Manual flapper valve working principle

Manual flapper valve is a kind of valve which is always in close contact with the valve seat and sealed. Its principle is that there is a round opening with a diameter on the gate. Through the opening and closing of the gate, the round opening and closing of the gate can make the round mouth on the gate break away from and coincide with the diameter. The advantages of this valve are that there is no groove in the diameter of the valve body, the medium will not be blocked and blocked, and it has the characteristics of full bore flow. Its sealing structure can be divided into soft sealing and hard sealing structure. The penetrating knife gate valve has the characteristics of precise structure, good processability and compact structure. The sealing valve seat is of movable structure design with anti-wear and automatic compensation functions, so it has a long service life. In the process of closing and opening, the valve seat keeps close to the gate, which makes the opening and closing force of the valve stable and has the characteristics of cutting off the medium.

The electric gate valve and manual screw gate valve are usually used together with the unloader. The diameter of the manual screw gate valve is matched with the feeding port of the discharger, and there are two kinds of square and round.

Brief description: it is suitable for ventilation and dust removal in metallurgy, building materials, coal, mining, glass, light industry, papermaking and other industries, adjustment and cut-off of solid powder conveying and exhaust system pipeline. The gate valve has the advantages of simple structure, easy operation, flexible sliding and excellent sealing performance. Small local resistance loss, adjustable performance.

Manual flapper valve is mainly composed of frame, gate, screw rod, nut and other parts. The valve has the advantages of simple structure, flexible operation, light weight, no jam and fast cut-off. It is especially suitable for conveying and regulating the flow rate of all kinds of solid and powder materials with no viscosity and less than φ 10 mm. The installation of manual one-way screw gate is not limited by angle. The operation is convenient, and the opening can be adjusted at any time. When the valve is fully open, the erosion of the sealing surface by the working medium is smaller than that of the stop valve; the body structure is relatively simple and the manufacturing process is better.

Manual flapper valvedetails:

Nominal pressure: 0.05Mpa, applicable temperature: ≤ 200 ℃, suitable medium: grains, particles, powder materials, etc. Diameter: DN200 ～ 800200 × 200 ～ 800 × 800, with the most innovative design, it is suitable for the regulation of ventilation and dust removal, wind transmission and exhaust system pipeline in metallurgy, building materials, coal, mining, glass, light industry, papermaking and other industries, as well as the regulation and cut-off of solid powder transportation. The gate valve has the advantages of simple structure, easy operation, flexible sliding and excellent sealing performance. It has the advantages of small local resistance loss, good regulation performance, convenient maintenance and disassembly, and is not easy to deform. The sewage treatment valve series overcomes the problems of large air leakage, rapid deformation and difficult adjustment of the old plug valve. It is especially suitable for conveying non viscosity solid powder and less than Φ 10 mm granular material, crystal material and solid material.

Gate valve is also known as manual knife gate valve. Knife gate valve is a kind of valve which is always in close contact with the valve seat and sealed. Its principle is that there is a round opening with a diameter on the gate. Through the opening and closing of the gate, the round mouth on the gate is completely separated from and consistent with the diameter. The advantages of this valve are that there is no groove in the diameter of the valve body, the medium will not be blocked and blocked, and it has the full diameter flow characteristics, which is suitable for use in the pipeline of powder particle medium. The sealing structure of electric rectangular shutter regulating valve can be divided into soft seal and hard seal structure. The penetrating knife gate valve has the characteristics of precise structure, good processability and compact structure. The sealing valve seat is of movable structure design, with anti-wear and automatic compensation functions, so its service life is longer. In the process of closing and opening, the valve seat keeps close to the gate, which makes the opening and closing force of the valve stable and has the characteristics of cutting off the medium. Equipped with handwheel, the valve can be opened and closed directly by the handwheel.