Analysis and technical parameters of the scope of application of the sight glass lined with fluorine

by:Lianke Valve     2022-09-25
Fluorine-lined sight glass sight cups are used in petroleum, chemical, chemical fiber, medicine, food and other industrial production equipment. They can observe the flow reaction of liquid, gas, steam and other media at any time. It is an indispensable accessory to ensure normal production. Weak corrosive materials in petrochemical production, such as: water, ammonia, oil, hydrocarbons, etc. Corrosive materials in chemical production, such as: caustic soda, concentrated dilute sulfuric acid, carbonic acid, acetic acid, ester acid, etc. Low temperature materials in refrigeration, such as: liquid methane, liquid ammonia, liquid oxygen and various refrigerants. Light industrial food, materials with hygienic requirements in pharmaceutical production, such as: beer, beverages, dairy products, grain pulp, etc. The sight glass with neck is also called pressure vessel sight glass. The difference from conventional equipment is that there is an extra tube at the bottom of the sight glass, which is what we call 'neck'. Its function is to separate the sealing of the sight glass from the welding port. To minimize the effect of welding stress on the sealing surface of the sight glass. The 'neck' with the neck sight glass, also divided into standard and non-standard types and observation channel, the liquid channel port is provided with a pipe connection flange, the observation channel port is provided with a sight glass connection flange, the sight glass connection flange is connected with the gland, and the sight glass glass is fixed on the connection flange and the pressure cover. Between the covers; it is characterized in that: an impeller is provided near the sight glass on the observation channel, and the impeller is composed of an impeller rod and an impeller blade pivotally connected to the impeller rod, and the impeller rod is perpendicular to the liquid channel. The direction of the liquid level is fixed on the casing of the valve body. Technical Parameters Main Body Material A3 304 304L 316 316L FRP Lining Window Material Tempered Borosilicate Glass Quartz Glass Nut Bolts 20# 304 304L 316 316L Sealing Gasket Nitrile Rubber Gasket PTFE Gasket Metal Gasket Graphite Gasket Sealing Surface Raised surface (RF) Flat surface (FF) Concave and convex surface (MFM) Tongue and groove surface (TG) Flange standard HG GB HGJ JB ANSI JIS DIN BS NF Manufacturing inspection standard HGJ501-502-86 Working temperature Carbon steel: -30℃ ~ + 350℃ stainless steel: -80℃ ~ +480℃ glass temperature-resistant tempered borosilicate glass: ≤200℃, quartz glass: 1000℃ glass pressure-resistant tempered borosilicate glass sheet: ≤2.5MPa quartz glass sheet: ≤2.5MPa tempered borosilicate glass Glass cylinder: ≤0.6MPa Quartz glass cylinder: ≤0.6MPa allowable sudden change temperature<60℃ exterior carbon steel: anti-corrosion paint stainless steel: pickling treatment or anti-corrosion paint
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