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The difference between closed flash point tester and open flash point tester

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The difference between closed flash point tester and open flash point tester
Latest company news about The difference between closed flash point tester and open flash point tester

     As we all know, the flash point is the low temperature at which a flammable liquid or solid can give off sufficient vapor to form a flammable mixture with air at the surface of the liquid or solid in the container used. When the concentration of the mixture of oil surface steam and air increases, the low temperature that can form continuous combustion (duration not less than 5 seconds) when encountering an open flame is called the ignition point.

 

Closed flash point tester

 

   So, what is the difference between a closed flash point tester and an open flash point tester?

What's the matter with the opening flash point? Open flash point tester is mainly used for lubricating oil and heavy petroleum products. When the open flash point is measured, the vapor formed by the heating of the petroleum product continuously diffuses to the surrounding air, which makes the measured flash point high. For most lubricating oils and heavy oils, especially when used in non-hermetic parts or under low temperature conditions, even if there is a certain amount of light admixture, it will evaporate during use and will not pose a fire hazard. , so these products are measured with an open flash point tester.

   Also, in some lubricating oil specifications, there are two quality indicators, open and closed. Its purpose is to use the difference between the open and closed flash points to check the width of the lubricating oil fraction and the presence or absence of light components. Some lubricating oils are used in airtight containers. During use, high temperatures are often generated due to various reasons (such as high speed or other reasons causing equipment overheating, current interruption, arcing, etc.), so that the lubricating oil may form decomposition products, or from other components Infused with lightweight ingredients. Therefore, a closed-mouth flash point tester is required.

Pub Time : 2022-10-18 15:06:18 >> News list
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