Generally, stainless steel floor drains are used in most floor drains. When choosing a water-sealed floor drain, it is necessary to know whether the water seal depth of the product reaches 50mm. Side-wall floor drains, floor drains with mesh frames and sealed floor drains generally do not have water seals. Most anti-overflow floor drains and multi-channel floor drains are equipped with water seals. When choosing them, it is necessary to understand the specific information provided by the manufacturer clearly.

If it is a floor drain without water, a trap with a water seal depth of no less than 50mm needs to be installed on the floor drain's drainage pipe. The components at this position can be configured by the floor drain manufacturer or set up by the construction unit that installs the floor drain. The height of the floor drain grate surface can be adjusted, with an adjustable height of no less than 35mm to ensure that the floor drain surface elevation is level with the ground after the floor decoration is completed. The installation of waterproof wing rings on the floor drain is to meet the waterproofing requirements when the floor drain is installed on the floor slab.

Some floor drains are installed in public places, while others are in places that bear heavy loads such as underground garages and car lanes. The strength of their grates should be able to meet the corresponding load requirements. The structure of the floor drain with water seal should be reasonable and smooth, so that the debris in the drainage is not easy to settle down. The cross-sectional area of each part for water passage should be larger than that of the discharge pipe, and the minimum clear width of the flow channel cross-section should not be less than 10mm.