Ceramic Knife Gate Valve Suppliers and Manufacturers

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.

FREE-Valves Bi directional knife gate valves are known as slurry gate valves. Its are bidirectional valve deals with flow in both directions, while offering zero leakage. The U shape peripheral seat design ensures full-port flow and non-clogging shutoff.The disc bottom of knife gate valve is made into a blade shape with the purpose to cut some soft materials such as fiber,pulp or wood pulp, and it also serves favorable closing and opening. Features: 1) Knife gate valve is Bi directional,zero leakage,withstanding high differential pressure and full bore valve with minimal seat cavity for maximum flow capacity. 2) No groove is designed on the valve seat,which prevents accumulating media on the sealing surface, and thus avoids sealing surface leakage or disc blockage cause by media accumulation. 3) The integrated body structure with precision casing. 4) U shaped resilient seat is embed into the body and is well connected with the gate,and the friction is reduced during the upward and downward movements of the gate.This greatly prolongs the using life of the seat and realized bi directional sealing. 5) Replaceable flexible wire reinforced elastomer seat ensures bi-directional zero leakage shutoff. 6) Full port flow path with minimal pressure drop achieved through full port valve design. Technical Specification: 1)Size Range: NPS2~NPS48,DN50~DN1200 2)Pressure Range: Class 150 /PN6 /PN10 3) Applicable Temperature.: 0~200 4) Connection Type: wafer 5) Sealing material: Rubber,PTFE 6) Body Material: Ductile Iron 7) Disc material:Stainless steel 8) Pressure test:GB/T13927, API598 9) Face to Face: GB/T12221, API609 10) Valve body : GB/T12224,ASME B16.34 Operating Mode: Hand wheel,Bevel Gear,Pneumatic,Electric,Hydraulic Application: 1. Mining, coal washing, iron and steel industry used for washing coal pipes, filter slurry pipes, discharging ash pipes, etc. 2. Purification system used for waste water, mud, sewage and water with suspended solids. 3. Paper industry used for any mixture of pulp, material and water of any concentration.

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.

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. -