Gongyi Yuhua desktop circulating water vacuum pump is based on the circulating water multi-purpose vacuum pump. According to the small laboratory area, with reference to the Japanese bench pump, it adopts a one-time molded casing and is reduced in volume. It belongs to the water vacuum pump. The desktop circulating water vacuum pump adopts the jet principle, which has the characteristics of small volume, light weight, beautiful appearance and reasonable price. The front side of the small circulating water vacuum pump with two taps and two taps is as shown in the right figure, which is double pumping and double exhausting. Circulating water switch and inlet and outlet; four-table four-tap, double-sided identical multi-purpose vacuum pump, not only allows teachers to visually demonstrate, but also allows students to turn on and off on either side. Use of benchtop circulating water vacuum pumps: 1. When using, open the upper cover of the water tank to take out the soft connecting pipe, connect the two connecting ports on the back of the water tank, and inject clean cold water. When the water surface is about to rise to the height below the overflow nozzle of the water tank, stop adding. Turn on the power switch to use. Repeat the boot to add no water. However, zui changes the water every week for a long time. If the water pollution is serious and the usage rate is high, the time for replacing the water can be shortened. The final purpose of Zui is to keep the water in the water tank clean. 2. Vacuuming operation, close the suction sleeve of the equipment that needs to be vacuumed to the suction nozzle of the machine, check that the circulating water switch should be closed, turn on the power, turn on the power switch, and start vacuuming. The vacuum gauge corresponding to the suction nozzle can observe the degree of vacuum. 3. When the machine needs to work continuously for a long time, the water temperature in the water tank will rise, affecting the degree of vacuum. At this time, the water discharge hose and the water source (tap water) can be connected, the overflow nozzle is used as a drainage outlet, and the tap water is properly controlled. The flow rate can keep the water temperature in the water tank from rising and the vacuum is stable. 4. When it is necessary to provide cooling circulating water for the reaction device, the water inlet and outlet pipes of the device to be cooled are respectively connected to the circulating water outlet nozzle and the water inlet nozzle at the rear of the machine, and the circulating water switch is turned ON. A circular cooling water supply is available. Benchtop circulating water vacuum pump performance characteristics: 1. Newly improved anti-corrosion four taps, which can be used separately or in parallel, with four vacuum gauges. 2, corrosion resistance, no pollution, low noise, easy to move, can also be installed according to user needs vacuum degree control valve. 3, desktop circulating water vacuum pump, can have four students at the same time to carry out chemical experiments to reduce the experimental space. 4. The movement is made of stainless steel and anti-corrosion materials. Because the production cost is different, the price is different. Please pay attention to the instructions when purchasing. 5. In order to prevent the water temperature of the desktop circulating water vacuum pump from being too high and the vacuum degree to decrease after working for a long time, an ice hole is specially added, and the ice is used when the water temperature is too high and the vacuum degree is lowered. 6. The desktop circulating water vacuum pump adopts double taps, which can be used separately or in parallel. It is equipped with two vacuum gauges and a circulating water switch on the back. When the circulating water switch is turned on, the water outlet will spray water out of the water tank for external use. cycle.
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