How does the LPG/CNG switch work?

CNG Pipe must be a process from high pressure to low pressure, and then the terminal is pressurized or depressurized for storage or use. From high pressure to low pressure, the gas volume expands and needs to absorb heat. Therefore, generally, the natural gas pipeline has low temperature, and frost will form where the pressure difference is too large. At 20MPa, the unit volume of compressed natural gas can hold 200 times that under standard conditions. For liquefaction, a unit volume of liquefied natural gas can hold 625 times that under standard conditions.
Natural gas: It is a natural combustion gas in the natural world. It is extracted from a gas well and extracted into a gaseous state. The gaseous state can be transported through pipelines or transformed into liquid (LNG) after a cooling process or transformed into compressed natural gas (CNG) through a compression process. Uses are generally used as fuel and chemical raw materials.
The natural gas valve opens vertically upwards and closes horizontally. As shown in the figure below, the natural gas valve is closed. You can also see the switch instructions on the valve handle.
Gas valves are widely used in gas, liquefied petroleum gas, natural gas, oxygen and other gas medium pipelines in the urban gas supply network system; the driving forms include manual, worm gear, electric, pneumatic, hydraulic, electro-hydraulic linkage and other actuators. Can realize remote control and automatic operation.
LPG CNG Switch process: Compressed natural gas, CNG, refers to the natural gas, liquefied natural gas, and LNG that are added to the car by the compressor to reduce the other pressure to 20 MPa, which is low temperature until the natural gas is liquefied , Become liquid, liquefied petroleum gas.https://www.lnautogas.com/product/cng-lpg-pipe/