How to deal with high pressure of water-based fire extinguishers?

If the pressure of water-based fire extinguishers is found to be too high, it may be caused by various reasons, such as improper pressure setting during inflation, changes in environmental temperature, and the generation of additional gas due to deterioration of the agent.

When dealing with this situation, safety is always the primary consideration. Here are some recommended steps:
1. Stop using: Once the pressure is found to be too high, immediately stop using the fire extinguisher. Overpressure fire extinguishers may not only fail to function properly, but also pose a risk of explosion.

2. Isolation storage: Move the overpressure fire extinguisher to a safe and well ventilated place, avoiding proximity to heat or fire sources, in case of accidents.

3. Professional evaluation: Contact a professional fire equipment maintenance service provider to have professionals inspect and evaluate fire extinguishers. They have the appropriate tools and knowledge to safely handle overpressure issues.

4. Pressure relief treatment: Under the guidance of professional personnel, appropriate pressure relief can be carried out. This usually needs to be done in a safe environment to avoid injury or environmental pollution caused by the spraying of fire extinguishing agents. Do not open the fire extinguisher valve without authorization to relieve pressure, in order to avoid uncontrollable consequences.

5. Recharging or repairing: If the overpressure problem of the fire extinguisher can be solved through simple pressure relief, professional personnel will carry out it on the premise of ensuring safety. If the overpressure is caused by damage or aging of internal components, more comprehensive repairs may be required, and even new fire extinguishers may be replaced.

6. Regular inspection: In order to prevent future overpressure issues, fire extinguishers should be regularly inspected, including pressure gauge readings, bottle condition, and expiration date of chemicals. Ensure that fire extinguishers are stored under suitable temperature conditions to avoid the impact of extreme temperatures.

7. Maintenance records: After each inspection and repair, there should be detailed records, including the date, operator, problems found, and measures taken. These records are crucial for tracking the health status of fire extinguishers.

Remember, always handle overpressure fire extinguishers with caution and prioritize personal safety. If unsure how to handle it, the safest approach is to contact professional personnel to intervene.