1, may be the cylinder piston ring on the sealing ring is damaged.
2, may be the gasket with the outlet between the rust or debris, so that there is no way to close.
3, there may be holes in the blowpipe or a faulty spool, you need to find a professional to repair or replace with a new one.
Sterilization pot, also known as steam sterilizer, is mainly the use of electric wire heating water to produce steam, and can maintain a certain pressure of the device. Applicable to medical and health care, scientific research, agriculture and other units, medical equipment, dressings, glassware, solution media, etc. for disinfection and sterilization, is the ideal equipment.