China Screw Water Ring Vacuum Pump Unit - Leading Suppliers & 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
05
Self-manufactured and produced
06
Foryou vacuum pump customer cases
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 | |
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Explanation
- 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.
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Frequently Asked Questions
Q
What is the difference between the JZJ2B series units with different absolute vacuum ratings (267 Pa, 25 Pa, 0.5 Pa)?
A
The absolute vacuum rating indicates the depth of vacuum the unit can achieve. Units rated at 267 Pa use a single-stage pre-pump configuration, those at 25 Pa employ a two-stage pre-pump setup, and units reaching 0.5 Pa use a three-stage pre-pump arrangement. Higher vacuum depth requires more pump stages and typically results in higher total power consumption.
Q
How should I select the correct JZJ2B vacuum unit for my application?
A
Selection should be based on your actual vacuum extraction process, including gas intake volume, required vacuum level, gas release characteristics, condensation of non-volatile gases, and time variations in intake pressure. It is recommended to perform calculations or reference existing equipment with similar working conditions rather than relying solely on the table values.
Q
What happens if the main pump operates at a pressure higher than the maximum intake pressure for an extended period?
A
Operating the main pump continuously at pressures exceeding the maximum intake pressure will cause the main pump to overload. This can lead to overheating, mechanical damage, and premature failure. Always ensure the operating pressure remains within the specified limits for reliable and safe operation.
Q
When is the explosion-proof configuration required, and what changes need to be made?
A
Explosion-proof configuration is required when the vacuum pump system is used in environments with flammable or explosive gases, vapors, or dust. In such cases, the vacuum pump motor, electrical contact vacuum gauge or pressure transmitter, and electrical control cabinet must all be explosion-proof rated. Additionally, the 2BV5 water ring vacuum pump specified in the table must be replaced with the corresponding 2BV6 series. This must be specified at the time of ordering.
Q
What is the role of the pre-stage pump in the JZJ2B vacuum unit system?
A
The pre-stage pump (also called the backing pump) is responsible for establishing a preliminary vacuum level before the main Roots pump begins operation. It reduces the discharge pressure for the main pump, enabling the system to reach lower ultimate vacuum levels than a single pump could achieve alone. Multi-stage pre-pump configurations (e.g., ZJP + 2BV series) allow the system to reach extremely low pressures such as 0.5 Pa.
Q
Can the draw rate (pumping speed) values in the table be taken as exact operating parameters?
A
The draw rate values listed in the table are based on recommended standard configurations. In actual production applications, the effective pumping speed may vary due to changes in gas composition, inlet pressure fluctuations, pipeline resistance, and other process-specific factors. For precise performance requirements, detailed engineering calculations should be performed, and consultation with the manufacturer is advised to confirm the most suitable unit model.