Water Circulating Vacuum Pump Desktop

Water Circulating Vacuum Pump takes circulating water as working fluid to create negative pressure by fluid jet. lt can provide negative pressure condition for the processes of evaporation, distillation, crystallization, drying, sublimation, pressure-reducing filtration and so on, particularly be suitable for labs and small scale test of industries such as universities and colleges, scientific research institutes, chemical industry, pharmacy, biochemistry, foodstuff, agrochemical, agricultural engineering, biological engineering.

DOVMXtech Water Circulating Vacuum Pump

1. The water saving effect is obvious. Because of the water circulation operation, the water added into the water tank can be used repeatedly, which overcomes the phenomenon that a large amount of water is wasted when the method of directly flushing and draining tap water is used to obtain the vacuum. According to the actual measurement, the product can save more than 8 tons of water under the condition of the same vacuum degree, and the one-time water can be used for a long time, which is lack of water source Or a laboratory with insufficient water pressure is particularly suitable.

2. Multi function comprehensive use. This machine can not only provide vacuum conditions, but also carry out water automatic external circulation at the same time, and provide circulating cooling water for the reaction device. This machine is connected with the self supplied water source, and can maintain the temperature of circulating water under the condition of continuous operation for a long time through appropriate supplement of water source, which can not only ensure the vacuum degree does not drop, but also realize the supply of circulating cooling water.

3. The pump head of the machine is directly immersed in the water without a water bottle. The whole machine is low in height, small in volume, light in weight, and easy to move. It can be placed on the workbench for easy operation and observation. The upper cover of the water tank is movable and can be opened for easy water filling and maintenance.

4. The machine is equipped with two suction nozzles, which can be used for single or simultaneous suction operation. Each suction nozzle is equipped with a suction meter, which can easily observe the vacuum degree. The suction path is equipped with a check valve, which can prevent the circulating water from flowing back to the vacuumized equipment when the vacuum operation is stopped.

5. Corrosion resistant and pollution-free. The water pump parts of this machine are made of corrosion-resistant materials. The water tank is made of ABS plastic. The one-time forming is not affected by the corrosive substances such as acid and alkali. At the same time, there is no oil pollution in the laboratory.

6. The machine works stably and reliably with low noise.

Applications:

Rotary evaporator
Evaporating system
Vacuum concentrator
Vacuum filtration
Vacuum drying systems
Medical/pharmaceutical equipments
Centrifuge
Laser-gas circulation

1、 Working principle:

The circulating water multi-purpose vacuum pump series is a vacuum pump that takes circulating water as the working fluid and uses fluid jet to generate negative pressure for injection.

2、 Scope of application:

It provides vacuum conditions for evaporation, distillation, crystallization, drying, sublimation, filtration and decompression, degassing, etc., and is especially suitable for laboratories and small-scale tests in universities, scientific research institutes, chemical, pharmaceutical, biochemical, food, pesticide, agricultural engineering, biological engineering and other industries.

3、 Product features:

This pump is a new type of desktop circulating water vacuum pump designed by our company according to the small laboratory area. Its functions and uses are the same as those of type B pump. The main body is made of stainless steel. With external circulation device, the vacuum is stable, the appearance is beautiful, small and exquisite.

(1) This machine adopts double taps and double display, which can be used alone or in parallel.

(2) The pump body and impeller are stamped with stainless steel plate, which is delicate and beautiful;

The shell, water tank, tee, check valve and air extraction nozzle are made of special engineering plastics;

The jet ejector and air extraction nozzle are made of stainless steel.

(3) It is equipped with a special fluid muffler to reduce the friction noise between gas and liquid in water and make the vacuum higher and more stable.

(4) Acid, alkali and solvent corrosion resistance.

(5) No pollution, low noise, easy to move, can also be installed according to the needs of users vacuum control valve, easy to operate.

(6) Recycle water and save precious water resources; Save more than 35% electricity than other vacuum pumps.

(7) The special motor is sealed with fluororubber by ODM, a well-known motor manufacturer. There is no corrosive gas inside the motor.

(8) Our company has also made several other related products according to the needs of the experiment. Please see the back.

(9) Transparent water tank, easy to observe water level and water quality, others are the same as WCVP-IIIS.

4、 Product advantage:

● recycle water and save water resources.

● save more than 35% power than other types of vacuum pumps.

● a special fluid muffler reduces the gas in the water and makes the vacuum higher; Reduce gas-liquid friction and noise.

● double tap, double meter display, can be used alone or in parallel.

● resistant to acid and alkali solvent corrosion.

● the motor is provided by a well-known motor manufacturer and sealed with fluororubber to prevent corrosive gas from intruding into the motor.

● the water in the water tank shall be replaced regularly to ensure the purity of water quality and the vacuum degree.

● when it is used to extract corrosive gas, the water change cycle shall be shortened.

● WCVP-III: the shell, water tank, jet, tee, check valve and air extraction nozzle are made of PP; The pump body and impeller (six channels and double seals) are made of 304 stainless steel plate.

● WCVP-IIIA: the ejector and air extraction nozzle are made of 304 stainless steel, and others are the same as WCVP-III.

● WCVP-IIIS: the pump body is made of PP, which is more suitable for acid gas. Other parts are the same as WCVP-III.

DOVMXtech-WCVP-IIIS circulating water multipurpose vacuum pump (The pump head is made of PP, which is only acid resistant but not alkali resistant)

Note: the pump body of WCVP-IIIS circulating water type multipurpose vacuum pump is made of PP, which is more suitable for acid experiments!

DOVMXtech-WCVP-III circulating water multipurpose vacuum pump (Resistant to general acid and alkali, organic solvents, Laboratory use)

DOVMXtech-WCVP-IIIA circulating water vacuum pump is made of stainless steel, which is durable.

DOVMXtech-WCVP-IIIG circulating water multi-purpose vacuum pump is anti-corrosion and internally sprayed with Teflon.

● jet injector and air extraction nozzle are sprayed with Teflon + FV rubber, and the gas pipeline is made of fluororubber.

● better corrosion resistance, reliability and longer service life.

DOVMXtech-WCVP-IV circulating water multi-purpose vacuum pump is anti-corrosion and internally sprayed with Teflon.

● multi purpose vacuum pump with the same double sides.

● expansion of SHB - Ⅲ, with the same characteristics and materials as SHB - Ⅲ.

● four taps vacuumize and four meters display at the same time, without affecting each other. Four operators can experiment at the same time, reducing the cost of the laboratory.

● it is convenient for teachers to visually demonstrate and directly monitor the experimental situation. Students can also turn on and off the machine on any side.

 
usage method:

1. Preparatory work. Place the machine flat on the workbench. When it is used for the first time, open the upper cover of the water tank and inject clean cold water (water can also be added through the drain hose). When the water surface is about to rise to the height below the overflow nozzle behind the water tank, stop adding water. Repeat the startup to stop adding 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 to keep the water in the water tank clean.

2. Vacuum pumping operation. Connect the air extraction sleeve of the equipment that needs to be evacuated to the air extraction nozzle of the machine tightly, turn off the circulation switch, turn on the power supply, and turn on the power switch to start the vacuum extraction operation. The vacuum degree can be observed through the vacuum meter corresponding to the air extraction nozzle.

3. When the machine needs to work continuously for a long time, the water temperature in the water tank will rise, which will affect the vacuum degree. At this time, connect the drain hose with the water source (tap water)

When connected, the overflow nozzle is used as the drain outlet, and the flow of tap water is properly controlled, the water temperature in the water tank can be kept from rising, and the vacuum degree can be stabilized.

4. When it is necessary to provide cooling circulating water for the reaction device, on the basis of the operation in Item 3 above, connect the water inlet and outlet pipes of the device to be cooled to the circulating water outlet and inlet nozzles at the rear of the machine respectively, and turn the circulating water switch to the on position to realize the supply of circulating cooling water.

循环水式多用真空泵常见故障及排除方法

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