Pipe butterfly valve: An anti-reverse valve installed at the end of drainage pipes, featuring a function to prevent backflow of external water. The valve mainly consists of four parts: valve seat, valve plate, water seal ring, and hinge. It comes in two shapes: round and square. Traditionally made of various metal products, the material of butterfly valves has now evolved into various composite materials.

The shutter has the following advantages over traditional gates: 1. More energy-efficient (such as no need for manual force to open/close the door) 2. Longer service life (simple mechanical structure, easy maintenance) 3. Easy to use (no manual operation required)

Working Principle

The flap gate consists of four parts: valve seat (body), valve plate, sealing ring, and hinge. It is used exclusively for circular and square outlets with unidirectional water flow. The structure is tight, reliable in operation, and does not require manual operation; the opening and closing force comes from the water pressure source. When the water pressure inside the flap gate is greater than the pressure outside, it opens; conversely, it closes. Applicable Media: Water, river water, lake water, seawater, domestic, and industrial wastewater. Application Range: Suitable for hydraulic systems, municipal wastewater treatment, urban flood prevention and drainage, wastewater treatment plants, waterworks, etc.