1. The pressure relief valve is blocked, the working pressure can not be discharged normally.

We all understand that the pressure cooker is constructed with a pressure relief valve, after a period of time, because the daily ingredients will be with sediment and other chemicals, it is very easy to clog the pressure relief valve and discharge holes, once blocked words, it is very likely that the high pressure inside the pot is difficult to discharge, if the long-term high temperature steaming, the pressure inside will continue to build up, and once the pressure cooker's load-bearing If the pressure cooker has reached its limit, it will explode.

Therefore, we should pay special attention to checking the gas eyes and the parts of the pressure relief valve when applying the pressure cooker. Pressure relief valve parts, to see if there is a blockage, there must be cleared immediately.

2. worn out, aging.

Some pressure cookers have long been used for a long time, even if the pressure relief valve is not clogged, there are other problems of their own, such as spare parts loose, poor sealing these.

In the case of the adoption of this worn-out pressure cooker can not keep the pressure inside the pot, but will be accompanied by the expansion of the temperature, continue to squeeze the pot of each component, once the loose aging components fall or from the situation can not withstand the force, of course, will be "boom" sound bigger.

So in the case of the application of pressure cooker, but also pay attention to the maintenance of the pressure cooker, to prevent overload application, if the pressure cooker is aging, please immediately dismantle and replace, do not overly thrifty and frugal in turn led to a more serious economic losses.

3. Rubber ring aging, poor sealing, resulting in pressure cooker internal gas pressure imbalance.

Rubber and plastic products applied for a period of time, more or less will have aging problems. And the aging of the rubber ring, the tightness will decline. The original standard air pressure can be properly controlled in the pot of rubber ring, aging, there is likely to be part of the leakage problem. If the overall leakage is okay, the internal gas pressure can be maintained in a dynamic equilibrium situation, but a large number of cases they are uncontrollable to a perspective leakage, resulting in part of the gas pressure is too strong, desperately squeezing that part. Eventually, the pressure cooker will burst from that part

Therefore, the pressure cooker rubber ring in the application of one or two years later, it is best to immediately carry out the demolition and replacement.