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Air Components & Systems Ltd
6000 General Commerce Dr
Charlotte, NC 28213
Phone: 888-997-4812
Fax: 704-596-5881
info@cngrefuelingsystems.com

Types of CNG Stations

You have 3 choices, time-fill, fast-fill stations, or a combination of the two.  The main differences between the two types of stations are storage capacity and compressor size.  These determine the amount that CNG is dispensed and the time it takes for it to be delivered.

Each station will have different needs, so it is important to answer a few questions before you decide on a fast-fill or time-fill station:

1.  What types of vehicles will be refueled?  Light duty, route delivery, trash haulers, etc.

2.  How many vehicles will be refueling at this site?

3.  How much gas does each vehicle require?

4.  What time frame do you want the vehicles refueled in?

Time-Fill Station

These stations are generally for fleets that have the ability to refuel overnight.  There could be a larger compressor at this station that fills the vehicles directly, instead of the tank filling the vehicle.  The storage tank is meant for efficiency – to keep the compressor from going on and off, wasting electricity.

Time-fill stations are carefully designed based on the request.  A transit bus company may need a larger compressor that can deliver 8 to 9 gallons per minute, while a trash hauling company may be fine filling trucks at 3 gallons per minute using a smaller compressor.  All these factors are the reason behind the great variance in the cost of installation.

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Fast-Fill

These stations are best for light duty vehicles such as vans and sedans can fill up quickly.  They don’t take up much space and can be set up in dispensers next to gasoline or other fuels.  The fuel in this scenario comes from a local utility line and once it’s compressed, it is ready to for filling.  It takes no more time than filling your car with gasoline, approximately 5 minutes.

The CNG dispenser displays the pressure and temperature going into the tank and then shows how many gasoline gallon equivalents (GGEs) are going into the vehicle.

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