1. Ordinary water seal floor drain:

The national standard for the height of the floor drain water seal is 50mm, but the height of the old-fashioned bell-type water seal floor drain seal on the market is only 10-20mm, which does not have a good deodorant effect; the quality of the materials varies, and the materials such as stainless iron and zinc alloy are shoddy. Corrosion resistance is poor, and its service life is relatively short.

2. Spring floor drain: Spring floor drain is also a self-sealing floor drain, which uses the gravity of water to open, close and drain. Advantages: fast drainage. Location: spring-loaded floor drains are generally used in wash basins. Because of their fast drainage, spring self-sealing floor drains are suitable for places where drainage is not frequent or temporary, such as balconies, kitchens, washing machines, etc. Drainage place.