Plate frame sight glass (HG5-1369/1370-80), also known as strip sight glass or frame sight glass, is suitable for industrial production equipment such as petroleum, chemical, synthetic fiber, medicine, food, etc. It can observe the flow and reaction of liquids, gases, steam and other media at any time, and is an indispensable accessory to ensure normal production. Our company can customize the size according to customer requirements, and the connection method is generally welding. The main materials include Q235 carbon steel, 0Cr18Ni9 stainless steel, etc.

1、 Performance and characteristics of panel frame mirror:
1. Plate frame sight glass belongs to a type of equipment sight glass, mainly used in pharmaceuticals, food, and some chemical towers with high temperature, strong corrosiveness, easy poisoning, high danger, and easy crystallization, to ensure safe production;
2. There are two types of panel frames: those with necks and those without necks. Among them, those with necks are often used on liquid pipelines such as reflux and cooling water before drainage or receiving tanks to observe the flow of liquids;
3. Plate frame sight glass is a flow reaction device used to observe media such as liquids, gases, and vapors, and its window glass should be kept clean and dust-free;
4. The temperature and pressure resistance of panel frame mirror glass has certain limitations. Temperature resistance: tempered borosilicate glass ≤ 180 ℃, quartz glass ≤ 1000 ℃. Pressure resistance: tempered borosilicate glass sheet ≤ 3.0MPa, quartz glass: ≤ 10.0MPa；
5. The panel frame mirror allows for sudden temperature changes below 60 ℃, and the glass may break due to excessive temperature differences.

2、 Application areas of panel frame mirror:

1Weakly corrosive materials in chemical and petrochemical production, such as water, ammonia, oil products, hydrocarbons, etc;
2Chemical studentStrong corrosive materials in production, such as caustic soda, concentrated and dilute sulfuric acid, carbonic acid, acetic acid, ester acid, etc;
3Low temperature materials in refrigeration,For example: liquid methane, liquid ammonia, liquid oxygen, and various refrigerants;
4Materials with hygiene requirements in light industrial food and pharmaceutical production, such as beer, beverages, dairy products, grain slurry, medical supplies, etc.

3、 Comprehensive parameters of panel frame mirror:
1Main material: A3、304、304L、316、316L、 Fiberglass reinforced plastic, lining;
2Window materials: tempered borosilicate glass, high borosilicate glass, quartz glass;
3Nut bolt: A3、304、304L、316、316L；
4Sealing gaskets: Nitrile rubber gasket, PTFE gasket, high-temperature resistant PTFE gasket, metal gasket, graphite gasket;
5Sealing surface: protruding surface (RF), flat surface (FF) Concave convex surface (MFM), tenon groove surface (TG);
6Connection methods: flange connection, internal thread connection, external thread connection, butt welding connection, clamp connection;
7Flange standard: HG20592-97、GB、SH、HGI、JB、ANSI、JIS；
8Manufacturing and testing standards: HGJ501-502-86、HG/T21575-94、HGS07；
9Working temperature: Carbon steel: -30 ℃~+350 ℃, Stainless steel:- 80℃ ~ +480℃；
10Glass temperature resistance: tempered borosilicate glass: ≤ 280 ℃, high borosilicate glass: ≤ 450 ℃, quartz glass: ≤ 850 ℃, allowable sudden change temperature ＜ 60 ℃;
11Glass pressure resistance: tempered borosilicate glass sheet: ≤ 3.0MPa, quartz glass sheet: ≤ 5.0MPa, glass cylinder: ＜ 0.6MPa ；
12Exterior paint: carbon steel: anti-corrosion paint, stainless steel: acid pickling or polishing treatment.

4、 Maintenance and upkeep:
1Mirrors are flow reaction devices used to observe liquids, gases, vapors, and other media, and their window glass should be kept clean and dust-free;
2Window glass is a piece that is prone to damage. When installing the mirror, be careful and handle it with care. Ensure that the mirror base is flat and smooth, and that the sealing gasket between the lens and the mirror base is installed smoothly. The sealing gasket is not damaged and does not stick to grease. Before tightening the screws, make sure that the mirror base and cover are installed correctly, and then slowly tighten the screws;
3Glass has certain limitations in temperature and pressure resistance. Please strictly follow the instructions in the manual;
4Allowing sudden temperature changes below 60 ℃, glass may break due to excessive temperature differences.

5、 Ordering instructions:
Please specify detailed parameters such as product name, nominal diameter, pressure rating, material, flange standard, etc. when placing an order. The above product parameters are for reference only. Our company can order processing according to user requirements. Please feel free to call or write to us.