Scraper mirrorIt is a new type of flat mirror, also known as scraper mirrorBrushed mirrorSuitable for industrial containers such as petroleum, chemical, food, etc., it is used to observe and monitor the working reaction of the medium inside the container, ensuring production safety and product quality. When the conventional flange mirror is used on some highly viscous media, the glass lens will stick to the medium, affecting the clarity of observation and directly affecting the quality of the product. Originally, only the mirror could be disassembled and the glass lens cleaned, but this premise requires the container to stop working first, which is very time-consuming and also affects the production progress. The advantage of using a brush mirror is that it does not have to stop working. When the mirror has dirt on it, simply rotate the handle on the brush mirror to remove the dirt, greatly saving cleaning time, labor hours, and greatly improving production efficiency.

1、 Application fields of scraper 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.

2、 Scraper mirrormatters needing attention:

1. For the safety of transportation with brush mirrors, the scraper assembly is debugged on the lens and then disassembled and packaged separately for shipment. After welding the flange, the user should first assemble the scraper assembly and then install the lens;

2. Cleaning treatment. Before use, gently wipe the surface with an appropriate amount of alcohol cotton. Be careful not to use acidic liquids for cleaning to avoid corroding the outer surface of the glass and the scraper;
3. Choose the gasket correctly. In situations where the ambient working temperature is within 280 degrees Celsius, use asbestos pads or PTFE pads. When the ambient working temperature exceeds 500 ℃, it is recommended to choose graphite pads. Note that the thicker the glass, the thicker the selected gasket thickness should also increase accordingly;
4. Apply force evenly. Do not apply too much force or force during installation. It is recommended to tighten the screws evenly and diagonally;
5. Regular inspections. After the installation of the mirror glass, regular inspections must be carried out, especially in liquid environments containing acid and alkali. It is even more important to regularly check the degree of corrosion on the glass surface to ensure safety.

3、 Comprehensive parameters of scraper 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);
6Flange standard: HG20592-97、GB、SH、HGI、JB、ANSI、JIS；
7Manufacturing and testing standards: HGJ501-502-86、HG/T21575-94、HGS07；
8Working temperature: Carbon steel: -30 ℃~+350 ℃, Stainless steel:- 80℃ ~ +480℃；

4、 Maintenance and upkeep of scraper mirror:
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.