Structural features of stainless steel knife gate valve:
The stainless steel gate valve is used in the coal preparation, slagging, urban sewage treatment, food, paper, medicine, petroleum, chemical and other oil, water and steam pipelines of the mine power plant, and the cement slurry and gold ore powder in the pipeline are connected or cut off. , mineral sand, slag, slime, pulp, wood pulp, tailings, fiber, dust, chemical treatment of sewage, sedimentation tanks, asphalt, silo exports, water is not beautiful, grain, slaughterhouse wastewater and other media. The stainless steel ram can prevent seal leakage caused by erosion, and the fine grinding and polishing treatment can achieve better sealing effect. The bottom end of the blade is processed into a blade shape, which has a cutting function for soft materials such as fiber, pulp, and wood pulp, and has excellent opening and blocking dip dyeing. A hard polytetrafluoroethylene scraper is installed on the upper end of the blade to prevent dust, gravel and other abrasive substances from entering the packing box, which can significantly improve the life of the blade. The raised sealing surface of the ram can scrape off the adhesive on the sealing surface and automatically break the roots.
The stainless steel gate valve body is durable and durable. The valve body reinforcement design improves the strength of the valve body, and the double head screw is used to open and close more quickly.
The overall stainless steel material prevents corrosion and damage. The valve body and the packing culvert are carefully forged, wherein the valve body is integrally forged by flange type, and the material can be selected according to the user’s needs: 304, 316, 316L, WCB, 2Crl3, and the sealing ring is made of PTFE reinforced PTFE material, which is resistant to erosion. It is resistant to abrasion and slag.
The full circular design of the parallel channel does not contain slag and is not blocked. The valve plate has 5 support points for a good self-centering of the valve plate. When the valve is in a blocked condition and subjected to back pressure, the valve plate does not shift. The triangular bracket saves raw materials and guarantees the required mechanical function. The knife-type gate valve can also be used with the drive head structure. The scientific meal packing and stuffing box design makes the meal safe and useful and durable. The short structure length can save raw materials, installation space, and also support the strength of the pipeline. The guide block on the valve body of the knife gate valve causes the shutter to behave correctly. The extrusion block ensures that the shutter is usefully sealed.
The V-shaped shutter can be used as a regulating valve. The design is compact, the space is small, the weight is light, the price is cheap, the installation is easy, the wear-resistant anti-blocking method is perfect, the maintenance is convenient, the use is convenient, the service life is long, and the drive assembly can be selected.
The knife-type gate valve has the advantages of simple and compact structure, reasonable design, light material, reliable sealing, sleek operation, small volume, fluent passage, small flow resistance, light weight, easy installation and easy disassembly. It has completely adjusted the common gate valve. The weight of the slab gate valve, globe valve, regulating valve, butterfly valve, ball valve and other valves, such as the weight, flow resistance, large area, difficult to install, etc., can be used to replace the general-purpose shut-off valve and regulating valve, which can work at 1.0MPa. – 2.5MPa, normal operation under the condition of temperature -29-550 °C. The gate of the knife gate valve has a shearing function, which can scrape off the adhesive on the sealing surface and automatically cut off the roots. The stainless steel gate can prevent seal leakage caused by erosion.