butterfly valve

one way check butterfly damper valve is used for the ventilation duct of flue gas and other gases. Its main function is to prevent the backflow of the medium. The function of the check valve is to allow the medium to flow in only one direction and prevent the flow in the opposite direction. Usually, this valve works automatically. Under the action of fluid pressure flowing in one direction, the valve disc opens; When the fluid flows in the opposite direction, the fluid pressure and the self weight of the valve disc act on the valve seat, so as to cut off the flow.

1. Steel hydraulic actuator butterfly valve mainly composed of valve, hydraulic station, quick closing actuator, PLC intelligent electric control box and special stroke feedback device; 2. Precision-machined rack and pinion hydraulic actuator, compact structure, stable operation, safe and reliable; 3. PLC intelligent electric control system, with high degree of automation, can control the system remotely and locally; 4. Using international famous brand automation components, the product performance is superior and the quality is reliable; 5. The power source for the normal opening and closing of the valve is generally provided by the supporting hydraulic pump station, and can also be derived from the main turbine hydraulic station; 6. The system power supply is 380V, and the control power supply is AC220V, DC220V, DC110V and other power levels; 7. The valve adopts three-eccentric multi-layer metal hard-sealed butterfly valve, high temperature resistance, flexible opening and closing, easy, and reliable sealing.

The valve body with lined plate and seat. The High temperature Refractory Lined Damper Valvehas high strength, wear resistance and corrosion resistance. The High temperature Refractory Lined Damper Valve can be designed and manufactured into a round shape according to the needs of users, so as to meet the needs of flue with different cross-section shapes. The flue baffle is equipped with manual actuator (when the diameter is not more than 900mm, it is equipped with hand wheel mechanism), pointer and 0 ~ 90 indicator board to indicate the opening degree of valve plate. The High temperature Refractory Lined Damper Valve can withstand high temperature of 1100 ℃ without jamming and collapse During use, the influence of thermal expansion and cold contraction of the valve will cause the stem and packing to lock, and the valve plate and valve seat to lock. Or too much residual leads to excessive leakage rate of medium. Before processing, Jinbin valve will select the appropriate material according to the temperature, and calculate the expansion amount according to the material and thickness. Under the condition of ensuring low leakage rate, the valve will not be stuck. In the process of use, high temperature through the stem heat conduction to the top of the stem, destroy the actuator circuit or seal ring, resulting in valve necrosis. Jinbin valve will lengthen the stem, increase heat sink, reduce the damage of high temperature to the valve

1. The design is novel, reasonable, unique in structure, light in weight and quick in opening and closing. 2. Small torque, convenient operation, labor saving and dexterous. 3. Adopt suitable materials to meet the requirements of low, medium and high medium temperature and corrosive medium.

High Temperature Electric Damper Butterfly Valve is characterized by high temperature resistance, high pressure range and large nominal diameter. The valve body is made of stainless steel, and the sealing ring of valve plate adopts metal ring instead of rubber ring. High Temperature Electric Damper Butterfly Valve is made of steel plate welding, which is mainly used for flue gas duct and gas pipeline with high temperature medium.

High Temperature Hot Air Metallurgy Damper Butterfly Valve has the characteristics of high temperature resistance, high pressure range and large nominal diameter. The valve body is made of stainless steel, and the sealing ring of valve plate adopts metal ring instead of rubber ring. Large high temperature butterfly valve is made of steel plate welding, which is mainly used for flue gas duct and gas pipeline with high temperature medium

1. The structure dimension is short, the weight is light, and the installation is convenient 2. Small driving torque, flexible opening and closing, convenient operation 3. There is no visible gap between the sealing pairs and the leakage rate is small 4. The expansion gap between butterfly disc and valve body is large, which can effectively prevent the jamming caused by heat expansion and cold contraction 5.The valve can be equipped with a variety of driving devices, such as manual device, worm gear transmission device, pneumatic device, electric device. Ventilation butterfly valve is widely used in metallurgy, petrochemical, electric power, building materials, mining and other industrial pipelines

The structure of the Ventilation Damper Butterfly Valve is welded by using the center line butterfly disc and short structure steel plate, so there are no connecting rod, bolt and other components in its internal part, so there will be no component problems in the use process, so the failure rate is very low. It's very convenient to use. It is a reliable ventilation butterfly valve device. And because its sealing system is metal sealing, so the service life is longer than elastic seal, and has the characteristics of high temperature resistance. So it is widely used in building materials, electric power, metallurgy and other industries. In the temperature can be higher than 300 degrees in the medium pipeline, can be perfectly connected and closed regulation. Ventilation butterfly valve can also be customized according to the needs of customers.

The hard sealing butterfly valve used triple eccentric structure, this design has the function of closing and tightening when closed. The triple eccentric butterfly valve disc can bear pressure in both directions, with excellent sealing performance and zero leakage. After opening, the sealing surface is completely out of contact and protects the sealing surface from damage. The body valve seat ring is surfacing by stainless steel, which reduces the direct contact of the valve seat with the medium, reducing the degree of erosion of the valve seat and extending the service life of the valve seat.