PNG: Piped natural gas

What is a domestic PNG connection?

A domestic PNG connection includes conversion of one LPG appliance to PNG, laying of associated galvanized iron (GI) pipeline network, along with necessary fittings, pressure regulator and a meter.
Alternately procuring new PNG appliances & burners in the kitchen with out conversion is also possible.
The cost of domestic PNG connection (2008) is approx Rs 6000/-

Where is PNG stored?

PNG is not stored at one place but is continuously supplied through the pipeline from the source

How PNG is economical than domestic LPG?

PNG works out to be up to 30% cheaper than LPG.14.2 kg. LPG is equivalent to approx. 15.5 units of Natural Gas shown in your meter. Considering the LPG Price of Rs.315/-, you consume Gas costing of Rs. 213/-(in Mumbai), so approx. saving of Rs. 102/- against each LPG cylinder. (Above figures are indicative).(April 2008)

Is PNG safe?

Natural Gas catches fire only when it forms a 5-15% mixture with air whereas LPG catches fire when it forms 2% or above mixture with air. Our supply designs, executions and operations are being done as per International best Practices. Natural gas is lighter than air. Therefore, in case of a leak, it just rises and disperses into thin air given adequate ventilation. But LPG being heavier will settle at the bottom near the floor surface. A large quantity of LPG is stored in liquefied form in a cylinder. With domestic PNG, it is safer since PNG installation inside your premises contains only a limited quantity of natural gas at low pressure i.e. 21 millibar (mbar).

Why odorant is added and its uses?

As Natural gas is odorless Ethyl Mercaptan is added to detect any leakages. For CNG odorant is added in the Mother station and for PNG odorant is added at the source of supply.


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