Butterfly Valve

The GAIRUI 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.

The GAIRUI 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.

The GAIRUI 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.

The GAIRUI 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.

The GAIRUI 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.

Applicable media of U-type butterfly valve: fresh water, sea water, air, steam, food, medicine, and various oils, acids, alkalis, salts, etc. Features: long service life, reliable sealing performance and no regular maintenance. The flow characteristic of butterfly valve is 3 times that of stop valve and 75% of that of gate valve of the same specification. Butterfly valve can realize the switching and regulating functions of fluid in the pipeline. Compared with gate valve and stop valve, it has better multifunctional type. With a variety of choices of Internals and elastic materials, butterfly valves are widely used in the chemical field.

The GAIRUI 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

The GAIRUI 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

The GAIRUI Hydraulic Actuator Butterfly Valves, Normally named as Counterweight Butterfly Valve is one type of Advanced Products used for management on Controlling Equipments. They are widely used into the area of entrance of Turbine in Hydraulic Power Station, or installed in the pump exit of irrigation, electric and water treatment areas which can replace the functions of Gate valve and Check Valve. When such product of Hydraulic Counterweight Butterfly Valve is operated, this valve is matched together with main pipeline systems, based on the principle of water pass procedures, through the pre-set on/off procedures, effectively derived the water hammer through the pipeline to realize the flow cut-off and ensure a safety or protection function onto such systems. Hydraulic Control Slow Closing Non-return Butterfly Valve(Counterweight Butterfly Valve) from rechon GAIRUI valves are with features of small flow co-efficiency, high automatic, complete functions or devices, reliable performance which is one new high auto-tech. Energy saving products designed and produced based on domestic/overseas similar areas covering valve, hydraulic and electric industries. With profound knowledge in such products, we rechon vango valve can also welcome customers' OEM order upon request to meet different areas requirement.

The Pneumatic Actuator Butterfly Valves is used as the round butterfly plate rotating with the valve to make the opening and closing. In order to realize the operation of the pneumatic valve, the valve is mainly used for the truncation valve, and it can also be designed to have the function of adjusting or adjusting the valve. At present, the use of the disc valve is more and more in the low pressure and large medium caliber pipeline. The butterfly plate of butterfly valve is installed in the diameter direction of the pipeline. In the cylindrical passage of the butterfly valve body, the disc shaped butterfly plate rotates around the axis, and the rotation angle is 0 degrees ~90 degrees. When the rotation is 90 degrees, the valve is fully opened.

The Electric Actuator Butterfly Valves is used as the gas medium to regulate the flow or cut off device in the dust cold wind or hot air pipe of the ventilation and environmental protection engineering in gold, chemical, building materials, power plant, glass and other industries. This valve is used as a gas medium to regulate flow or cut off as a gas medium in the dust cold air or hot air pipes of the ventilation and environmental protection projects in the industries of gold, chemical, building materials, power plants, glass and other industries.