1. The check valve should be stored in a dry and ventilated room. It is not allowed to be stored in the open air. The channels at both ends should be sealed with seals to prevent debris from entering.
2. The check valve stored for a long time should be checked regularly to remove the dirt in the inner cavity, and grease the processing surface.
3. The check valve installed and running on the pipeline should be regularly checked for normal operation. Minor faults should be eliminated in time, and major faults should be removed for maintenance. The check valve after repair and assembly should be re-sealed test. There should be detailed records for troubleshooting and overhaul.
4. The valve is not allowed to be welded or repaired under pressure, and it is not allowed to remove or replace valve parts at will.
