China Suppliers Factory FORYOU Air-Cooled Roots Vacuum Pump - High Performance, 150 mbar Vacuum Degree
01
The special structural design ensures that the pump will not overheat or overload when operating under high pressure difference and high compression ratio;
02
The accessories are precisely processed by a machining center, and the gaps between the rotors and between the rotors and the pump body are strictly controlled to ensure that they are less than 0.05mm, ensuring stable operation;
03
The composite sealing structure technology completely solves the emulsification and leakage problems of the pump oil, making it more stable and reliable
04
The precise gears (5-level precision) rotation and precise coupling connection ensure the smoothness of the pump operation and the accuracy of power transmission, with extremely low operating noise
Product Parameters
| Model number | ZJQ-300 | ZJQ-600 | ZJQ-1200 | ZJQ-2500 | ZJQ-3750 | ZJQ-5000 |
| Maximum suction rate (L/S) | 300 | 600 | 1200 | 2500 | 3750 | 5000 |
| Limiting pressure (Pa) | 15000 | 15000 | 15000 | 15000 | 15000 | 15000 |
| Speed (rpm) | 1480 | 1460 | 1470 | 1470 | 1470 | 1470 |
| Rated power (KW) | 5.5～37 | 7.5～75 | 15～132 | 22～280 | 30～400 | 45～710 |
| Intake and exhaust diameters (mm) | 125 | 250 | 300 | 350 | 350 | 400 |
Note: The motor power of the pump, the heat exchange area of the cooler, and the water consumption are determined based on the actual working pressure difference. Different pressure differences require different motors and coolers, and the water consumption will also vary.
Frequently Asked Questions
Q
What does the model number (e.g., ZJQ-300) indicate for these pumps?
The model number reflects the maximum suction rate of the pump in liters per second (L/S). For example, ZJQ-300 has a maximum suction rate of 300 L/S, while ZJQ-5000 delivers up to 5000 L/S, allowing users to select the right unit based on their flow capacity requirements.
Q
Why is the limiting pressure the same (15,000 Pa) across all ZJQ models?
All ZJQ series models share a limiting pressure of 15,000 Pa because they are designed within the same vacuum performance range. This uniformity ensures consistent vacuum depth across the product line, making it easier to integrate different capacity models into the same system or process environment.
Q
How should I determine the appropriate motor power for my application?
Motor power is not fixed — it is determined by the actual working pressure difference in your specific process. Each model offers a rated power range (e.g., ZJQ-1200 ranges from 15 to 132 KW). You should consult with your supplier or engineer, providing your actual operating conditions, to select the most suitable motor configuration.
Q
Does the cooler specification change between different ZJQ models?
Yes, the heat exchange area of the cooler varies depending on both the pump model and the actual working pressure difference. A higher pressure difference or larger pump model generally requires a cooler with a greater heat exchange area to maintain safe and efficient operation. Always specify your working conditions when ordering.
Q
What factors affect the water consumption of the ZJQ pump system?
Water consumption is primarily influenced by the actual working pressure difference in the system. A larger pressure differential increases the thermal load on the cooler, which in turn requires more cooling water. Since this value differs by application, water consumption figures should be confirmed during the project design or equipment selection phase.
Q
Are the intake and exhaust diameters important for system integration?
Yes, the intake and exhaust diameters are critical for pipeline and system design. They range from 125 mm (ZJQ-300) up to 400 mm (ZJQ-5000). Matching these diameters with your existing piping infrastructure ensures efficient airflow, minimizes pressure losses, and simplifies installation without requiring custom adapters.