FORYOU Air-Cooled Roots Vacuum Pump from China Factory - High Efficiency and Durable Suppliers
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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 |
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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
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What does the model number (e.g., ZJQ-300) indicate?
The number in the model name refers to 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 can handle up to 5000 L/S.
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Why is the limiting pressure the same (15000 Pa) across all models?
All ZJQ series models share the same limiting pressure of 15,000 Pa, which reflects a consistent design standard for this pump series. The differentiation between models lies in their pumping capacity, motor power, and connection diameters rather than limiting pressure.
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How is the appropriate motor power selected for a specific model?
The rated power shown (e.g., 5.5～37 KW for ZJQ-300) represents a range. The actual motor power required is determined by the working pressure difference in your application. Higher pressure differentials demand more powerful motors. It is recommended to consult with the manufacturer to confirm the correct motor specification for your conditions.
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How does the working pressure difference affect water consumption?
The working pressure difference directly influences how much cooling water the pump system requires. A larger pressure difference generates more heat, necessitating a larger cooler heat exchange area and higher water flow. Therefore, water consumption is not fixed and must be calculated based on actual operating conditions.
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What are the intake and exhaust diameters used for, and why do they vary by model?
The intake and exhaust diameters (in mm) determine the pipe connection size for the pump. Larger models with higher suction capacities require wider ports to accommodate greater gas flow volumes. For instance, ZJQ-300 uses 125 mm ports, while ZJQ-5000 requires 400 mm ports.
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Are the cooler specifications customizable based on the application?
Yes. As stated in the product note, the heat exchange area of the cooler is determined based on the actual working pressure difference. Different operating conditions will require different cooler configurations. Customers should provide their specific pressure difference data so the appropriate cooler can be selected or customized accordingly.