Multi-functional exacting tanks The device is to service at such industries as china traditional drug, foodstuff and chemistry for the technologies such as normal pressureíómini pressure, water decocting, warm immersion, thermal circumfl uence, compelled recycle and leakage, extraction of aroma oil and reclamation of organic solvent with the features of high efficiency and convenient operation. The cip cleaning system inside the tank meets with the gmp standard. With single gas cylinder and lock with dual-gas cylinder accompanied with a secure gas-lock cylinder. The complete device is easy to start and has a reliable self-lock performance. The programmed control eliminates the leakage or detachment caused from the unstable gas pressure for traditional structure with omplete security.