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Classification of floor drains.

2023-07-22
1. New water-sealed floor drain
The water-sealed floor drain is a floor drain that uses the bell or sleeve device in the water storage chamber to form an "N" shape or "U" shape water storage bend, and relies on the water seal to isolate the odor and bacteria in the drainage pipe to achieve the odor prevention effect. The national standard stipulates that the water seal height is not less than 50mm.

2. Eccentric block type floor drain
Use a sealing gasket, fixed with a pin on one side, add a lead block, and use the principle of gravity eccentricity to seal. This structure was initially horizontal, and later evolved into vertical, vertical with water seals. When the water is drained, the gasket opens under the action of water pressure, and when the water is drained, the gasket closes under the action of gravity of the lead block.

3, spring type floor drain
Seal by stretching the gasket at the lower end of the seal core with a spring. When there is no water or little water in the drain, the gasket is stretched upward by the spring to close the pipeline. When the water in the drain reaches a certain height and the gravity of the water exceeds the spring elasticity, the spring is compressed downward by the water, and the gasket opens and automatically drains the water.

4. Magnet type floor drain
The structure of the floor drain is similar to the spring type, and the sealing pad is sealed by the magnetic force of two magnets. When the water pressure is greater than the magnetic force, the sealing pad opens down and drains, and the drainage ends. The water pressure decreases. When the water pressure is less than the magnetic force, the magnet block absorbs and the sealing pad pulls up.

5. Gravity floor drain
It does not need water seal, does not use springs, magnets and other external forces, and uses the balance relationship between the gravity of the water flow and the floating ball inside the floor drain to automatically open and close the seal cover. This mode is similar to spring mode, except that the elastic force is converted into buoyancy to drive the mechanical pull.

6, silicone floor drain

Use two thin pieces of silicone or a silicone bag with an open bottom to seal. The bottom of the silica gel is opened by water during drainage. After drainage, the opening of the silica gel bottom will automatically fit due to residual water to achieve deodorization effect.


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