Butterfly Valve

High Performance Butterfly Valves are designed on the basis of absorbing the advantages of several different structural butterfly valves. The valve plate seal face of this butterfly valve is spherical arc surface body, and the sealing mechanism achieves a real dynamic seal through system pressure, so it has excellent cutting performance and durability. Its small size, light weight, wide manufacturing range, easy maintenance.

Metal Seated Butterfly Valves adopts three eccentric seal structure, the seat and butterfly plate have almost no wear and tighter sealing function. The seal ring is welded with stainless steel. It has the dual advantages of metal hard seal and elastic seal. No matter at low temperature and high temperature, it has excellent sealing performance and corrosion resistance. With long life and so on, the seal face of the butterfly plate is hardfaced with cobalt based hard alloy, the seal face is wear-resistant, and the length of the butterfly plate is long, the strength is high, the overflow area is large, the flow resistance is small, the metal hard seal butterfly valve has the function of two-way sealing, it is not restricted by the flow direction of the medium, and is not subject to the space position. It can be installed in any direction.

The Wafer Type Butterfly Valves is used to adjust the flow rate and the discharge body with precision J - shaped elastic seal ring and three eccentric multi layer metal hard seal structure, which are widely used in the gold, electric, petrochemical, water supply and municipal construction pipes of the medium temperature less than 425 degrees C. It is widely used in steam, hot water, water, oil, gas, natural gas, chemical and other process pipelines.

Cast Steel Lug Eccentric Butterfly Valves are widely used not only in petroleum, gas, chemical industry, water treatment and other general industries, but also in cooling water systems of thermal power stations. Used in the gas pipeline in the sulphuric acid industry: the inlet of the blower before the furnace, the inlet of the relay fan, the electric mist eliminator series and the connecting valve, the S02 main blower outlet, the converter regulation, the preheater exit and exit and other adjustment and cut-off air volume. The sulfur, conversion and dry sucking section used in sulphur making acid system is the first brand of the sulphur acid plant, which is considered to be a butterfly valve with good sealing performance, light operation, vice corrosion, high temperature resistance, convenient operation, flexible operation and safe and reliable use.

Welding Type Butterfly Valves is a simple regulating valve, and it can also be used for switch control of low pressure pipeline medium. Hard seal butterfly valves mainly cut off and throttling on pipelines. The butterfly valve opening and closing part is a disc shaped butterfly plate which rotates around its own axis in the valve body so as to achieve the purpose of opening or closing or regulating. The hard sealed butterfly valve is suitable for the pipes of the furnace, gas, steam, natural gas, city gas, cold and hot air, chemical smelting engineering and power generation environmental protection system to convey various corrosive and non corrosive fluid medium, which can be used to regulate and truncate the flow of the medium.

Wafer Concentric Butterfly Valves, as a component used to cut off and control the flow of pipeline system, has been widely used in many fields, such as oil, chemical, metallurgical and hydroelectric fields. In the known butterfly valve technology, its sealing form mostly adopts the sealing structure, and the sealing material is rubber, polytetrafluoroethylene and so on. Due to the limitation of structural characteristics, it is not suitable for such industries as high temperature, high pressure, corrosion resistance and wear resistance. A more advanced butterfly valve is three eccentric metal hard seal butterfly valve, the valve body and the seat are connected components, and the sealing surface layer of the seat is surfacing with temperature resistant and corrosion resistant alloy materials. The multi layer soft superimposed seal is fixed on the valve plate. This butterfly valve has the high temperature resistance compared with the traditional butterfly valve, the operation is light and open and closed without friction. The valve is compensated and sealed with the torque of the transmission mechanism in the closed, and improves the sealing performance of the butterfly valve and the advantages of prolonging the service life.

The Lug Concentric Butterfly Valves can be selected by manual, worm, pneumatic and electric. The connection mode can choose flanges and pair clips. The structure forms can choose single eccentricity, middle line, double eccentricity and three eccentricity. The sealing structure can choose soft seal, hard seal and pressure range PN0.1-10Mpa. The common name is DN40 to 2000mm, the material can be selected. Cast steel and stainless steel.

The Flanged Concentric Butterfly Valves uses a polytetrafluoroethylene lined butterfly plate with a spherical seal surface. The valve operates light, tight sealing performance and long service life, and can be used for fast cutting or regulating flow. It is suitable for occasions requiring reliable sealing and good regulation characteristics. The valve body is divided into body type, and the seal at both ends of the valve shaft is controlled by the rotating base surface and the fluorine rubber between the butterfly plate and the valve seat, and the valve shaft is not contacted with the fluid medium in the cavity. It is widely used for the transportation of liquid and gas (including steam) in various types of industrial pipes, and has serious corrosive medium, such as sulfuric acid, hydrofluoric acid, phosphoric acid, chlorine gas, strong alkali, and aqua regia.

PTFE Lined Butterfly Valves, not only has the function of cutting off and intercepting flow in the pipeline, but also has taken the sealing performance as the main index for evaluation in recent years, which is favored by the market. In addition, the fluorine lined valve also has the advantages of small volume, light weight and simple structure. Compared with the gate valve with the same parameters, the average weight is reduced by 30-50%. The opening and closing process can be realized by rotating the butterfly plate by 90 °, In addition, the butterfly plates on both sides of the rotating shaft are approximately equal by the medium force and the torque is opposite, so the opening and closing torque is small

Teflon Lined Butterfly Valves, not only has the function of cutting off and intercepting flow in the pipeline, but also has taken the sealing performance as the main index for evaluation in recent years, which is favored by the market. In addition, the fluorine lined valve also has the advantages of small volume, light weight and simple structure. Compared with the gate valve with the same parameters, the average weight is reduced by 30-50%. The opening and closing process can be realized by rotating the butterfly plate by 90 °, In addition, the butterfly plates on both sides of the rotating shaft are approximately equal by the medium force and the torque is opposite, so the opening and closing torque is small