Storage and transportation breathing valve

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1. To ensure the proper functioning of the breathing valve, it is specified that it should be inspected regularly once a month, and every 2 hours during operations involving material movement (such as loading/unloading by vehicles or ships, tank transfer, etc.). ?2. Regularly check whether the valve discs for positive and negative ventilation operate smoothly. ?3. Check whether the valve housing mesh cover is damaged, whether the gland gasket is airtight, and whether there is freezing in winter ； ?4. Carefully check whether there is any damage to the contact sealing surfaces of the guide rod and the valve disc. ?5. During inspection and maintenance, it is necessary to ensure that all mating surfaces within the valve fit tightly together, and that the valve disc moves up and down smoothly. ?6. Keep the breather valve mesh clean and unobstructed. 7. If a malfunction is detected in the breathing valve that could affect its proper operation, it should be reported immediately to the team leader or the relevant supervisor. ?8. Keep detailed records after each inspection.