译文：
阻火器-SFW型管道阻火器是一种安装于管端或靠近管端的管道中，阻火器阻止火焰以垂直传播和扩散的阻火器，广泛运用于加热炉燃料气、天然气、石油液化气的管路上，以及油气回收、气体净化、气体分析、煤矿瓦斯排放等系统，能有效地保证气体管道及气体使用点的安全运行。 工作原理： 　网型阻火器应安装在燃料气或易燃液体蒸气进入喷嘴前的管道上。当喷嘴回火时，阻火器内金属丝网由于阻火器壁效应转化为热能使火焰熄灭，阻止可燃气体和易燃液体蒸气火焰蔓延和防止回火而引起爆炸。

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原文：
Flame arrester-SFW-type pipe flame arrester is installed on the pipe ends or near the pipe end of the pipe, the flame arrester to prevent vertical transmission and spread of flame to the flame arrester, widely used in furnace fuel gas, natural gas, liquefied petroleum gas pipe on the road, as well as oil and gas recovery, gas purification, gas analysis, coal mine gas emissions and other systems, can effectively guarantee that the use of gas pipelines and gas point of safe operation. How it works: Net-type flame arrester should be installed in the fuel gas or flammable liquid vapor into the nozzle before the pipe. When the nozzle temper, the fire retardant wire mesh inside the wall effect due to fire retardant into a hot flame can to prevent flammable gas and flammable liquid vapor flame spread and prevent an explosion caused by tempering.

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