1. First of all, the valve of the heat preservation barrel of the braised pork pot can be cleaned and deslagging.

2. Secondly, if the valve of the heat preservation barrel of the braised pork pot is blocked, you can open the external steam or steam gate valve.

3. Finally, if the valve of the heat preservation barrel of the braised pork pot is blocked, a gas filtering pressure reducing valve can be installed on the pneumatic valve pipeline in front of the positioner.