Valve applies occasion:
Butterfly valves are widely used for flow control. As the butterfly valve in the pipe pressure loss in the large, about 3 times the gate. So, the selection valve, the piping system should be fully considered by the effects of pressure loss should be considered closed when the butterfly plate to withstand the rugged nature of medium pressure pipelines, as well as high temperatures, flexible seat material can withstand the operating temperature limits.
Butterfly the length and overall height of the structure is relatively small, open, closing speed of the block, have a good flow control characteristics, it is the most suitable framework for principles of large-diameter valves produced. When asked to use butterfly valves for control of flow, the most important choice is the right size and type of butterfly valves, which made him a more effective work.
Typically, the throttle, regulating control and slurry medium, the demand structure, the length of short, open and close speed. Low-voltage cut-off, it is recommended the use of butterfly valves.
In a double-digit adjusted necking channel, low noise, there is the phenomenon of cavitation and gasification, a small amount of leakage to the atmosphere, with corrosive media may make use of butterfly valves.
Throttle adjustment in special operating conditions or require strict sealing, or wear a serious, low-temperature working conditions such as use of butterfly valves, the need to use specially designed metal seal with three eccentric adjustment device or a dedicated dual-eccentric butterfly valve.
Center line butterfly valve for applications that require to be fully enclosed, gas leak to another, require a higher life expectancy, working temperature -10-150 degree of fresh water, sewage, water, salt water, steam, gas, food, medicine, oil and the kinds of acid-base and other pipes on the road.
Soft-eccentric butterfly valve for the bi-directional ventilation and dust removal pipe hoist and regulation, widely used in metallurgy, light industry, electric power, petroleum chemical system of gas pipelines and waterways.
Metal on metal wire seal double eccentric butterfly valve for urban heating, gas, water and gas, oil, acid and alkali and other pipelines, as the regulation and closure devices.
Metal on metal surface sealing three-eccentric butterfly valve not only as large-scale pressure swing adsorption gas separation unit process control valves used, can be widely used in petroleum, petrochemical, chemical, metallurgy, electric power and other areas, is the valve, globe valve, etc. Good alternative products.
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