Repeatability(gas):           0.001g/cc

Range:              0~5g/cc

Temperature

Accuracy:                        +/-1°C~+/-0.5%°C readings

Repeatability:                   +/-0.2°C

Range:                      -240°C~204°C

Rated pressure

Flowing pipeline rated pressure: 100Ba

External shell rated pressure:   43Bar

Short time external surging pressure:57Bar

Environment influence

Procedure temperature influence:   +/-0.00025% rated flow-rate/°C

Pressure influence(flow-rate):-0.0002% nominal value/Psi

Pressure influence(density):     -0.000006g/cc/Psi

Explosion proof degree: ExibⅡCT1~T6

Material and Weight

Parts contact liquid:         316L

External shell:     304L

Connection box:           Aluminum plated with epoxy resin.

Weight:                       13.2Kg

1.2.3Technical parameters of refueling coupling

Working medium: liquid natural gas (liquefied natural gas), methane, liquid nitrogen

Max. refueling pressure: 1.72MPa

Max. working pressure: 3.45MPa

Max. sustainable pressure: 10.3MPa

Flow-rate: 189.25L/min

Weight of refueling coupling base: 1.82Kg

Weight of refueling coupling: 5.44kg

Medium temperature: -196°C~49°C

Storage temperature: -51°C~49°C

LNG dispenser