China Screw Water Ring Vacuum Pump Unit - High-Performance Suppliers & Factory Solutions
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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
- 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 does the unit model designation (e.g., JZJ2B300-2) represent?
The unit model designation indicates the series type, draw rate, and configuration stage of the vacuum unit. For example, JZJ2B300-2 refers to a two-stage unit with a draw rate of 300 L/S combining a roots pump as the main pump with a water ring pump as the pre-stage pump.
Q
How should I select the correct vacuum unit model for my application?
Selection should be based on actual process conditions, including the required vacuum extraction rate, gas release characteristics, condensation of non-volatile gases, and the time variation of intake pressure. Calculations based on your specific process or reference to existing equipment in similar applications are strongly recommended before making a final selection.
Q
What is the risk of operating the main pump above its maximum intake pressure?
Operating the main pump continuously at pressures above the specified maximum intake pressure will cause the pump motor to overload. This can result in overheating, accelerated wear, and potential failure of the main pump. It is essential to ensure operating conditions stay within the specified limits.
Q
Can these vacuum units be used in explosive or hazardous environments?
Yes, explosion-proof configurations are available. If the vacuum pump motor, electrical contact vacuum gauge/pressure transmitter, and electrical control cabinet are required to be explosion-proof, this must be specified at the time of ordering. Additionally, the 2BV5 water ring vacuum pump listed in the table must be replaced with the corresponding 2BV6 series.
Q
What is the difference between a 2-stage and 3-stage vacuum unit configuration?
A 2-stage configuration uses a main pump paired with a single pre-stage pump, achieving a moderate absolute vacuum (e.g., 25 Pa). A 3-stage configuration adds an additional intermediate pump between the main and pre-stage pumps, allowing the system to reach a much lower absolute vacuum (e.g., 0.5 Pa), making it suitable for applications requiring higher vacuum levels.
Q
Where can I find detailed technical parameters for individual pumps in the unit?
Detailed technical specifications and performance indicators for each individual pump — including the main pump and pre-stage pump — are available in their respective pump parameter tables. Please refer to those documents for complete data on flow rate, motor power, operating pressure range, and other specifications.