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Pneumatic knife gate is one of the important varieties of production process control valves. Switching control can be completed by using a solenoid valve, and adjustment control can also be completed by using an electric valve positioner. Users can choose according to actual needs. The main body is made of cast steel, stainless steel, etc. It is especially suitable for paper industry, chemical industry, coal, sewage, sugar making and other industries.
l. Knife-shaped slurry gate valve is made of two types: dark rod and open rod (dark rod DN50 ～ 900mm, open rod DN50—900mm) according to different calibers. The full circular DC channel is designed without slag and jam. The bottom end of the blade is processed into a blade shape, which has a cutting function on soft materials such as fiber, pulp and wood pulp, and has a good opening and closing function. A hard PTFE mud scraper is installed on the top of the blade to prevent abrasive materials such as dust and grit from entering the stuffing box, which can significantly increase the blade life. Compact design, small footprint, light weight, cheap price, easy installation, complete wear-resistant and anti-blocking measures, easy maintenance, convenient use and long life, and optional drive device.
2. The valve body and packing culvert are precision cast. The valve body is flange-type integrally cast. The material can be selected according to user needs. 304, 316, 316L, WCB, 2Crl3. Corrosion, abrasion resistance, and non-slagging.
3. The valve plate has 5 support points, so that the valve plate has a good self-centering. When the valve is closed and subjected to back pressure, the valve plate does not shift.
4. Pneumatic knife gate can be equipped with hand wheel, manual zipper, spur gear transmission, bevel gear transmission, pneumatic and electric.
5. V-shaped, triangular and pentagonal channels can be made inside the pneumatic knife gate. V-type brake can be used as regulating control.
6. Pneumatic knife-gate connection types include wafer type, flange lug type, metal-to-metal hard seal, metal-to-polyurethane, and reinforced polytetrafluoroethylene soft seal.
7. Applicable medium: gold ore powder, tailings, pulp, wood pulp, fiber, dust, chemical treatment sewage, sedimentation tank, ore, slag, slime, asphalt, silo exit, fruit, grain, cement slurry, slaughter Plant wastewater and so on.
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