Botou Tongyong Bellows Manufacturing Co. Ltd

    Material and classification Our company specializes in producing  various specifications of ventilation butterfly valves  in carbon steel, manganese steel, stainless steel and heat-resistant steel. Ventilation butterfly valves are divided into manual, electric and pneumatic actuators. The actuator can be driven by electric motor or turbine to make the disc rotate freely within 90° for the purpose of opening and closing or regulating the flow of medium.   Features 1. Small operating torque, easy to operate, labor-saving and intelligent. 2. Novel design, reasonable, unique structure, light weight, quick opening and closing. 3. No connecting rod, bolt, etc., reliable operation and long service life. Can be installed in multiple workstations. 4. Select suitable materials to meet the low, medium and dielectric temperature and corrosive media. 5. Designed and manufactured with new structure form of welded centerline butterfly plate and short structure steel plate, compact structure, ligh

Ventilation tools of different periods are related to the development of scientific and technological productivity. When modern industry began to put the main force of ventilation on ventilation butterfly valve, it can be found that   ventilation butterfly valve is really a good tool . Just as we find the law from different types and styles of ventilation butterfly valves, we can also find the practical application form of the whole ventilation butterfly valve from the process of ventilation. When the manual ventilation butterfly valve is in the fully open position, the thickness of the manual ventilation butterfly plate is the only resistance of the medium flowing through the valve body, so the pressure drop generated by the valve is very small and therefore has good flow control characteristics. Butterfly valves have resilient seal and metal seal. With resilient seal valves, the seal can be embedded in the valve body or attached to the butterfly plate.   Material and classification O

The curved pipe pressure balanced corrugated compensator is suitable for bends or space pipelines connected with equipment. It compensates axial displacement and lateral displacement. It is commonly used in load-sensitive piping systems, such as pumps, compressors and turbines. It is suitable for petrochemical, steel, electric power, non-ferrous metals and other sectors. The curved pipe pressure balance corrugated compensator can be installed correctly to achieve the use effect.   Precautions for the installation and use of the bent pipe pressure balance corrugated compensator   ●Curved pipe pressure balanced corrugated compensator (expansion joint) is generally applied to straight pipelines overhead and installed horizontally. ●All small ties must be removed after the installation of curved pipe pressure balanced corrugated compensator (expansion joint). ●In order to reduce the elastic reaction force of the bellows expansion joint on the support, it should be communicated with the man