What type is suitable for use as a sight glass in equipment where low temperatures cause material to crystallize?
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I would like to ask my colleagues for recommendations regarding sight glasses for equipment on tanks used for materials that crystallize at low temperatures The material will crystallize when the temperature is below 85°C, and the operating pressure is -99 kPa{:3_48:}
It is possible to consider using viewports with heating functions, such as electrically heated or steam-heated viewports, to keep the temperature of the viewport above the crystallization point of the material, thereby preventing crystallization from affecting observation. At the same time, ensure that the material of the view mirror can withstand the operating pressure and the operating environment. .
Thank you for your answer. I’m not sure if there are any physical products or available sources; I searched for relevant information online before but couldn’t find anything suitable.