Widely used in the water industry, water supply and drainage, heating and steam supply, water treatment, petrochemical, papermaking, smelting, food brewing, pharmaceutical and medical equipment, textile printing and dyeing, rubber machinery, organic and inorganic chemicals, chemical preparations and other industries in the pipeline network and equipment.
Stainless steel pneumatic butterfly valve is with the valve citrus rotation of the circular butterfly plate to do opening and closing, in order to realize the activation of the action of the pneumatic valve is mainly used as a cut-off valve, can also be designed to have the function of regulating or segment valve and regulating the disc valve is used more and more in the low-pressure pipeline in large and medium caliber.
The main advantages of stainless steel pneumatic butterfly valve, simple structure, small size and light weight, low cost, pneumatic disc valve the characteristics of the particularly significant, installed in the high-altitude cul-de-sac, through the two-position five-way solenoid valve control is convenient to operate, but also regulate the flow of media. Fluid resistance is small, medium and large caliber pneumatic disc valves are fully open when the effective circulation area is larger, open and close quickly and labor-saving, the disc wrench can be completed by rotating the 90 angle of opening and closing, due to the rotating shaft on both sides of the disc plate hand media force is close to equal and the torque generated by the direction of the opposite direction, and thus open and close the torque is smaller, low pressure can be achieved under good sealing, disc valve sealing materials are butyl rubber, Viton? rubber, edible rubber, lined with PTFE sealing performance. Good, which hard seal disc valve for the soft and hard laminated metal sheet with metal hard seal and elastic seal of the heavy advantages, no matter in the low temperature have excellent sealing performance.
Stainless steel pneumatic butterfly valve structure and working principle of the applicable environmental analysis
Butterfly valve butterfly plate is installed in the direction of the diameter of the pipeline. In the cylindrical channel of the butterfly valve body, the disc-shaped butterfly plate rotates around the axis, the rotation angle of 0 ° ~ 90 °, rotated to 90 °, the valve is branded fully open state.
The butterfly valve is simple in structure, small in size, light in weight, and consists of only a few parts. And only need to rotate 90 ° can quickly open and close, easy to operate, at the same time the electric valve has good fluid control characteristics. When the butterfly valve is in the fully open position, the thickness of the butterfly plate is the only resistance when the medium flows through the valve body, so the pressure drop generated by the valve is very small, so it has good flow control characteristics. Butterfly valve has two types of sealing: elastic seal and metal seal. Elastic seal valve, the seal can be set in the valve body or attached to the butterfly plate periphery.
Valves with metal seals generally have a longer life than those with elastic seals, but it is difficult to achieve complete sealing. Metal seals can adapt to higher operating temperatures, elastic seals have the defect of temperature limitation.
If a butterfly valve is required for use as a flow control, the main thing is to choose the correct size and type of valve. The structural principle of butterfly valve is especially suitable for making large diameter valves. Butterfly valves are not only widely used in general industry such as petroleum, gas, chemical, water treatment, but also used in the cooling water system of thermal power plants.
Stainless steel pneumatic butterfly valve working principle
Stainless steel pneumatic butterfly valve is with the valve citrus rotation of the circular butterfly plate to do opening and closing, in order to realize the activation of the action of the pneumatic valve is mainly for the use of the cut-off valve, can also be designed to have the function of regulating or segment valve and regulating the disc valve is used more and more in the use of the pipeline in low-pressure, large and medium caliber.
The main advantages of disc valves, simple structure, small size and light weight, low cost, pneumatic disc valves, the characteristics are particularly significant, installed in the high altitude cul-de-sac, after the two five-way solenoid valve control operation is convenient, but also to regulate the flow of media. Fluid resistance is small, medium and large caliber pneumatic disc valves are fully open when the effective circulation area is larger, open and close quickly and labor-saving, the disc wrench can be completed by rotating the 90 angle of opening and closing, due to the rotating shaft on both sides of the disc plate hand media force is close to equal and the torque generated by the direction of the opposite direction, and thus open and close the torque is smaller, low pressure can be achieved under good sealing, disc valve sealing materials are butyl rubber, Viton? rubber, edible rubber, lined with PTFE sealing performance. Good, which hard seal disc valve for the soft and hard laminated metal sheet with metal hard seal and elastic seal of the heavy advantages, no matter in the low temperature have excellent sealing performance.
Butterfly valve structure and working principle of the applicable environmental analysis
Butterfly valve butterfly plate is installed in the direction of the diameter of the pipeline. In the butterfly valve body cylindrical channel, disc-shaped butterfly plate rotating around the axis, the rotation angle of 0 ° ~ 90 ° between, rotated to 90 °, the valve is fully open state.
The butterfly valve has a simple structure, small size, light weight, and consists of only a few parts. And only need to rotate 90 ° can quickly open and close, simple operation, at the same time the electric valve has good fluid control characteristics. When the butterfly valve is in the fully open position, the thickness of the butterfly plate is the only resistance when the medium flows through the valve body, so the pressure drop generated by the valve is very small, so it has good flow control characteristics. Butterfly valve has two types of sealing: elastic seal and metal seal. Elastic seal valve, the seal can be set in the valve body or attached to the butterfly plate around.
Valves with metal seals generally have a longer life than those with elastic seals, but it is difficult to achieve complete sealing. Metal seals can adapt to higher operating temperatures, elastic seals have the defect of temperature limitation.
If a butterfly valve is required for use as a flow control, the main thing is to choose the correct size and type of valve. The structural principle of butterfly valve is especially suitable for making large diameter valves. Butterfly valves are not only widely used in general industry such as oil, gas, chemical, water treatment, but also used in cooling water systems of thermal power plants