The interface is the connection between the hose and the hose, fire pump, fire hydrant, and mobile water monitor. Mainly have hose interface, pipe thread interface, valve cover, internal thread fixed interface, external thread fixed interface, reducing interface, special-shaped interface, etc. The precautions in its use are:

① When using or storing, avoid falling, bumping and heavy pressure to prevent deformation and difficult assembly and disassembly.

②Before connecting, check the chute and the sealing part carefully. If there is debris such as sludge and sand, it must be removed to avoid poor sealing and difficult assembly and disassembly.

③When connecting the internal button interface, insert the buckle claw into the chute and then screw it in place in a clockwise direction. When connecting the water belt, you need to straighten the water belt, and twist the waterproof belt to make the interface detach by itself.

④ When connecting the plug-in interface, insert it until you hear the sound of the spring pin of the female interface extending to the card slot of the male interface to ensure reliable connection.

⑤ Avoid contact with acidic, alkaline and other chemicals during storage to prevent corrosion of metal parts and deterioration of rubber seals.