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2. Flashback arrestor - Wikipedia

   en.wikipedia.org/wiki/Flashback_arrestor

   In many countries or regions they are mandatory to be installed at the gas regulator or gas outlet/ tapping point. Depending on the application they are also often used at the torch side as an additional safety device. Flashback arrestors help prevent: Further gas flow in the case of pressure shocks.

3. Gas cylinder - Wikipedia

   en.wikipedia.org/wiki/Gas_cylinder

   The regulator is adjusted to control the downstream pressure, which will limit the maximum flow of gas out of the cylinder at the pressure shown by the downstream gauge. For some purposes, such as shielding gas for arc welding, the regulator will also have a flowmeter on the downstream side.

4. Pressure regulator - Wikipedia

   en.wikipedia.org/wiki/Pressure_regulator

   Regulators are used for gases and liquids, and can be an integral device with a pressure setting, a restrictor and a sensor all in the one body, or consist of a separate pressure sensor, controller and flow valve. Two types are found: The pressure reduction regulator and the back-pressure regulator.

5. Earthquake valve - Wikipedia

   en.wikipedia.org/wiki/Earthquake_Valve

   These are applicable both to utility-supplied natural gas and to gas from liquefied petroleum gas (LPG). These small devices are installed on the property gas meter (usually between the utility company's metered installation and the structure piping) and are designed to instantly stop the natural gas supply in order to protect the structure if ...

6. Liquefied petroleum gas - Wikipedia

   en.wikipedia.org/wiki/Liquefied_petroleum_gas

   LPG is composed mainly of propane and butane, while natural gas is composed of the lighter methane and ethane. LPG, vaporised and at atmospheric pressure, has a higher calorific value (46 MJ/m 3 equivalent to 12.8 kWh/m 3) than natural gas (methane) (38 MJ/m 3 equivalent to 10.6 kWh/m 3), which means that LPG cannot simply be substituted for ...

7. Autogas - Wikipedia

   en.wikipedia.org/wiki/Autogas

   Autogas is sold at most fuel stations, stations in urban areas may not supply it due to safety regulations with regard to LPG storage tanks. The 'Dutch Bayonet' is the standard filling device used. The road tax on autogas vehicles can be up to 2 times that of petrol powered vehicles.