A flange sight glass is a device installed on industrial equipment or pipelines to observe the flow or reaction of internal media.
1. Structural composition: mainly composed of mirror glass, mirror base, sealing gasket, clamping ring, bolts and nuts, etc. Some flange mirrors also come with connecting pipes, glass tube fixing flanges, etc. For lighting applications, there are also flange mirrors with lighting devices.
2. Technical parameters: Common shell materials include carbon steel, stainless steel, etc; The window material is generally tempered glass, quartz glass, etc; Sealing materials include nitrile rubber, polytetrafluoroethylene, etc; The working pressure is usually PN0.6-5.0MPa; The working temperature generally ranges from 0 ℃ to 800 ℃ depending on the material.
3. Type characteristics: Neck flange sight glass is a special type of flange sight glass, which adds a tubular neck at the bottom of the mirror, separates the sealing surface from the welding interface, reduces the influence of welding stress on sealing performance, and is suitable for corrosive media and low-temperature environments.
4. Application areas: Widely used in industrial production equipment such as petroleum, chemical, pharmaceutical, and food industries, it can be used to observe the flow and reaction of liquids, gases, vapors, and other media inside reaction tanks, fermentation tanks, pipelines, etc., to ensure production safety.
5. Installation and maintenance: During installation, the welded flange must be clean and undamaged, the mirror seat should be flat and smooth, the sealing gasket should be installed flat and undamaged, and the bolts should be tightened diagonally. During maintenance, keep the window glass clean and dust-free to avoid glass breakage caused by excessive temperature difference or pressure.
