China Air-Cooled Roots Vacuum Pump Supplier - High Performance Factory Direct with 150 mbar Vacuum Capability
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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 & 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 is the maximum suction rate available in the ZJQ pump series?
The ZJQ pump series offers a maximum suction rate of up to 5000 L/S, available in the ZJQ-5000 model. The range starts from 300 L/S (ZJQ-300) and scales up progressively to suit different application requirements.
Q
Is the limiting pressure the same across all ZJQ models?
Yes. All models in the ZJQ series share a uniform limiting pressure of 15,000 Pa, making them consistent in terms of vacuum performance regardless of the model size selected.
Q
How is the motor power determined for a specific ZJQ pump model?
The motor power is not fixed — it is determined based on the actual working pressure difference of the application. Each model provides a rated power range (e.g., ZJQ-1200: 15～132 KW), and the appropriate motor within that range is selected according to the specific operating conditions.
Q
Why does water consumption vary between different ZJQ pump configurations?
Water consumption is directly tied to the heat exchange requirements of the cooler, which in turn depends on the actual working pressure difference. Higher pressure differences generate more heat, requiring larger coolers and greater water consumption to maintain stable operation.
Q
What are the intake and exhaust diameter options across the ZJQ series?
Intake and exhaust diameters increase with pump capacity: 125 mm (ZJQ-300), 250 mm (ZJQ-600), 300 mm (ZJQ-1200), 350 mm (ZJQ-2500 & ZJQ-3750), and 400 mm (ZJQ-5000). Selecting the correct diameter is important for proper system integration and flow efficiency.
Q
Are the operating speeds consistent across the ZJQ pump models?
The operating speeds are very similar across the series, ranging from 1460 to 1480 rpm. The ZJQ-300 runs at 1480 rpm, ZJQ-600 at 1460 rpm, and all larger models (ZJQ-1200 through ZJQ-5000) operate at 1470 rpm, ensuring stable and reliable performance across the full product range.