CNG


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We have three basic configurations for natural gas fueling stations, let us help you decide which is right for you:

Quick Fill: Similar to using a regular gas pump, cng compressor fills a cascade; and gas is transferred to a vehicle via dispenser.

Time Fill: When you refill a fleet of vehicles at a central location simultaneously – a compressor fills all the vehicles via hose pole.

Time fill hose assembles come in single, dual or 4 hose versions and are normally not metered.

Combination: As its name implies, this system blends both quick and time fill layouts. The appropriate fueling method is determined by fleet and customer needs. While facility size and design may vary, the same basic features are usually incorporated into each layout.

Compressor recommendations for natural gas fueling

Charger series compressors offer a compact, vertical design, water cooled unit designed specifically for small and medium sized natural gas fueling stations.

For higher volume needs, the horizontal, two throw, balance opposed Century series or the single throw, inline Slimline series are recommended. The Slimline compressor is balanced-opposed and water cooled, and available in both electric motor and engine drive configurations.

Charger Series Compressor Flow Rates

Suction Pressure (PSIG)
300
200
150
50
40
30
15
5
Charger Series
NQ-SV2-300
NQ-SV2-200
NQ-SV2-150
NQ-SV3-50
NQ-SV3-40
NQ-SV3-30
NQ-SV3-15
NQ-SV4
Flow Capacity (SCFM)
135
100
100
75
65
60
50
30

Century Series Compressor Flow Rates

Suction Pressure (PSIG)
150
150
150
50
15
15
15
15
8
Century Series
C150-2
C75-2
C75-2C
C75-3C
C150-3
C75-3
C75-3
C75-3C
C150-4
Flow Capacity (SCFM)
450
300
180
125
250
200
150
100
300

Other components of natural gas fueling station

Storage cascades are used to store gas at a higher pressure. Cascades are available as either DOT bottles or ASME vessels, depending upon what storage capacity is needed. Cascades can also be connected together to increase storage.

The priority/emergency shutdown (ESD) panel redirects gas from the compressor to the appropriate fueling “station” and isolates storage cascades should an emergency occur.

Gas dryers are used to remove water vapor from the gas to meet local “dew point” conditions.


ngv

Norwalk Compressor Company
1650 Stratford Avenue
Stratford, CT 06615

Tel: 203.386.1234
Fax: 203.386.1300
Toll Free (US): 800.556.5001

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