Key points for selecting floor drains

The CJ/T 186-2003 standard is only applicable to floor drains used in general industrial and civil buildings, and is not applicable to special places such as anti-wave floor drains dedicated to civil air defense projects or explosion-proof floor drains dedicated to petrochemical enterprises. For floor drains in special places, in addition to referring to this standard, they should also comply with the technical requirements of the relevant industries.

2) Water seal is one of the important features of floor drains with water seals. When choosing, it is necessary to understand whether the water seal depth of the product reaches 50mm. At present, the water seal depth of some floor drains on the market is only 10 to 20mm, which cannot effectively block the foul smell from the sewer.

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.

For floor drains without water seals, a trap with a water seal depth of no less than 50mm should be installed on the drain pipe of the floor drain. This component can be configured by the floor drain manufacturer or set up by the construction unit that installs the floor drain.

3) The height of the floor drain grate 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.

The grate strength of the floor drain located in the underground garage's car passage or in the load-bearing area should be able to meet the corresponding load.

4) 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.

5) There are three connection methods for floor drains: socket and spigot. Thread Clamp. The size of the connection port can be determined in accordance with the current relevant national regulations