Screw Water Ring Vacuum Pump Unit - China Suppliers and Factory for Enhanced Vacuum Solutions
01
High vacuum
Ultimate vacuum degree 267Pa - 0.5Pa
02
Large pumping capacity
Pumping capacity 30L/S - 20000L/S
03
Energy saving
5.5KW - 180KW
04
Wide application range
Suitable for chemical, pharmaceutical, oil, new energy, distillation, rectification, PET sheet extrusion and other processes
Product Parameters
| Unit Model | Pump Model | Draw Rate (L/S) |
Absolute Vacuum (Pa) |
Total Power (KW) |
|
|---|---|---|---|---|---|
| Main Pump | Pre-stage Pump | ||||
| JZJ2B30-1 | ZJP30 | 2BV5110 | 30 | 267 | 5.5 |
| JZJ2B70-1 | ZJP70 | 2BV5111 | 70 | 7 | |
| JZJ2B150-1 | ZJP150 | 2BV5131 | 150 | 14 | |
| JZJ2B300-2 | ZJP300 | 2BV5161 | 300 | 19 | |
| JZJ2B300-1 | ZJP300 | 2BE1 202 | 300 | 26 | |
| JZJ2B600-2 | ZJP600 | 2BE1 203 | 600 | 44.5 | |
| JZJ2B600-1 | ZJP600 | 2BE1 252 | 600 | 52.5 | |
| JZJ2B70-2.1 | ZJP70 | ZJP30/2BV5110 | 70 | 25 | 7 |
| JZJ2B150-2.1 | ZJP150 | ZJP70/2BV5111 | 150 | 10 | |
| JZJ2B300-2.1 | ZJP300 | ZJP150/2BV5131 | 300 | 18 | |
| JZJ2B600-2.2 | ZJP600 | ZPJ300/2BV5161 | 600 | 26.5 | |
| JZJ2B1200-2.2 | ZJ1200 | ZJP600/2BE1203 | 1200 | 55.5 | |
| JZJ2B1200-2.1 | ZJ1200 | ZJP600/2BE1252 | 1200 | 63.5 | |
| JZJ2B2500-2.1 | ZJ2500 | ZJ1200/2BE1303 | 2500 | 133 | |
| JZJ2B5000-4.1 | ZJ5000 | ZJ1200/2BE1303 | 5000 | 176 | |
| JZJ2B70-2.1.1 | ZJP70 | ZJP30/ZJP30/2BV5110 | 70 | 0.5 | 8.5 |
| JZJ2B150-2.2.1 | ZJP150 | ZJP70/ZJP30/2BV5110 | 150 | 10 | |
| JZJ2B300-2.2.1 | ZJP300 | ZJP150/ZJP70/2BV5111 | 300 | 14 | |
| JZJ2B600-2.2.1 | ZJP600 | ZJP300/ZJP150/2BV5131 | 600 | 23.5 | |
| JZJ2B1200-2.2.2 | ZJ1200 | ZJP600/ZJP300/2BV5161 | 1200 | 37.5 | |
| JZJ2B1200-2.2.1 | ZJ1200 | ZJP600/ZJP300/2BE1202 | 1200 | 51.5 | |
| JZJ2B2500-2.2.1 | ZJ2500 | ZJ1200/ZJP600/2BE1252 | 2500 | 85.5 | |
| JZJ2B2500-4.2.1 | ZJ2500 | ZJP600/ZJP300/2BE1202 | 2500 | 55.5 | |
| JZJ2B5000-4.2.1 | ZJ5000 | ZJ1200/ZJP600/2BE1252 | 5000 | 118.5 | |
ⓘ
Explanation & Important Notes
1
The series in the table represents the recommended standards. Due to the varying working conditions in actual production applications, the gas intake and pressure will undergo many changes. Therefore, during the selection process, calculations or reference to the usage of existing equipment should be conducted based on the actual vacuum extraction process, gas release process, condensation of non-volatile gases, time variations of the intake pressure, etc.
2
The technical indicators of the single pump are detailed in the respective pump parameter tables.
3
The maximum intake pressure refers to the highest pressure that the main pump can start at. If it operates for a long time at a pressure higher than this, it will cause the main pump to overload.
4
If the vacuum pump motor, electrical contact vacuum gauge/pressure transmitter, and electrical control cabinet need to be explosion-proof, please specify during the order. The 2BV5 water ring vacuum pump in the table should be correspondingly changed to the 2BV6 series.
❓
Frequently Asked Questions (FAQ)
Q
What does the unit model naming convention (e.g., JZJ2B30-1) indicate?
The unit model code identifies the specific configuration of the vacuum pump unit. For example, "JZJ2B" denotes the roots-water ring combined vacuum unit series, the number following indicates the pumping speed (L/S), and the suffix identifies the number of pump stages and configuration variant. This allows users to quickly identify the unit's performance range and pump combination.
Q
What is the difference between the main pump and the pre-stage pump in these units?
The main pump (e.g., ZJP30, ZJP70) is the roots vacuum pump responsible for achieving high vacuum levels by boosting the pressure differential. The pre-stage pump (e.g., 2BV5110, 2BE1 202) serves as the backing pump, maintaining the inlet pressure of the main pump within its operating range and exhausting gas to atmosphere. Together they form a combined vacuum system capable of reaching deeper vacuum levels than either pump alone.
Q
How should I select the right unit model for my application?
Selection should be based on your actual process requirements, including the required vacuum level (absolute pressure in Pa), the pumping speed (L/S) needed to evacuate the system within an acceptable time, the nature of the gas (whether it contains vapors or condensable components), and any load variations over time. It is recommended to consult the pump parameter tables and, if necessary, perform engineering calculations or reference existing similar equipment installations.
Q
When is an explosion-proof configuration required, and how do I order it?
An explosion-proof configuration is required when the vacuum pump system is used in environments with flammable, explosive, or hazardous gases or vapors — such as chemical plants, petrochemical facilities, or solvent processing operations. In this case, the motor, electrical contact vacuum gauge or pressure transmitter, and the electrical control cabinet must all meet explosion-proof standards. Please specify this requirement at the time of ordering, and note that the 2BV5 series water ring vacuum pumps listed in the table should be replaced with the corresponding 2BV6 explosion-proof series.
Q
What happens if the main pump operates above its maximum intake pressure for extended periods?
Operating the main pump continuously at pressures higher than its rated maximum intake pressure will cause the motor to draw excessive current, leading to overheating and potential motor burnout. It can also increase mechanical wear on the pump internals, reduce service life, and may trigger thermal protection shutdowns. It is essential to ensure the pre-stage pump has sufficient capacity to keep the main pump inlet pressure within the specified operating range at all times.
Q
What are the typical industrial applications for the JZJ2B series vacuum units?
The JZJ2B series roots-water ring combined vacuum units are widely used across various industries requiring medium to high vacuum levels, including vacuum distillation and drying in the pharmaceutical and chemical industries, vacuum degassing and impregnation in metallurgy and electronics manufacturing, vacuum packaging and forming in the food and plastics industries, as well as vacuum filtration and crystallization processes. Their ability to handle large gas volumes with reliable deep vacuum performance makes them suitable for demanding industrial processes.