The fixed cone valve should be cleaned, rusted and painted regularly. The cylinder and hydraulic station of the cone valve should be regularly inspected and refueled. The sealing ring and water stop rubber should be regularly checked and replaced to ensure that the valve can operate normally. So when we all use fixed cone valves, how do we generally need to use this fixed cone valve? The instructions for the use of the fixed cone valve are as follows: 1. Before installing the fixed cone valve, the user must check the valve model, connection size and pay attention to the flow direction of the medium to ensure consistency with the valve requirements. 2. When installing the cone valve, the user must reserve the necessary space for the cone valve drive. 3. The wiring of the drive device must be carried out according to the wiring diagram. (Refer to the manual of the electric device for details) 4. If there is a diversion cover, add support under it to prevent the diversion cover