Product advantages: more energy-saving (for example, no manual force is required to open and close the door), long service life (simple mechanical structure, convenient maintenance) and convenient use (no manual operation of the switch)
Cast iron flap door The main reason for the corrosion of cast iron gate is naturally related to the water quality. Generally, there are a small amount of acid-base or salt substances in all kinds of rivers, lakes and sea water. These material components will bring great corrosion damage to cast iron gate. Therefore, when we stop the development of corresponding anti-corrosion technology, we should do a good job in this aspect. The second type of corrosion impact on cast iron gate is the installation and transportation of this kind of gate Environmental climate and other elements. Under different climatic conditions, the temperature and humidity of the air and the corresponding cloudy and sunny conditions are also different, so when developing the cast iron gate, we should stop the corresponding differential design according to the relevant elements of the detailed application environment, so as to ensure its better use for us.
Can cast iron clap door leak? Structural features: the flap door has the function of one-way opening and reverse closing of the flow channel. The valve cover of the flap door can automatically open or close under the action of water flow or with a little external force to open or close the door leaf with the help of the balance function of its own counterweight; the flap cover is equipped with a pull ring to pull the pull ring, the opening angle of the cover should be greater than 60 degrees, without jamming phenomenon, and the opening and closing should be free and flexible. When the flap door is partially immersed in water, the internal pressure of the pipe is large, and the reverse pressure is relatively high When the water pressure increases, the flap door will automatically close and seal.
The matrix materials of flap door composites can be divided into metal and nonmetal. Aluminum, magnesium, copper, titanium and their alloys are commonly used in metal matrix. Non metallic matrix mainly includes synthetic resin, rubber, ceramics, graphite, carbon, etc. When the concrete reaches 50% of the design strength after the bottom plate of the hydraulic structure is poured, the integral hoisting of the gate on site is required. Compared with the traditional gate, the flap door has the following advantages: 1. It is more energy-saving (for example, no manual force is required to open and close the door); 2. Long service life (simple mechanical structure and convenient maintenance); 3. Convenient use (no manual operation is required for the switch). The flap door is composed of valve seat (valve body), valve plate, sealing ring and hinge. Circular and square water outlets are only used for one-way flow. They are compact in structure and reliable in operation. The opening and closing force comes from the water source pressure. When the water pressure inside the flap door is greater than the pressure outside the flap door, it will open; otherwise, it will be closed. Applicable media: water, river water, river water, sea water, domestic and industrial sewage application scope: suitable for water conservancy system, municipal sewage, urban flood control and drainage, sewage treatment plant, water plant, etc.