1. Maintenance and inflation of storage bottle of heptafluoropropane fire extinguishing device

　　1. Disassemble the gas cylinders and drive cylinders that need to be repaired and filled with heptafluoropropane, including the valve parts and valve drive devices on each cylinder; dismantled by professional regular manufacturers, transported to the factory, and started the storage cylinder of heptafluoropropane gas fire extinguishing device and N2 The bottle is tested and pressure tested (repeatedly tested), and the leakage and damage are repaired;

　　2. The electromagnetic drive device replaces the new diaphragm and restores the original working state

　　3. Replace the sealing diaphragm to restore the container valve to a working state

　　4. Check whether the check valve is reset

　　5. Refill Heptafluoropropane HFC-227EA as required, the equipment is fixed firmly, the high-pressure pipe of all connecting parts, and the connection of the starting pipe must be installed correctly to ensure that the seal 6. The bottle group and each component are restored to their original positions, and re-commissioning reaches normal use

　　7. Bottle body weighing inspection, appearance inspection, sealing inspection, paste filling certificate.

　　8. Send the overhauled and filled gas cylinders back to the protection zone and install them in place; re-adjust the cylinder group to restore the normal working state.

　　2. Disassembly and assembly safety matters are as follows:

　　1. Professional and technical personnel should be instructed. 2. When disassembling the gas cylinder with a pipe network, the power supply should be cut off first, and the pipe network connecting the driving cylinder and the gas cylinder should be disconnected. The bottle head valve and pressure gauge should avoid collision and be well protected.

　　3. Precautions for product maintenance and inspection:

　　The maintenance of the storage bottle of the gas fire extinguishing device and the filling of the agent must be tested and tested by a qualified professional manufacturer with a professional testing instrument, and the test report and certificate of the manufacturer's water pressure and tightness test can be used before it can be used. Non-professional manufacturers are not allowed to issue test reports.