Views:0 Author:Site Editor Publish Time: 2021-07-24 Origin:Site
CNG valve is a new type of safety equipment for gas storage and using engineering; it is used to cut off, connect and adjust the gas in the pipeline, with good control characteristics and closing and sealing performance; suitable for city gas, liquefied petroleum gas, natural gas, Oxygen, and other fuel gas medium pipelines. CNG valves are mostly made of high-quality forged brass, which can resist high pressure. Industrial gas valves, however, are often used to store the liquefied form of gas fuel, such as the LPG, liquefied petroleum gas, and the LNG, liquefied natural gas. The differences between different kinds of fuels lead to the differences between these valves.
Here is the content list:
l What is a CNG valve?
l What are the differences between CNG valve and industrial gas valve?
CNG valve is a new type of safety equipment for gas pipeline engineering; it is used to cut off, connect and adjust the gas in the pipeline, with good control characteristics and closing and sealing performance. CNG valves are also suitable for city gas, natural gas, Oxygen, and other fuel gas medium pipelines. The CNG valve body is made of high-quality forged brass, which can resist high pressure. The innovative core design reduces the pressure in the internal area, thereby making the CNG valve highly safe.
Compressed natural gas (CNG) is gaseous, while liquefied natural gas (LNG) is liquid and has a larger compression ratio. But the pressure inside the container is higher than that of the LNG. Usually liquefied natural gas is stored in a low-temperature storage tank at -161.5 degrees Celsius and about 0.1 MPa, while CNG refers to gaseous natural gas that is pressurized to a pressure greater than or equal to 10 MPa and not greater than 25 MPa. Therefore the tolerable pressure of the CNG valve is higher than that of the industrial gas valve. Also, industrial gas such as LNG and LPG is suitable for medium and long-distance transportation due to its high cost but large compression ratio, while CNG is suitable for short-distance use, therefore the industrial gas valves are relatively made to be highly durable since the leakage or breakdown of such a valve could lead to a big cost, and the CNG valve is more economical since the short distance use of it means there is a lot of needs of it, and the breakdown of one would not lead to such a big cost like the industrial gas valve could do.
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