The electric actuator on this product is made of plastic material. It does not contain any toxic ingredients and does not have any taste. If the product you buy has some flavor, you should pay attention to whether this product is qualified. The overall chemical properties of the product are very good. It can be used in our domestic drainage industry and sewage pipe transportation. At the same time, the quality of this model is also recognized by many users.

With the rapid development of industrial technology, more stringent requirements have been put forward for the valve industry, especially for the use of butterfly valves in cryogenic media. In addition to meeting the performance of general valves at room temperature, more importantly, the reliability of valve sealing, flexibility of action and other special requirements for cryogenic valves at low temperature. Because butterfly valves have a series of advantages, such as compact structure, small volume, light weight (40%~50% less fluid resistance than gate valves with the same pressure and diameter), quick opening and closing, they are widely used. However, more than 80% of the valves used in some cryogenic devices in China, such as natural combustion liquefaction equipment, air separation equipment, pressure swing adsorption equipment and other chemical industries, are still stop valves or gate valves, and the number of butterfly valves is very small. The main reason is that the sealing performance of the metal seal butterfly valve of the plug valve is poor under the low temperature condition, as well as the internal and external leakage of the medium caused by other reasons such as unreasonable structure, which seriously affects the safety and normal operation of these low-temperature equipment and cannot meet the requirements of low-temperature equipment.