Water ring pumps are made for pumping not only water, but also oils. Some models are widely used in the perfumery field. There are also modifications that are in demand at enterprises for the processing of dairy products. The main parameters of the devices include engine power, fluid density, and threshold pressure.
Water ring vacuum pump: working principle
The principle of operation of a water ring type pump is based on the rotation of the plates. Due to this, a lot of pressure is created inside the chamber of the device. The stator is used to rotate the shaft. For pumps, the fitting is installed with a head. In order for the pipe to be firmly fixed, there is a protective ring. Fluid enters the pump chamber through the inlet. After running, it enters the channel. Finally, all liquid is pumped through the nozzle.
Pump type NSU-3/0, 35
The specified liquid ring vacuum pump is used for pumping oils. The principle of operation of the device is based on a gradual increase in pressure inside the chamber. Tot althe model has five plates. The drive shaft is installed with a diameter of 2.3 cm. In this case, the pushers are provided with a head. The model is ideal for pumping water. The engine of this pump is set to 3.4 kW.
The sleeve is located at the base of the shaft. The allowable liquid density is 4 lm. The limiting pressure of the device is 10 MPa. In order to monitor the operation of the pump, a pressure gauge is installed. The weight of this model is 55 kg. You can buy the presented water ring vacuum pump for 22 thousand rubles.
VVN 2-50M device
The specified liquid ring pump is used to pump liquid of low density. The principle of operation of the model is based on an increase in pressure due to the rotation of the plates inside the chamber. A device with two pushers is produced. In total, there are four plates in the case. The drive shaft is set to 3.2 cm. The nozzle outlet is 4.3 cm. The total length of the drive shaft is 22 cm.
The device withstands a threshold pressure of 12 MPa. The protective ring of the model is used with a seal. The inlet is small in diameter. The body of the presented pump is made entirely of cast iron. The allowable liquid density is 3 lm. You can buy a water ring pump VVN 2-50M for 24 thousand rubles.
Dairy models
For dairy products, the liquid ring vacuum pump is sold in two chambers. The device is ideal for pumping water. In this case, the plates are located at an angle of 12 degrees. The drive shaft of the models is provided with a rod. The allowable liquid density level is 5.5 lumens.
The threshold pressure of the device is 15 MPa. In total, the models have one bar. The plates in this case are at an angle of 12 degrees. In total, the pumps have two pairs of pins. Their fasteners are made of steel. You can buy a water ring pump for dairy products for 18 thousand rubles.
Devices for fat and oil products
Pumps of this type are produced with high power motors. If we consider modifications to three plates, then their drive shaft is used by 2.2 cm. In this case, the allowable density of the liquid is 5 lm. The threshold pressure of the devices is 10.2 MPa. The chambers of many models are designed for 4.5 liters.
Pumps of this type are quite different in performance. If we consider modifications to five plates, then their density index is 14 lm. In this case, the threshold pressure parameter fluctuates around 22 MPa. You can buy a high-quality water ring pump of this type for 35 thousand rubles.
Features of models for the production of confectionery
Pumps for the production of confectionery products are characterized by volumetric chambers. The pushers in the devices are located behind the head. In this case, the plates are located at an angle of 15 degrees. The admissible density level of the substance is 10 lm. The threshold pressure pumps withstand on average 13MPa. If we consider modifications to three plates, then they are produced with short drive shafts. In this case, the supports are at a low angle.
It is also important to note that there are modifications with rods on the market. Two protective rings are installed at the outlet pipe. The principle of operation of the device is based on the rotation of the shaft. Motors for this are used with a power of 3 kW. There are also five-plate pumps on the market. Their angle of inclination is no more than 13 degrees. The threshold pressure of devices of this type is kept at 15 MPa. It is also important to note that the allowable density of a substance fluctuates around 8 lm. This type of water ring vacuum pump (market price) costs about 30 thousand rubles.
Pumps for fruits and vegetables
The water ring pump of this type is produced with a reinforced shaft. In this case, the bar is installed with a steel support. Many modifications of this type are made for two outlet pipes. If we consider the pump on three plates, then it has a filter for drying. Many models of this type are equipped with plugs. The motor is installed behind the rotor. Its power is not more than 5 kW. Performance in this case depends on the volume of the chamber.
If we consider a water ring pump with four plates, then it has a crank drive. On average, the drive shaft is used by 2.2 cm. Thus, the pump performance fluctuates around 300 cubic meters. meters per hour. It is also important to note that devices with three outlets are available. The pump of this type costs about 32 thousand rubles.rub.
Pumps in the cosmetic industry
The pump of the specified type can be produced on two plates. In this case, the rotor is used with a diffuser. The average motor power is 4 kW. Thanks to this, the performance parameter is kept at the level of 200 cubic meters. meters per hour. Many pumps have filters for drying. The volume of the chamber averages 4.5 liters. It is also important to note that the models are equipped with pressure gauges.
The threshold pressure of devices does not exceed 10.3 MPa. The indicator of the permissible density of a substance is 8 lm. If we consider a pump with four plates, then it uses a 6 kW motor. The threshold pressure index of the devices is about 12 MPa. You can buy a pump of this type at a price of 35 thousand rubles.
Perfume production models
The pump of this type is produced with one rod. Motors are installed on devices, as a rule, of a collector type. If we consider the pump on three plates, then it has a diffuser. On average, the threshold pressure parameter does not exceed 20 MPa. It is also important to note that performance depends on the volume of the main camera. For models with three plates, it is set to 4 liters.
If we consider a pump with five plates, then it uses a drive rotor. As a rule, the bar is installed in the rear of the case. The motor of the models is used for 12 kW. On average, the threshold pressure does not exceed 5 MPa. Alsoit is important to note that the allowable density level is about 25 lm. There are also modifications for six plates on the markets.
They use chambers for 3 liters. The outlet pipes in the devices are located at the rear of the structure. Motors are most often used collector type. The power rating of the devices is 7 kW. At the same time, the permissible pressure parameter fluctuates around 13.5 MPa. You can buy a pump of this type for 24 thousand rubles.
