Direct heating valve is a common valve used in HVAC applications, which can achieve pipeline interception, regulation, and flow control functions. It is widely used in fields such as HVAC, water supply and drainage, construction, and chemical engineering. This valve is generally composed of components such as valve body, valve core, valve stem, sealing ring, etc., and the materials are mostly brass, stainless steel, plastic, or cast iron. This valve has characteristics such as corrosion resistance, high temperature resistance, and pressure resistance, and has good reliability and safety. Direct heating valves usually have a long handle ball valve structure, which is convenient for manual operation and has high flexibility, and can quickly control the opening and closing status of pipelines. Its caliber size is usually between 15mm and 50mm, which meets the general requirements of heating and air conditioning engineering. This valve can be used as a main shut-off valve or can be intelligently controlled together with other accessories. In terms of application fields, direct heating valves are widely used in the water supply and return pipelines of HVAC systems, and can also be used for flow control of various water, oil, and gas media. In addition, this valve can also be used in fields such as building fire protection systems, water supply and drainage systems, and chemical process control. This product has CE certification.