Working Principle and Features of BVQ47Y-16C DN15 Insulated V-Type Ball Valve BVQ47Y-16C DN15 insulated V-type ball valve is a valve product that combines ball valve and jacketed insulation technology. Its working principle is as follows. A metal jacket is welded between the flanges at both ends of the ball valve. The jacket connection ports are located on the side and bottom of the ball valve for medium inlet and outlet. Heat transfer medium circulates through the jacket, allowing cooling or heating of the process medium, thereby achieving temperature control and insulation effect. This design ensures normal flow of viscous media and prevents media solidification and crystallization. The wafer-type insulated V-type ball valve has the following features. Integral jacketed structure design, providing uniform heat preservation and cold retention. Compact size, light weight, no external leakage, and good sealing performance. The jacket is welded with carbon steel pipe, making it more pressure-resistant and sturdy. The bore matches the pipe diameter, allowing straight-line media flow with low resistance, effectively reducing heat loss of the medium in the pipeline. In addition, BVQ47Y-16C DN15 insulated V-type ball valve conforms to various standards. Design and manufacturing standards include GB/T12237 and ASME B 16.34. Face-to-face length standards include GB/T 12221-2005 and ASME B 16.10. Connection flange standards include JB/T 79, GB/T 9113, and ASME B 16.5. Pressure-temperature rating standard is GB/T 12224-2005. Test and inspection standards include GB/T 13927-2008, JB/T9092, and API 598. The valve features simple structure, compact size, and light weight, consisting of only a few components. It is easy to operate, requiring only a 90° rotation for quick opening and closing, and offers excellent fluid control characteristics. The insulated V-type ball valve is widely used in pipeline systems in chemical, petroleum, pharmaceutical, metallurgical, and other industries, particularly suitable for conveying media that solidify or crystallize at normal temperatures. It can be used for regulating and shutting off gas in sulfuric acid industry gas pipelines, and is also applicable in the sulfur burning, conversion, and drying and absorption sections of sulfur-burning sulfuric acid production systems. In chemical, petrochemical, smelting, pharmaceutical, food, and other industries, it serves as a regulating and shut-off device for controlling pipelines carrying SO2, steam, air, gas, ammonia gas, CO2 gas, oil products, water, brine, caustic soda, seawater, nitric acid, hydrochloric acid, sulfuric acid, phosphoric acid, and other media. In summary, BVQ47Y-16C DN15 insulated V-type ball valve offers excellent insulation performance and temperature control capability, improving pipeline system energy efficiency, reducing energy waste, and lowering enterprise operating costs. Its features include wear resistance, good sealing performance, light switching operation, and long service life. During installation and operation, attention should be paid to media flow and temperature. The flow of heat transfer medium through the jacket should not be shut off, as this may cause the valve temperature to become too high or too low.