In closed production processes such as food, pharmaceuticals, and fine chemicals, the reaction kettle, fermentation tank, and ingredient tank operate in a closed state throughout the entire process. Operators cannot intuitively judge the mixing status, reaction degree, and liquid level changes of the materials in the tank. The flange with scraper mirror is an indispensable visual monitoring window on industrial equipment, solving the industry pain points of difficult observation of closed tank bodies and unclear visibility of glass stains.
Traditional ordinary flange sight glasses, when dealing with viscous slurries, crystalline materials, and easily foaming media, after a period of production, the materials will adhere to the inside of the sight glass, and water vapor and dirt will adhere layer by layer, gradually blurring the observation field. To clean stains, it is necessary to stop the machine to release pressure and disassemble the entire set of mirror components. This not only interrupts the production pace, but also increases the safety hazard of seal leakage through repeated disassembly and assembly, resulting in high maintenance costs. The flange mirror with manual scraper structure solves this problem from the root.
The main body of this DN100 specification mirror is forged with S30408 stainless steel, and the flange surface is finely polished, corrosion-resistant and material free, meeting hygiene production standards; Equipped with high-strength borosilicate tempered glass in the middle, it is resistant to high temperature and pressure impact, and can adapt to the alternating high and low temperature working conditions of the equipment. The external stainless steel operating handle is paired with a red anti slip grip, and the interior is equipped with corrosion-resistant PTFE PTFE scraper blades. By gently rotating the handle, the scraper blades can adhere to the inner wall of the glass to complete the wiping operation. The entire cleaning operation can be completed during normal pressurized operation of the equipment, without the need to shut down or open the cover, restoring a clear and transparent observation view at any time.
The sealing structure of the entire product is rigorous and reliable. The flange adopts a clamping bolt compression method, matched with acid and alkali resistant, high temperature resistant sealing gaskets, to ensure that the pressure vessel is fully sealed without leakage. The easily worn-out scraper supports separate replacement, making maintenance simple and economical in the later stage, effectively extending the service life of the entire set of mirrors. At the same time, the product can be flexibly customized according to actual working conditions. The material can be selected from 316L stainless steel, with a diameter covering DN50-DN200. It can also be matched with mirror lights to meet the observation needs of tank bodies in low light environments and adapt to production conditions of different pressures and temperatures.
From fermentation reactions in pharmaceutical preparations, to raw material fermentation in the dairy and brewing industries, to coatings, cosmetics, and environmentally friendly water treatment production lines, the scraper flange sight glass has become a standard accessory for pressure vessels due to its advantages of online cleaning, safety, efficiency, hygiene, and durability. A small glass window, a simple and reliable manual scraping mechanism, and seemingly inconspicuous industrial accessories help production personnel control the production status in real time, avoid abnormal problems in a timely manner, and hold the two checkpoints of product quality and safety production.
Under the development trend of modern intelligent manufacturing, closed and clean production has become the mainstream in the industry. The scraper flange sight glass, with its practical structural design and low-cost solution, achieves efficient online observation. It empowers the automation and visualization production of the chemical and light industry with detailed design, making it a low-key yet crucial core component in industrial equipment.
