Key points for selecting floor drains

Key points for selecting floor drains

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

(2) Water seal is one of the important features of a water sealed floor drain. When selecting, it should be understood 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 selecting, it is necessary to carefully understand the manufacturer's information.

For floor drains without water seals, a water trap with a water seal depth of not less than 50mm should be installed in the drain discharge pipe. This component can be configured by the floor drain manufacturer or set by the construction unit installing the floor drain.

(3) The height of the floor drain grate can be adjusted, with a minimum adjustment of 35mm, to ensure that the elevation of the floor drain surface is level with the ground after the completion of the floor decoration. The installation of waterproof wing rings on floor drains is to meet the waterproof requirements when the drain is installed on the floor slab.

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

(4) The structure of the water sealed floor drain should be reasonable and smooth, and debris in the drainage should not easily settle down; The cross-sectional area of each part should be larger than the cross-sectional area of the discharge pipe, and the minimum net width of the flow channel section should not be less than 10mm.

(5) There are three types of connection methods for floor drains: socket connection; thread; Clamp. The size of the connection port can be determined according to current national regulations

(6) Priority should be given to using odor proof floor drains, and floor drains may not be installed in areas that do not require drainage. The construction company cannot complete the project without setting up a return water bay for the floor drain