YS Series Vacuum Water Diversion Complete Set Of Equipment
YS series vacuum water diversion complete set is suitable for water diversion systems such as water plants, thermal power plants, steel plants, sewage treatment plants, chemical plants, water conservancy drainage and irrigation projects, marine aquaculture, etc. It can also be used for siphon loading and unloading of terminal oil depots and vacuum transportation in the food industry. , Vacuum siphon in chemical industry
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It has a variety of specifications and configurations to meet the requirements of different working conditions.
- Model representation method
- YS-A type vacuum water diversion device
- YS-B type fully automatic vacuum water diversion complete device
- YS-J type simple vacuum water diversion device
- YS-AS type vacuum water diversion device
- YS-AK type vacuum water diversion device
- YS-AT type vacuum water diversion device
- YS-AW type vacuum water diversion device
Model example: YS070-2A03
| YS | Water diversion device serial number | ||||
| 70 | Vacuum pump model | ||||
| 2 | The number represents the number of vacuum pumps in the water diversion unit | ||||
| A | Fully automatic type (vacuum direct water introduction + vacuum maintenance) | ||||
| B | Fully automatic type (vacuum direct water diversion) | ||||
| J | Simple type (direct water diversion under vacuum) | ||||
| AS | AS type unit | ||||
| AK | AK type unit | ||||
| AT | AT type unit | ||||
| AW | AW type unit | ||||
| AP | AP type unit (water diversion via ejector) | ||||
| BP | BP type unit (ejector water diversion) | ||||
| T | Special water diversion unit | ||||
| 3 | The numbers represent how many water pumps are used to divert water. | ||||
YS-A type vacuum water diversion device is used for pre-vacuuming of centrifugal pumps before starting and during operation.
Vacuum maintained.
Working principle: Two water ring vacuum pumps, one in use and one in standby, use the liquid level in the vacuum tank to automatically control the start and stop of the vacuum pump to ensure that the liquid level in the vacuum tank remains within the required range, thereby ensuring that the pump chamber is always filled with water when the water pump is on standby. It can be started at any time without delay. When the water pump is running, the pressure in the vacuum tank is adapted to the pressure in the suction pipe of the water pump, and the water in the vacuum tank can be continuously discharged. Regardless of whether the water level in the vacuum tank drops due to the escape of gas during standby or operation, the vacuum pump automatically starts. If the water diversion height of the water pump is consistent, the connecting pipe can be directly connected to the suction pool without being connected to the suction pipe.
Composition of type A device, vacuum tank (equipped with liquid level gauge and liquid level switch)
Water ring vacuum pump (2 pcs standard)
Solenoid valves, system valves and pipelines
Gas-water separator (with liquid level gauge)
Control cabinet

YS-B type fully automatic vacuum water diversion complete set of equipment can meet the vacuum water diversion requirements and realize corresponding automatic control.
After pressing the start button of the control cabinet, the normally closed solenoid valve of the evacuation pipeline opens. At the same time, the vacuum pump working pump starts and water diversion begins. After water is supplied, the water flow switch operates, the solenoid valve of the evacuation pipeline is closed, the vacuum pump stops, the feed water pump is started, the feed water pump outlet valve is opened, and the feed water pump operates normally.
If the water pump outlet valve is not an automatic valve, the valve must be closed manually before starting the vacuum pump. After the water pump starts, open the valve again.
Type B device consists of: water ring vacuum pump (2 pcs standard)
Solenoid valves, system valves and pipelines
Flow switch
Gas-water separator (with liquid level gauge)
Control cabinet

YS-J type simple vacuum water diversion device is a comprehensive set of vacuum water diversion field devices that meet automatic requirements. It mainly consists of a water ring vacuum pump, a gas-water separator, and system pipelines. Device is manually controlled. The water diversion process was manually observed, and the starting and stopping of the vacuum pump and valve switching were all manual operations.YS-J type simple vacuum water diversion device is a comprehensive set of vacuum water diversion field devices that meet automatic requirements. It mainly consists of a water ring vacuum pump, a gas-water separator, and system pipelines. Device is manually controlled. The water diversion process was manually observed, and the starting and stopping of the vacuum pump and valve switching were all manual operations.

YS-AS type vacuum water diversion device is used for pre-vacuuming before starting and maintaining vacuum during operation of centrifugal pumps. It is especially suitable for large water plants.
Working principle: Two water ring vacuum pumps, one in use and one in standby, use the pressure switch of the vacuum tank to control the start and stop of the vacuum pump to ensure that the negative pressure of the vacuum tank is maintained within the required range. The accumulated water in the vacuum tank can be used without affecting the load of the vacuum tank. Discharge under pressure. Using the negative pressure of the vacuum tank, the pump chamber is always filled with water, and the water pump can be started at any time. No need to delay booting. When the water pump is running, the pressure of the air pumping tank is adapted to the pressure of the water pump suction pipe. During standby or operation, the water level in the air pumping tank drops due to the escape of gas. The air pumping tank automatically connects to the vacuum tank to keep the liquid level at the required height. . The installation position of the water diversion device is not affected by the position of the water pump.
Composition of AS type device, vacuum tank (equipped with pressure switch and liquid level switch)
Air extraction tank (liquid level switch)
Water ring vacuum pump (2 pcs standard)
Solenoid valves, system valves and pipelines
Control cabinet

YS-AK type vacuum water diversion device is used for pre-vacuuming before starting and maintaining vacuum during operation of centrifugal pumps.
Working principle: Two water ring vacuum pumps, one in use and one in standby, use the pressure of the vacuum tank to automatically control the start and stop of the vacuum pump to ensure that the pressure of the vacuum tank remains within the required range. Under the action of the negative pressure of the vacuum tank, the air in the centrifugal pump and pipeline enters the vacuum tank through the one-way air valve. When water fills the centrifugal pump, the one-way air valve automatically closes to prevent water from entering the vacuum tank. The installation of vacuum tanks and vacuum pumps is not restricted by centrifugal pumps, and the on-site layout is convenient.
Composition of the device type AK, vacuum tank with electric contact pressure gauge
Water ring vacuum pump (2 pcs standard)
One-way air valves, solenoid valves, system valves and pipelines
Gas-water separator (with liquid level gauge)
Control cabinet

YS-AT type vacuum water diversion device is used for pre-vacuuming before starting and maintaining vacuum during operation of centrifugal pumps. It is especially suitable for media containing impurity liquids, corrosive liquids and gas-liquid mixtures, such as centrifugal pumps in cyclonic wells in steel plants.
The vacuum tank is installed on the water inlet pipe of the centrifugal pump, and the liquid level switch is used to control the opening and closing of the vacuum pump to keep the liquid level in the vacuum tank within the required range. During the standby or running stage of the pump, if the liquid level drops beyond the specified lower limit due to gas precipitation, the vacuum pump will be started. When the upper limit is reached, the vacuum pump will be shut down. Because the vacuum tank is installed on the water inlet pipe, normal use can be guaranteed even if a mixture of liquid and gas is sucked. The vacuum tank can improve the inlet water flow pattern and improve the suction performance of the water pump. Several vacuum pumps can share one air-water separator to save installation space.
Composition of AT-type device, vacuum tank with level switch
Water ring vacuum pump (standard configuration: 1, each water pump is equipped with a water diversion device)
System valves and pipelines
Tank type gas water separator
Vacuum control box

YS-AW type vacuum water diversion device is used for pre-vacuuming before starting and maintaining vacuum during operation of centrifugal pumps. Especially suitable for use in sewage treatment plants.
There are two water ring vacuum pumps, one in use and one in standby. The start and stop of the water ring vacuum pump is controlled by the electric contact vacuum gauge of the vacuum tank. The electric contact vacuum gauge sets the negative pressure range of the vacuum tank. The high and low liquid level switch of the vacuum tank controls the automatic valve of the main pipeline of the vacuum pipeline and the automatic venting valve and automatic drainage valve of the vacuum tank, so that the liquid level in the vacuum tank is always within the set range. The liquid level switch (prepared by the user) on the liquid level detection tank (prepared by the user) controls the automatic valve (prepared by the user) on the branch pipeline. When the liquid level drops to the low level switch position, the automatic valve corresponding to the evacuation branch pipeline opens. , divert water to the high liquid level switch and then close the automatic valve.
Composition of AW type device, vacuum tank (equipped with liquid level gauge and liquid level switch)
Water ring vacuum pump (2 pcs standard)
Automatic inlet opening and closing valve (optional), 1 automatic opening and closing valve for air release, 1 automatic opening and closing valve for drainage
Solenoid valves, system valves and pipelines
Gas water separator
Control cabinet

1. High efficiency and energy saving: YS series water diversion equipment uses our company’s 2BEX and 2BVX series water ring vacuum pumps, which have high efficiency and obvious energy saving effects;
2. Complete varieties: various specifications, including fully automatic and simple configurations;
3. Optimized design: The complete unit has a compact and reasonable design structure, simple installation and convenient maintenance; it is equipped with a common base, has small vibration, low noise, and safe and reliable operation.
4. Automatic control, safe and reliable: equipped with our company’s KQK control cabinet, it can realize fully automatic control of vacuum pump starting, vacuum pump stopping, water pump starting and other processes, and is easy to operate;
Generally, a vacuum pump is selected based on the air pumping volume and maximum vacuum value, and a backup pump is equipped. 2BVX and 2BEX series vacuum pumps can meet the requirements of the maximum vacuum value for water pumping, so only the air pumping volume can be calculated. The calculation method of air extraction volume recommended by water supply and drainage professionals is as follows:
Q=KQ1 +Q2/T×Hg/Hg- Zs
Q-pumping volume
m/min
K_air leakage coefficient 1.05~1.1
Q1-Air volume m in the suction pipe
Q2-pump body volume. When calculating, take the water pump suction port
Area multiplied by the distance from the suction inlet to the outlet valve
T-water diversion time, no more than 5 minutes
Hg – the water column height of local atmospheric pressure (standard atmospheric pressure water column height 10.33m)
Zs-the difference m from the water pump shaft to the lowest water level in the suction well

1. Users can determine the complete model and select a suitable vacuum pump based on the vacuuming time and system volume;
2. The performance table shows commonly used vacuum pump models. If you choose other vacuum pumps, please refer to the Shanghai Kaiquan 2BEX and 2BVX series water ring vacuum pump samples;
3. Special-shaped vacuum tanks, electronic control devices, optional vacuum pumps, interface flange sizes, etc. can be customized according to user requirements; our factory produces various series of water pumps and can select and configure them for users;
4. According to special needs, please contact us for the specific configuration of the complete set of equipment and its implementation functions.





