Shanghai Xinzhuang Instrument Co., Ltd. is a professional manufacturer of low-temperature thermostats under the brand name LNB. Their products are known for being energy-efficient, environmentally friendly, and leading in domestic technology. With years of experience in production, they offer reliable and cost-effective solutions for temperature control applications. The low-temperature thermostat consists of several key components, including a compressor, condenser, evaporator, internal and external fans, a circulating water pump, a stainless steel inner tank, a heating element, and an intelligent temperature control system. The internal working principle involves the refrigeration cycle: the compressor compresses the refrigerant, which then condenses, expands, and evaporates, absorbing heat from the water to lower its temperature. When the set temperature is reached, the control system automatically activates the heating element if the temperature drops below the desired level. The machine supports both internal and external circulation, allowing users to connect it to a reaction kettle or other equipment for continuous and stable temperature control. To use the low-temperature thermostat, ensure that the power supply is 220V AC at 50Hz and that the socket can handle at least 10A. A proper grounding device must be in place for safety. When adding water, make sure the water level is at least 8cm below the top cover, and always use soft water—preferably distilled water—to prevent damage to the heating element. Hard water, such as well or river water, should be avoided. Before turning on the device, set the desired temperature using the control panel, and once the temperature stabilizes, activate the circulation switch to begin normal operation. The design of the low-temperature bath features a metal outer casing with the control panel directly mounted on the water tank. Two condensate pipes are installed for inlet and outlet, and a high-quality imported water pump ensures even temperature distribution throughout the system. This enhances the accuracy of temperature control and uniformity of the water. The unit supports both internal and external circulation. For internal circulation, connect two latex tubes to the inlet and outlet ports. For external circulation, remove the latex tubes and connect the copper pipes directly to the reaction vessel, ensuring correct installation to avoid backflow when starting the system. Important usage precautions include checking that the power supply meets the instrument's requirements and has a proper grounding system. Always fill the cryostat with liquid medium up to about 30mm below the working platform to avoid damaging the heating element when powered on. By focusing on quality, technology, management, and service, Shanghai Xinzhuang continues to deliver reliable and innovative temperature control solutions. We welcome you to explore our products and services for your next project. Visit us at http:// The main material of the igrow student desk and chair is solid wood, the function of the seat, the seat height can be adjusted, the seat depth can also be adjusted, and the length of the table top is 110 to 120 cm. Student desks and chairs with bookshelves, with side tables, table functions can be raised and lowered, movable, and inclined. There are multiple choices of colors. The desktop angle, less than or equal to 50 degrees.
Children's study desks and chairs, plan management, study more effectively, the area of the desk is upgraded, more space is released, parents are also spacious for reading, and learning is more free. The bookshelf can be disassembled, freely movable and combined, different storage methods are not available at different school ages, and large and small objects are good Put it away, so that the storage is not limited.
Multipurpose Child Desk,adjustable toddler table and chairs,height adjustable table and chair,adjustable table and chairs,best desk chair for kids Igrow Technology Co.,LTD , https://www.igrowdesks.com
Our company's product development is based on the concept of health, environmental protection, fashion and simplicity, and aims to create a better quality of home life. With high-quality products, competitive prices and good services, we have won the trust of domestic and foreign customers.
How to choose liquid medium in the cryostat