damper 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.

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.

The butterfly damper valve with chainwheel operation can be selected according to customer needs. The applicable temperature depends on the material selection of valve body. It is generally suitable for ventilation and medium flow regulation in industrial, metallurgical, environmental protection and other pipelines. The chainwheel can be used for operation at a distance from the 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.

It has the characteristics of light weight, small flow resistance, simple structure and flexible start-up

We have advantages in producing big size guillotine damper valve we can desinged as customer's requirment and have more than 15years production experience ths size from 8"-240" Slide Gate Valves can be processed into round or square type Internal leakage rate ≤1% External leakage rate 0 for slide gate valve

The valve is welded with high-quality wear-resistant materials. It has good wear resistance, stable and reliable operation, convenient operation, sensitive action, small leakage rate, long service life, convenient installation and maintenance. It is especially suitable for low pressure difference, large diameter and large flow occasions. It is combined with various actuators to form valves with different performance

1.The ventilation butterfly valve is made of steel plate welding, which has the characteristics of short structure size, light weight and convenient installation. 2.The valve has small driving torque, flexible opening and closing, and convenient operation. 3.There is no visible gap between the sealing pairs and the leakage rate is small. 4.The expansion gap between disc and 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 device, pneumatic device, electric device.

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