ZF series vacuum pump station (also known as vacuum devices, vacuum stations, etc. occur) is one or two sets of water ring vacuum pump as vacuum equipment, vacuum canister vacuum storage devices as a complete system. Under heavy use of the vacuum source and the required amount of exhaust too big occasions, the system than the direct use of a vacuum pump significant energy savings, and effectively improve the vacuum pump life. The device can provide a vacuum source for medical gas central station for all types of domestic and medium-sized hospitals, and widely used in vacuum forming chemical and pharmaceutical industry vacuum station, light industry, canning systems, automotive industry, rubber and plastic engineering parts, Coal mine impregnated with flame-retardant conveyor belt and the foundry industry (V method, VRH, V-EPC) of the vacuum source and the like. How it works: one, two vacuum pumps first set upper and lower limits of the system (such as the upper limit is set to -0.08MPa, the lower limit is set to -0.06MPa), after starting the system, in which a vacuum pump to work until the vacuum tank vacuum reaches the upper limit -0.08MPa, this time the vacuum pump automatically stops running, the vacuum tank vacuum automatic cut-off by the vacuum check valve, vacuum tank as a result of the work demands a degree of vacuum falls below the lower limit When -0.06MPa, the other pump automatically starts, until the degree of vacuum of the vacuum tank evacuated -0.08MPa until the upper limit, so the cycle is repeated automatically, the degree of vacuum in the vacuum tank is always maintained between the upper and lower limit . When demand for gas as a result of the work of a large vacuum tank vacuum is below the lower limit over a certain time, and a single degree of vacuum pumps can not be pumped to the tank above the lower limit, the other pump will start automatically until it exceeds the upper limit. Two pumps can also be switched to manual start and stop. 2, a vacuum pump first set upper and lower limits of the system (such as the upper limit is set to -0.08MPa, the lower limit is set to -0.06MPa), after starting the system, the vacuum pump pumped limit automatic shutdown, the system vacuum degrees below the lower limit automatically. Vacuum pump can also manually start and stop. Features: This device since the first start, the entire process can be run to achieve automatic control. Course of their work, the degree of vacuum in the vacuum system throughout the always fluctuated within its allowed range, the fluctuation range can be adjusted according to user requirements. If there is a vacuum of less than the setting value, the alarm will warn. The device in the absence of operating conditions of the system for automatic control, power can be automatically closed when the vacuum system. The device is equipped with a gas-water separator, which can save water and reduce environmental pollution. Vacuum tank of the device according to the site design for the horizontal and vertical structure, more flexible installation.