The butterfly valve, also called the flap valve, is a valve with a simple structure. The opening and closing part of the butterfly valve is a disc-shaped butterfly plate, which rotates around its own axis in the valve body to achieve the purpose of opening and closing or adjustment.
The butterfly valve is not only simple in structure, small in size, light in weight, low in material consumption, small in installation size, small in driving torque, simple and fast in operation, but also has good flow regulation and closing and sealing characteristics at the same time. It has been developed in the past ten years. One of the fastest valve varieties.
Butterfly valves are widely used. Butterfly valves can be used to control the flow of various types of fluids such as air, water, steam, various corrosive media, mud, oil, and liquid metal. It mainly plays the role of cutting off and throttling on the pipeline.
The variety and quantity of butterfly valves continue to expand, and are developing towards high temperature, high pressure, large diameter, and high sealing. Now butterfly valves have long service life, excellent adjustment characteristics, and one valve with multiple functions. Its reliability and other performance indicators have reached a high level.
Ventilation butterfly valve is used in chemical industry, building materials, power station, glass and other industries, as well as in the dust containing cold air or hot air gas pipeline of environmental protection engineering. The ventilation butterfly valve is used as a pipeline control device to regulate the flow or cut off the gas medium. This kind of valve should be installed horizontally in the pipeline.
Read MoreSend InquiryPinless Butterfly Valve is a kind of valve which opens, closes and adjusts the fluid channel by the reciprocating rotation of the disc type opening and closing parts about 90 degrees. As a component used to realize the on-off and flow control of pipeline system, the pin-less butterfly valve has been widely used in many fields such as petroleum, chemical industry, metallurgy, etc.
Read MoreSend InquiryHydraulic Control Butterfly Valve is suitable for water pump outlet and turbine inlet pipeline, as a closed circuit valve and check valve, used to avoid and reduce the backflow of the pipeline system medium and produce excessive water hammer, in order to protect the pipeline system.
Read MoreSend InquiryPneumatic flanged butterfly valve can be divided into elastic seal and metal seal according to the sealing form. The elastic seal materials include NBR and fluororubber, the hard seal butterfly valve is multi-layer metal hard seal, which has the advantages of elastic seal and excellent sealing performance at low temperature. Compared with the clip type butterfly valve, the pneumatic flanged butterfly valve has higher pressure resistance. Generally, the flange type butterfly valve is used in the high pressure condition.
Read MoreSend InquiryThe welded butterfly valve adopts precise J-shaped elastic sealing ring and three eccentric multi-layer metal hard sealing structure, which has good corrosion resistance and long service life. The three eccentric welded butterfly valve has two-way sealing function, and the product meets the valve pressure test standard of China GB / T13927-92.
Read MoreSend InquiryThe flexible seat seal gate valve as a whole packing using plastic deformation compensation function to achieve a good sealing effect, to overcome the generally poor valve seal, the phenomenon of leakage and rust.
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