How to use the circulating water vacuum pump correctly

Circulating water vacuum pump, also known as water ring vacuum pump, is a vacuum pump
.
It can obtain a vacuum of 2000-4000 Pa, and a tandem atmospheric injector can reach 270-670 Pa
.
The water ring pump can also be used as a compressor, called a water ring compressor, which is a low-pressure compressor with a pressure range of 1-2X105 Pa gauge pressure
.
How to use: 1.
Preparation
.
The circulating water is mostly placed flat on the table with a vacuum pump, when used, open the upper cover of the tank to inject clean cool water (you can also add water through the discharge hose), stop adding water when the water surface is about to rise to the height under the overflow nozzle behind the water tank, and repeat the start to no longer add water
.
Replace the water at least once a week, if the water quality is seriously polluted and the utilization rate is high, the time for replacing the water must be shortened and the water quality in the tank should be kept clean
.
2.
Vacuum operation
.
The suction sleeve of the equipment that needs to be evacuated is tightly connected to the suction nozzle of the machine, the circulation switch is turned off, the power supply is turned on, and the power switch is turned on, and the vacuum can be started by the vacuum meter corresponding to the suction nozzle
.
3, when the circulating water multi-use vacuum pump needs to work continuously for a long time, the water temperature in the water tank will rise, affecting the vacuum, at this time, the water discharge hose can be connected with the water source (tap water), the overflow nozzle as a drainage outlet, the appropriate control of tap water flow, you can keep the water temperature in the tank does not rise, so that the vacuum degree is stable
.
4.
When it is necessary to provide cooling circulating water for the reaction device, on the basis of the operation of the preceding article 3, the inlet water and outlet pipe of the device that need to be cooled are respectively connected to the circulating water outlet and inlet nozzle of the rear of the machine, and the circulating water switch is rotated to the ON position, and the circulating cooling water supply
can be realized.