Replacement steps
      1. Preparation: Determine the butterfly valve that needs to replace the sealing ring, make sure the valve is closed, and close the inlet and outlet pressure pipes.
      2. Disassemble the sealing ring: Use a special tool to remove the sealing ring of the butterfly valve. During the disassembly process, pay attention to protect the sealing surface of the butterfly valve and the valve shaft part to avoid damage.
      3. Clean the installation part: Clean the dismantled valve sealing surface and valve shaft part, and clean the installation part to ensure cleanliness.
      4. Install the new sealing ring: According to the installation standard of the sealing ring, select the appropriate tool to install the new sealing ring on the butterfly valve. Pay attention to the direction and position of the seal to ensure that it is installed correctly.

      5. Check the sealing effect: After installing the sealing ring, check it to ensure that the sealing ring is installed correctly and the sealing effect is good.

Precautions
      1. Choose the right sealing ring: When replacing, you need to choose a sealing ring with the material and specification that matches the butterfly valve to ensure that the sealing effect is good.
      2. Pay attention to the strength of disassembly and installation: When disassembling and installing the sealing ring, pay attention to the strength and avoid excessive or small force, resulting in damage to the valve or poor sealing effect.
      3. Confirm the status of the valve: Confirm that the butterfly valve is in a closed state before replacing, and close the inlet and outlet pressure pipelines to avoid danger.
      4. Safety protection: In the process of replacement, pay attention to safety protection measures to avoid accidents.
      5. Special precautions for electric butterfly valves: For electric butterfly valves, it is necessary to ensure that the valve is completely closed and the power supply is disconnected to avoid safety accidents caused by improper operation.
      6. Special precautions for butterfly valves: Special care should be taken during the disassembly and installation of butterfly valves to avoid damage to key components such as gearboxes.