The three-bar cut-off butterfly valve includes the valve body, the valve plate and the driving device. The valve plate is opened and closed by a four-bar mechanism. The four-bar mechanism includes an active rod fixed to the main transmission shaft, a two-follower rod between the transmission shaft and the valve plate, and a valve plate. The valve plate support is arranged on the valve plate, the active rod is connected with the valve plate support, and the two follower rods are connected with the transmission shaft and the valve plate support respectively. The butterfly valve drive device drives the main drive shaft to rotate, so as to drive the four-linkage mechanism composed of active rod, two-follower rod and valve plate to move relative to the valve body pedestal, select the appropriate connecting rod size, make the valve plate move according to the set running track, and realize the reliable valve opening and closing action. The lever cutting butterfly valve has the advantages of small structure size and light weight. The valve plate has a period of opening and closing translation process relative to the valve body at the moment of valve opening and closing, and the friction free operation can ensure the sealing performance of the sealing surface for a long time. 1 Suitable for blast furnace hot blast furnace system, can be used as cold air valve, gas (air) cut-off valve, gas (air) combustion valve, flue valve and so on. The utility model has the advantages of compact structure, light weight, small installation space, strict and reliable seal and long life. 2. Main Technical characteristics of connecting Bar cutting Butterfly Valve The finite element analysis and design are adopted to optimize the size of the connecting rod system to ensure the reliable running track of the valve under high temperature and high pressure. At the same time, we adopt the special structure design of sealing compensation, coating, surfacing wear and corrosion resistant material, multi-layer sealing structure at the shaft end, etc., and the use of many patented technologies makes the connecting rod cutting butterfly valve have the characteristics of high temperature resistance, wear resistance and long life.
Suitable for large and medium blast furnace gas cleaning system, used as gas pressure regulating valve group, can also be used in other systems that need decompression and must maintain stable production. The pressure regulating valve group is composed of several regulating valves and a constant pipe, which has good regulating performance.
The butterfly-shaped buffer check valve is composed of a valve body, a valve clack, a buffer device and a micro-regulating valve. The product has the characteristics of novel structure, small volume, small fluid resistance, stable operation, reliable sealing, abrasion resistance, good buffer performance and the like, and is mainly used for industrial water supply and water pump outlet of the sewage treatment plant, and the medium in the pipe network is prevented from flowing reversely. The destructive water hammer is automatically eliminated, so that the water pump and the pipeline are not damaged The butterfly type buffer check valve can be divided according to its structure and installation mode. 1. The disc of the butterfly buffer check valve is disc shaped and rotates around the rotating shaft of the seat passage. Because the inner channel of the valve is streamlined and the flow resistance is smaller than that of the lifting butterfly check valve, it is suitable for large caliber situations with low velocity and irregular flow, but not suitable for pulsating flow, and its sealing performance is not as good as that of lifting type. Butterfly check valve is divided into three types: single valve type, double valve type and multi half type. These three forms are mainly divided according to valve caliber, in order to prevent the medium from stopping flow or backflow, and to reduce the hydraulic impact. 2, butterfly buffer check valve: disc sliding along the vertical center line of the valve body check valve, the internal thread check valve can only be installed on the horizontal pipe, in the high pressure small caliber check valve disc can use a ball. Butterfly check valve body shape is the same as globe valve (can be used with globe valve), so its fluid resistance coefficient is large. The structure is similar to the globe valve, and the valve body and disc are the same as the globe valve. The upper part of the disc and the lower part of the cover are machined with a guide sleeve, and the disc guide can be lifted and lifted freely in the guide simple of the valve. When the medium flows down, the disc is opened by the medium thrust, and when the medium stops, the disc falls on the seat from drooping, which plays the role of preventing the media countercurrent. The direction of the medium inlet and outlet channel of the straight butterfly check valve is perpendicular to the direction of the valve seat channel, and the direction of the medium inlet and outlet channel of the vertical lifting check valve is the same as that of the valve seat channel, and its flow resistance is smaller than that of the straightway type.
The pneumatic double-clamp type hard-sealing butterfly valve adopts a precise j-shaped elastic sealing ring and a three-eccentric multi-level metal hard sealing structure, and is widely used for treating gold, electric power, petrochemical industry, water supply and drainage and municipal construction of the medium temperature and 425 DEG C, And is used for regulating flow and carrying off fluid. Characteristics of Pneumatic clamping hard Seal Butterfly Valve 1. The pneumatic clamping hard seal butterfly valve adopts three eccentric sealing structure, and the valve seat and butterfly plate have almost no wear and tear, so it has the sealing function of more and more tight. 2. The sealing ring is made of stainless steel, and has the dual advantages of metal hard seal and elastic sealing, and has the characteristics of corrosion resistance, long service life and the like, both at low temperature and high temperature. 3. The sealing surface of the disc is made of hardfacing cobalt-based hard alloy, and the sealing surface is resistant to wear and has long service life. 4. The large size butterfly plate adopts quilting structure, which has the advantages of high strength, large overcurrent area and small flow resistance. 5. The valve has two-way sealing function. The valve is not limited by the flow of medium during installation, and is not affected by the space position. It can be installed in any direction. 6.The drive unit can be installed at multiple stations (rotated 90 ° or 180 °) for ease of use by the user The gas butterfly valve is mainly divided into hard seal gas butterfly valve and rubber soft seal butterfly valve according to different sealing forms.
The metallurgical gate valve is installed on the combustion air, gas, cold air and flue gas pipes of the hot blast stove system, cutting off the medium. In general, the gate works only in the full open or full off state and is not suitable for use as an adjustment or throttle. Suitable for combustion air, gas, cold air and flue gas piping in blast furnace hot blast furnace system Wedge block is arranged on both sides of valve body to realize forced sealing Cemented carbide sealing surface
The blast furnace hot air valve is arranged at the hot air outlet of the hot blast furnace. Open the hot air valve during the hot blast furnace supply period, and the hot air is sent to the hot air main through the hot air branch pipe. During the braised furnace and combustion of the hot blast furnace, the hot air valve is closed and the medium is cut off. Suitable for pipes with medium temperature below 1450 in blast furnace hot blast furnace system, which can be used as hot blast valve, backflow stop air valve, preheating furnace hot air cut off valve, etc. New products with independent intellectual property rights, with the characteristics of water saving, energy saving and longevity. Driving mode: hydraulic drive, electric drive Valve water cooled, lined with heat protection, insulation material. Shall be opened and closed under the condition of uniform pressure
NE-C TYPE Wafer butterfly valves Suitable for ASME CLASS150 flange Standard: API609, API598 Sizes available: 2" - 12" Features: Long neck , bi-direction sealing, integral flange seal, pinless disc, one-piece body, blowout proof stem,10-position locking handle/ gear operated Body:Epoxy coated cast iron/ductile iron, carbon steel, stainless steel Disc:Ductile iron nickel plated, aluminum bronze, 304SS, 316SS Stem:416SS, 316SS, Monel Seat: NBR, EPDM, Viton, Hypalon Chemical and petrochemical Oil and gas drilling and production Water and waste water Marine and government Power Agriculture Mining and materials Dry bulk handling
Free-valves centric butterfly valve adopt center lined principle to design, it uses the flexibility rubber seat, could easily achieve zero leakage and bi-directional sealing, it also can be used as regulation and shut-off device to deal with corrosive, non-corrosive gases, liquids in pipelines . Features 1.Bi-directional sealing, throttling operation and shut-off function. 2.Fully rubber lined body, with lined rubber extending up to the flange contact face, resilient seat. 3.The choice of disc and seat materials to suit working conditions and medium. 4.With self lubricated ptfe lined bearing designing , life cycles up to ten thousand times cycles . Technical specifications 1)size rangenps2~nps64, 2)pressure rangepn6~pn16, class150 3)body materialcarbon steel, stainless steel, copper alloy 4) sealing materialrubber or ptfe 5) body typewafer b ody type, lug type or flange type 6) working temp erature:120 7) operating methodworm gear, electric, pneumatic . 8) pressure test:gb/t13927; api598 9) face to face: gb/t12221; api609, en 558 Applicable Free-valves centric butterfly valve could easily achieve bi-directional sealing, therefore is a widely applied valve in oilfield, agriculture, power plant condensates waterworks, water treatment, seawater, exhaust, flue gas.Because of rubber lined body materials, it is usually used in low pressure lines.
Pneumatic Ceramic Double Disc Gate Valve FREE-Valves Pneumatic Ceramic Double Disc Gate Valve is mainly used in feeding and dumping the dry powder and the transport pipeline, which not only adopt toughening ceramic as shut off and wear out resistance material, but also design construction of autofrettage pressure self-sealing and valve disc auto-rotate, so as to the sealing surface within the dry powder get more wear resistance in process of opening and closing frequently, thereby, which guarantee the high requirements of sealing performance of this valve and long working time. Features: Sealing pair is made of structural ceramicswhich have perfect performance to resist wear and flushing. Two-side sealing can realized due to double plate structure of the pneumatic ceramic double disc gate valve It inserts spring between double valve discs to ensure self- sealing through bi-directional flexible preload pressure of spring, having characteristics of low pressure bi-directional sealing and without dust clogging phenomenon in the process of the opening and closing of valve. The valve has characteristics of good se The standards of flange end sASME B16.5GB/T9113 ominal Pressure1.0MPa,Cla ss150 Size RangDN1 50DN 300, NPS6 NPS12 Connection typeFlange Working Temperation250 Operating TypePneumatic, manual Sealing surface materialEngineering ceramic Pressure testGB/T13927, API598 Face to FaceGB/T12221, API609 Applications Power plant ash handling system. Cement industry-dry powders converying and dumping. Dressing works-dry powder materials selection and converying.
Ceramic Knife Gate Valve FREE-Valves Ceramic Knife Gate Valves are known as slurry gate valves. Its have simple structure and can cut off medium which contains solid particles and fibers, but for some very hard particles or serious erosive mediums, general metal seated knife gate valves will be washed out easily, so ceramic knife gate valves are very suitable for those mediums containing fibers and hard solid particles. Features: 1) Short length of structuresaving matrial lightweight easy to installsmall space occupation. 2) Seat is designed with single seat type to prevent sticking and accumulation of ash residue. 3) The sealing surface is made of structure ceramic with abrasion resistance and long service life. Technical Specification: 1) Size Range: NPS2~NPS24,DN50DN600 2) Pressure Range: Class 150 /PN6/PN10 3) Applicable Temperature.: 0200 4) Connection T ype: Fl ange , wafer 5) Sealing material: engineering ceramics 6) Body Material: WCB, CF8, CF8M, CF3M 7) Pressure test:GB/T13927, API598 8) Face to Face: GB/T12221, API609 9) Valve body : GB/T12224,ASME B16.34 Operating Mode:Manual/Electric/Pneumatic Application: FREE-Valve's Ceramic Knife Gate Valves are suitable for the conveying system with liquid-solid or gas -solid two-phrase medium , such as ash, mine residue and coal residue in iron and steel plant or ash conveying system of power plant , paper pulp in paper industry, sewage and slurry in decontamination plant ,especially useful for the heavy medium system of coal mill.
Y type slurry valve Free-valve's y type slurry valve is ideal for many applications because the valves are designed for use on abrasion materials. Y type slurry valve is divided into left and right parts with a seat between them. The bolt connecting the two parts can be dissembled to replace the valve seat.The valve with abrasion resistance, high pressure resistance, erosion resistance and anti-scabbing performance.The y type slurry valve is specially offered for controlling or stopping the slurry, the slurry valves are used primarily in the alumina, metallurgy , chemical fertilizer and mining industry. Features 1.Y type slurry valve is divided into left and right parts with a seat between them. The seat is installed between the two valve body , so the seat can be replaced easily .The left and right valve bodies are provided in geometric design, the ansys and solidworks software are used for flow analysis in the cavity of the valve body. 2. An anti-washing and anti-corrosion protection stem is set in the cavity of the valve body. 3. Y type slurry valve has a good abrasion resistance with higher hardness because full stellite or tungsten carbide overlaying seat sealing surface. 4. Anti-washing and anticorrosion protection plate is set in the cavity of the valve body . 5. A rotation-resitant device is set up to ensure that the valve stem only has straight line motions and no rotation. Technical specification: Flange connectionasme b16.5, gb/t9113 Design standardasme b16.34 Pressure rangclass150~class600 Size rangdn50~dn 500, nps2~nps20 Matrtialcarbon steel, stainless steel Connection typeflange Working temperation0-425 dgree c Operating typepneumatic, manual, electric Sealing surface materialcarbid Pressure testgb/t13927, api598 Face to facegb/t12221, api609 Application Alumina, metallurgy , chemical fertilizer , mining industry, paper-making
Pneumatic Tank Bottom Angle Valve FREE-Valves Pneumatic Tank Bottom Angle Valves are designed for the convenient and fast discharging the material or samples from the bottom of the reactor,drain or feed vessel .The valve can be welded or installed on the vessel through the flange at the bottom of the valve , tank bottom angle valves are most commonly installed on feeding of vessels or dead space free draining and pipelines. Features 1.This range of manual control tank bottom angle valve is manufactured in integrated structure. 2. Structures with disc opening into the tank and disc opening into the valve. 3. Available with 45 degree outlet angle in the body. 4. A rotation-resistant device is set up to ensure that the valve stem only has straight line motions and no rotation. 5.The protection plate makes for the outstanding erosion res istance and corrosion resistance of the valve body. 6.The sealing surface of the valve seat and the valve disc is made of over laying cemented carbide or painted with tungsten carbide. The a uxilia r y line sealing guarantee the reliability of the sealing performance. Technical Parameters Flange connectionASME B16.5,GB/T9113 Design standardASME B16.34 Pressure rangClass150~Class300 Size RangDN50~DN 350, NPS2 ~NPS14 Materialcarbon steel, stainless steel Connection typeFlange Working Temperature0-425 degree C Operating TypePneumatic, manual, electric Sealing surface materialAlloy Pressure testGB/T13927, API598 Applications FREE-Valves Pneumatic Tank Bottom Angle Valves are widely used in the petrochemical industry,alumina industry,steel industry,polymer,mining industry,the pharmaceutical and fine chemicals, and mineral processing industries.
Fully welded ball valve FREE-Valves Fully Welded Ball Valve are widely used in almost all the industry .Compared to the general casting ball valve, fully welded ball valve have a highly performance and longer life time . It was widely used in city gas ,city heat supply ,oil chemical industry, ship building ,steel ,power plant etc . Fully welded ball valve can be reliable run in the long time ,easy to be installed and less maintenance work . Benefits 1.Valve body material is the same as the pipe material , so they will not occur transformation due to unbalanced stress . 2.Face to face dimensions can be made according to customer requirement. 3.Material of valve seat is made up of PTFE+20%C se align ring and metal sealing ,which can adapt to the change of pressure and temperature, So the leakage will not occur during the pressure and temperature range. 4.The ball body has a highly machining precision due to the tracking of computer detector, so the ball valve was shut off/shut on c onveniently. Valve Specification Type : FRQ61FC,FRQ361FC Size Range:NPS2~NPS48 , DN50 ~DN1200 Pressure Range :Class150~Class600,1.6MPa~4.0MPa Material of valve body: A105,F304,F316 Connect Method :welding Design standard:ASME B16.34,API6D Test and Inspect:API598 Face to Face:ASME B16.10 Medium :Water ,oil ,gas ,acid ,alkaili etc Driving method : electric ,handle, worm gear etc . Application industry: centralized heating, coal gas pipe, waste gas treatment system, heat supply system
Fully welded ball valve Free-valve's fully welded ball valve are widely used in almost all the industry .Compared to the general casting ball valve, fully welded ball valve have a highly performance and longer life time . It was widely used in city gas , city heat supply , oil chemical industry, ship building , steel , power plant etc . Fully welded ball valve can be reliable run in the long time , easy to be installed and less maintenance work . Benefits 1.Valve body material is the same as the pipe material , so they will not occur transformation due to unbalanced stress . 2.Face to face dimensions can be made according to customer requirement. 3.Material of valve seat is made up of ptfe+20%c sealing ring and metal sealing , which can adapt to the change of pressure and temperature, so the leakage will not occur during the pressure and temperature range. 4.The ball body has a highly machining precision due to the tracking of computer detector, so the ball valve was shut off/shut on conveniently. Valve specification Type : frq61fc, frq361fc Size range:nps2~nps48 , dn50 ~dn1200 Pressure range :class150~class600, 1.6mpa~4.0mpa Material of valve body: a105, f304, f316 Connect method :welding Design standard:asme b16.34, api6d Test and inspect:api598 Face to face:asme b16.10 Medium :water , oil , gas , acid , alkaili etc Driving method : electric , handle, worm gear etc . Application industry: Centralized heating , coal gas pipe, waste gas treatment system, heat supply system.
Free-valve's butt welding butterfly valves are suitable for high temperature , high pressure , corrosion etc. Its are quarter-turn valves which are used for isolating or regulating flow .They are favoured for being lighter in weight, requiring less support and are suitable for water and gas, which makes them useful across industrial, mining and power applications. Features: 1. Reliable sealing, convenient operation, opening and closing fast. 2. This kind of valve with no flange, which makes pipe elegantly and binding up conveniently. 3. It adopt triple offset elasticity or multiple layers hard sealing configuration, the hermetical capability can reach to reliable sealing performance. Technical specification: 1) size range: nps6~nps42;dn150~dn1050 2) pressure range: class 150~class300;pn10~pn40 3)body materialcarbon steel, stainless steel & other materials 4) sealing material: sta inle ss steel, hard alloy& other materials 5) connection ty pe:butt weld 6)pressure test:gb/t13927; api598 7)structure length: gb/t12221;api609; 8) jointing dimension: gb/t12224; ansi b16.25 9) operating method:worm gear, electric, pneumatic . Application: Free-valves triple offset butterfly valve is applied to use in heating system, chemical, petroleum, natural gas, refining, energy, food and the role of regulating valve
Free-valves double offset butterfly valves can be used for shut-off and throttling control. It can ensure sealing more reliable and achieve non-leakage because of the resilient-seated design. The butterfly valve can realize rotary under the condition of low torque by the resilient-seated design , which means a longer service life , so as to cost-effective of choosing actuator. Features 1. Reliable sealing, convenient operation, opening and closing fast. 2. The valves seat is available in metal , ptfe and graphite ptfe , which makes the valve suitable for liquid or gas service with many applications 3. The resilient-seated design ensures minimal seat wear and double offset disc design provides excellent throttling capabilities , it has characteristic of super long usage life, frictionless closure, high temperature etc. 4. Blowout proof shaft design and the application of self lubricated bearings. 5.Preventing the disc from closing under over/under travel by adjusting mechanical stopper. Technical specifications 1) size range, NPS2~NPS60;DN50~ DN1500. 2) pressure range: Class 150~Class 300 ; PN10~ PN40. 3)body material:carbon steel, stainless steel & other materials. 4) sealing material:ptfe and graphite ptfe , stainless steel, hard alloy& other materials 5) connection method, flange, wafer. 6) operating method, worm gear, electric, pneumatic . 7) pressure test:GB/T13927; API598. 8) face to face: GB/T12221; API609. Applicable , Free-valve's double offset butterfly valve is applied to use in chemical, petroleum, natural gas, refining, power plants, water distribution, water treatment, pre-treated , waste water, industry and pressure management and the role of regulating valve.
FREE- Valve's Ceramic Ball Valves are designed with engineering ceramics the engineering ceramics internal parts provide excellent wear resistance, the ceramic ball valves are widely used as an open & close function as well as a throttling control tasks in corrosive medium with abrasive solids content. Features: 1.The hardness of the ceramic material can be higher than HRC80. 2.Engineering internal parts of ceramic ball valve provide superior protection from corrosive and abrasive medium. 3.Customized actuation types are installed on the ceramic ball valve, the manual lever or gear box, as well as with pneumatic, electric and hydraulic actuators 4.Customized V type ceramic control valve is also available for us. 5.The valve has a floating ball design, the ball is floating, the ball has a defined clearance and is pressed against the downstream seat under the differential pressure to achieve sealing. Technical Specification The standards of flange endsASME B16.5,GB/T9113 Nominal Pressure1. 0MPa,Class150 Size RangeDN50~DN 200, NPS2 ~NPS8 Connection typeFlange Working Temperature200 degree C Operating TypeManual, Pneumatic and Electric Sealing surface materialEngineering ceramic Pressure testGB/T13927, API598 Face to FaceGB/T12221, API609 Application FREE- Valve's Ceramic Ball Valves are suitable for Silicon Powder, Alumina Powder, Dry Coal Powder, Limestone Slurry, Gypsum Slurry, Plaster, Fly Ash, Mining Ore, Coal Powder Injection, Metallurgical dust, Thermal Power plant FGD , LiCoO2 powder equipment
Pneumatic rotating type ceramic gate valve Free- valves pneumatic rotating type ceramic gate valves are designed for pressurized and vacuum systems including dense and dilute phase pneumatic conveying systems, discharge and vent applications in steel plant and coal power. The whole of ceramic sealing faces of the valves are well ground and polished, which is ensure a reliable sealing performance of the valve. Features 1. The valves are sturdy and maintenance free enough to withstand the most severe conditions. 2.The sealing faces of the valve are made of toughened engineering ceramics with good abrasion resistance and prolonged service life. 3.Product with customized structural length and connection si e ash deposition on the sealing surface, so the valves have much longer service. 5.The rotation structure with shorter stroke makes and the whole of ceramic sealing faces of the valves, which are ensure a reliable sealin g per formanc e of the valve. Technical specification: 1) size rang: nps4~nps12, dn100dn300 2) pressure rang: class 150 /PN6/PN10 3) applicable temperature: 0-200degree C 4) connection type: flange 5) sealing material: engineering ceramics 6) pressure test:GB/T13927, API598 7) face to face: GB/T12221, API609 8) valve body : GB/T12224, ASME B16.34 Operating mode: pneumatic Application: Free-valves pneumatic rotating type ceramic gate valves is suitable for coal fired power plant, steel plant, cereals transport system, cement transport systems. In these applications, pneumatic conveying method is used to reduce manpower demand, and improve system efficiency and reliability, and is easy to realize automation. -
Pneumatic Tank Bottom Angle Valve FREE-Valve's Pneumatic Tank Bottom Angle Valves are designed for the convenient and fast discharging the material or samples from the bottom of the reactor, drain or feed vessel .The valve can be welded or installed on the vessel through the flange at the bottom of the valve , tank bottom angle valves are most commonly installed on feeding of vessels or dead space free draining and pipelines. Features 1.This range of manual control tank bottom angle valve is manufactured in integrated structure. 2. Structures with disc opening into the tank and disc opening into the valve. 3. Available with 45 degree outlet angle in the body. 4. A rotation-resistant device is set up to ensure that the valve stem only has straight line motions and no rotation. 5.The protection plate makes for the outstanding erosion resistance and corrosion resistance of the valve body. 6.The sealing surface of t he valve seat and the valve disc is made of over laying cemented carbide or painted with tungsten carbide. The au bility of the sealin g performance. Technical Para meters Flange connection ASME B16.5,GB/T9113 Design standardASME B16.34 Pressure rangClass150~Class300 Size RangDN50~DN 350, NPS2 ~NPS14 Material carbon steel, stainless steel Connection type Flange Working Temperature:0-425degree C Operating Type Pneumatic, manual, electric Sealing surface materialAlloyCarbide Pressure testGB/T13927, API598 Application FREE-Valve Tank Bottom Angle Valve are widely used in the petrochemical indutry,alumina indutry,steel industry,polymer,mining industry, the pharmaceutical and fine chemical, and mineral processing industries.
1, Product Information: All ZHW Series F80 rubber check valves are available in a wide selection of back pressure capabilities and elastomers, including GB certified material. Because of the wide array of available configurations, there?s sure to be a ZHW Series F80 valve to suit your application. ZHW Series F80 rubber check valves won?t freeze or deform, and they function solely on the inlet and back pressure which are present in each unique situation. Each rubber check valve is designed by some of the most experienced rubber technicians in the industry, and are carefully constructed using the finest engineered materials available. All of our Series F80 valves are precisely manufactured to ensure proper operation, and will provide years of unhindered, trouble-free service. 2, Product Applications: 1). Sewage systems 2). Stormwater outfall 3). Drainage systems 4). Flood control systems 5). Drainage from dams 6). Pumping stations / wet wells 7). Drainages in airports and highways 8). CSO / SSO / Effluent discharge 9) Drainages in sewers 10). Submerged outfall diffuser nozzles 11). Drainage from sewage reservoirs 12). Coarse bubble air diffusers, Sparging nozzles 3, Product Features: All-rubber construction to resist abrasive slurries ISO standard construction Ultra-quiet operation, with no water hammer Unique design to prevent backflow Negligible maintenance and energy costs Will not warp or freeze Quick interchange with any flap type check valve Available in sizes from 1� to 96�
