Air-Cooled Roots Vacuum Pump from China Suppliers & Factory - High Performance at 150 mbar Vacuum Degree
01
When used alone, the working vacuum degree can reach 150 mbar directly to the atmosphere;
02
The special structural design ensures that the pump will not overheat or overload when operating under high pressure difference and high compression ratio
03
Compared with other mechanical vacuum pumps, it saves 30% energy
04
The entire series is equipped with QT500 high-strength ductile iron rotors, with a tensile strength of 500 MPa and an elongation rate of 15%;
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 of the ZJQ series pump indicate?
A
The model number of the ZJQ series pump corresponds directly to its maximum suction rate. For example, ZJQ-300 has a maximum suction rate of 300 L/S, while ZJQ-5000 can reach up to 5000 L/S, making it easy to select the appropriate model based on your required pumping capacity.
Q
What is the limiting pressure for all ZJQ series pump models?
A
All models in the ZJQ series share a uniform limiting pressure of 15,000 Pa. This consistent specification ensures reliable vacuum performance across the entire product range, regardless of the model size selected.
Q
Why does the rated power have a range (e.g., 5.5～37 KW) rather than a fixed value?
A
The rated power range reflects the flexibility of motor selection based on the actual working pressure difference. Different operating conditions require different motor configurations. A lower pressure difference may only need the minimum rated power, while higher pressure differences demand more powerful motors within the specified range.
Q
How does the working pressure difference affect the cooler and water consumption?
A
As the working pressure difference increases, more heat is generated during pump operation. This requires a larger heat exchange area in the cooler to maintain safe operating temperatures. Consequently, water consumption also increases proportionally, so it is important to evaluate your specific pressure conditions before selecting a cooler configuration.
Q
What operating speeds do the ZJQ series pumps run at?
A
The ZJQ series pumps operate within a narrow speed range of approximately 1460–1480 rpm across all models. This near-uniform speed ensures consistent and stable performance throughout the product line, simplifying integration into various industrial systems.
Q
How do I choose the right ZJQ pump model for my application?
A
Selecting the right model involves evaluating three key parameters: the required maximum suction rate (L/S), the expected working pressure difference, and the available power supply. Once your suction capacity requirement is identified, consult the specifications table to match the appropriate model, then confirm the motor power and cooler configuration with your supplier based on your actual pressure difference conditions.