The core of routine maintenance for explosion-proof pressure cookers lies in regularly inspecting key safety components, keeping them clean, and promptly replacing worn parts to ensure that their multiple safety systems (such as pressure relief valves, safety valves, and sealing rings) are always in reliable condition.
Inspection and Maintenance of Key Safety Components
Sealing Ring (Main Sealing Ring on the Lid)
Function: Ensures a high-pressure seal between the pot body and the lid, preventing air leakage, and assists in pressure relief to prevent explosion in case of overpressure.
Maintenance Recommendations: Remove and clean the sealing ring promptly after each use to avoid grease residue accelerating aging.
Regularly check for hardening, cracking, or loss of elasticity; replace immediately if any problems are found.
National standards recommend that the storage period for sealing rings should not exceed 3 years from the date of manufacture; those used for extended periods should be replaced periodically.
Pressure Relief Valve and Safety Valve
Pressure Relief Valve: Controls the working pressure inside the pot by venting air. Do not block or pressurize with heavy objects during use.
Safety Valve: As a second safety measure, it automatically releases pressure to prevent explosion when the pressure relief valve fails.
Maintenance Method: Check the vent before and after each use to ensure it is clear. It can be rinsed with water and dried.
Prevent food residue from clogging the vent pipe. Some models are equipped with an anti-clogging cover, which can be disassembled and cleaned for maintenance.
Float Valve and Pressure Relief Window: The float valve indicates whether there is pressure inside the pot, ensuring the lid cannot be opened until the pressure is completely released.
The pressure relief window is an automatic pressure relief device for extreme situations. It must be kept unobstructed and free of oil.