1. When the gas self-closing valve in front of the stove is closed, check whether the gas meter is still rotating. If it does, it means there is a leak in the gas pipeline. Use soapy water to detect leaks at specific locations before handling. 2. If there is no leakage, ask the gas company personnel to check whether the gas is over-pressure or under-pressure. If there is such a situation, let the gas company personnel handle it.

1. When the gas self-closing valve in front of the stove is closed, check whether the gas meter is still rotating. If so, it means there is a leak in the gas pipeline. Use soapy water to detect leaks at specific locations before handling.

2. If there is no leakage problem, ask the gas company personnel to check whether the gas is over-pressure or under-pressure. If there is such a situation, let the gas company personnel handle it.

3. If there are no problems mentioned above, it may be a problem with the product itself. You can consult the manufacturer. It should be noted that when purchasing a gas self-closing valve, the trademark must be certified.

The safety valve plays a role in safety protection in the system. When the system pressure exceeds the specified value, the safety valve opens and discharges part of the gas in the system into the atmosphere so that the system pressure does not exceed the allowable value, thereby ensuring that the system does not cause an accident due to excessive pressure. Safety valve is also called relief valve. Several typical structural forms of safety valves. Piston type safety valve, the valve core is a flat plate. The air source pressure acts on piston A. When the pressure exceeds the safety value determined by the spring force, piston A is pushed open, and a part of the compressed air is discharged from the valve port into the atmosphere; when the air source pressure is lower than the safety value, the spring drives The piston moves down, closing the valve.