Steel gate valves feature an overhead-mounted structure, reducing the number of connecting bolts within the valve body under high pressure and large diameter conditions, enhancing the valve's reliability and overcoming the impact of system weight on the valve's normal operation. Application range:
Steel gate valves are widely used in pipelines for coal chemical, petrochemical, rubber, papermaking industries, serving as分流合流 or directional change devices for mediums.
Steel flap gates are a type of check valve, primarily installed at the end of drainage pipelines to prevent backflow of external water. Materials include stainless steel, carbon steel, cast iron, and more.
Steel flap gates are a type of one-way valve installed at the outlet of drainage pipes along riversides. When the river or tidal level is higher than the outlet of the pipe and the pressure exceeds the pressure inside the pipe, the flap gate panel automatically closes to prevent the river or tidal water from reversing into the drainage pipeline.
The steel flap gate serves the function of unidirectional opening in the forward flow and closing in the reverse direction. The valve cover of the flap gate utilizes its self-weighted balance to automatically open or close the gate leaf under the action of water flow, or with slight external force to open or close the gate leaf; a pull ring is installed on the flap cover, and pulling the ring should allow the cover to open by more than 60 degrees without any jamming, ensuring smooth and flexible operation. When the flap gate is partially submerged in water and the internal pressure of the pipeline is high with low reverse pressure, the gate permits a certain amount of leakage. When the river pressure increases, the flap gate will automatically close and seal.
Steel flap gates are used for overflow and check valve purposes in various pipelines and water channels for drainage and wastewater treatment projects. They can also be used as covers for various manholes, and are exclusively designed for outlets with one-way water flow.