DN450-600 groove gate valveDetailed product description：

The DN450-600 groove gate valve is produced by introducing high-tech rubber and valve manufacturing technology from Europe, overcoming defects such as rubber aging and rust. The valve utilizes the compensating effect of slight elastic deformation generated by the elastic gate plate to achieve good sealing effect. The groove gate valve is produced by introducing high-tech rubber and valve manufacturing technology from Europe, overcoming defects such as rubber aging and rust. This valve utilizes the compensating effect of slight elastic deformation generated by the elastic gate plate to achieve good sealing effect. The valve has significant advantages such as lightweight opening and closing, reliable sealing, good elastic memory, and long service life. The product is widely used as a regulating and shut-off device on pipeline lines in industries such as tap water, sewage, seawater, water treatment, environmental protection, construction, fire protection, petroleum, chemical, power, food, medicine, textile, shipbuilding, energy, etc.

Generally, after flushing the pipe with water, foreign objects such as cement blocks and iron filings tend to accumulate in the groove at the bottom of the valve, which can easily cause leakage due to the inability to close tightly. The bottom of the elastic seat sealed gate valve adopts the same flat bottom design as the pipeline, which is not easy to cause foreign matter accumulation and allows the fluid to flow smoothly.

The DN450-600 groove gate valve body is precision cast, and the precise geometric dimensions ensure the sealing of the valve without the need for any internal processing.
The valve plate is coated with high-quality rubber both inside and outside, and the first-class rubber vulcanization technology in Europe ensures precise geometric dimensions of the vulcanized valve plate. The rubber is firmly attached to the ductile iron valve plate, which is not easy to fall off and has good elastic memory.

Due to the use of three "O" ring sealing designs for the valve stem and valve cover, friction resistance during switching can be reduced, water leakage can be greatly reduced, and the sealing rings can be replaced without stopping the flow of medium in the pipeline.
Due to the non-toxic epoxy resin coating inside the valve body, the inner and outer surfaces of the valve plate are completely covered with rubber without the occurrence of molten iron or corrosion, making it suitable for drinking.
DN450-600mm， An additional labor-saving device can be installed, which requires about 1/2 of the normal torque. With only a small handwheel, it can be fully opened or fully closed under pressure. The labor-saving device needs to fully open the valve before restoring its labor-saving function with each action.