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FAQs CNG

FAQs

What is CNG?

It is natural gas compressed up to 200 bar pressure used as an automobiles fuel mainly comprising of Methane (80% to 90%) which is in gaseous sate.

Is CNG Safe?

Yes. It’s absolutely safe, CNG is lighter than air so it disperses in air easily also auto ignition temperature is very high as compared to other fuels.

Which Type of vehicles can be converted on CNG?

All the vehicles fitted with spark ignited engines can be converted into CNG by installing specially designed conversion kit.

Can a car fitted with CNG kit run on petrol as well?

Yes Cars fitted with CNG kit ca run on CNG, if your vehicle runs out of CNG simply you have to turn the switch provided during conversion kit to petrol mode.

What will be dimensions & Wight of CNG cylinder?

CNG cylinders are manufactured from a special steel alloy and are seamless in construction. Their compact size allows them to easily fit into a small car. An empty CNG cylinder with a 50 litre-water-carrying capacity weighs 48 kg (approximately), and has a length of 835 mm and a diameter of 316 mm. The 50 litre capacity cylinder is the one most regularly used in CNG kits but cylinders with 45 litre, 55 litre, 60 litre and 65 litre capacity are used as well.

I have LPG kit installed in my car can I use CNG?

No, an LPG vehicle will not run on CNG as the two fuels are different from each other, have differing calorific values and need different air-fuel ratios for combustion. CNG has to be stored at relatively higher pressure as compared to LPG, so the same cylinder cannot be used for both gases. A vehicle will need specific CNG conversion for CNG operation.

Does CNG kit and Cylinder requires frequent servicing?

CNG kit gives years of trouble free operation. It doesn’t require frequent servicing. Just as for all other fuels, it is advised to have routine services. An authorized person should be consulted for service. As per Gas Cylinder Rules, 1981, the cylinder should undergo hydro-stretch testing every 3 years to check pressure tolerance.