China Air-Cooled Roots Vacuum Pump Factory: High-Performance Pump Suppliers for Reliable Vacuum Solutions
01
When used alone, the working vacuum degree can reach 150 mbar directly to the atmosphere
02
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%;
03
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
04
The composite sealing structure technology completely solves the emulsification and leakage problems of the pump oil, making it more stable and reliable
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.
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Frequently Asked Questions
Q
What is the maximum suction rate available in the ZJQ pump series?
The highest maximum suction rate in the ZJQ series is 5000 L/S, offered by the ZJQ-5000 model, making it suitable for large-scale industrial vacuum applications.
Q
Do all ZJQ pump models share the same limiting pressure?
Yes. All six models in the ZJQ series — from ZJQ-300 to ZJQ-5000 — operate at a uniform limiting pressure of 15,000 Pa, ensuring consistent vacuum performance across the entire product line.
Q
How is the motor power determined for each ZJQ pump model?
The rated motor power is given as a range (e.g., 5.5～37 KW for ZJQ-300) because the required motor power depends on the actual working pressure difference. Higher pressure differentials demand more powerful motors. It is important to select the motor based on your specific operating conditions.
Q
What factors affect the cooler selection and water consumption?
Both the heat exchange area of the cooler and the water consumption are directly influenced by the actual working pressure difference. Greater pressure differences generate more heat, requiring larger coolers and higher water usage. Always consult the manufacturer or technical specifications for your specific operating pressure when selecting a cooler.
Q
What is the operating speed range across the ZJQ pump series?
The operating speeds across the ZJQ series are very consistent, ranging from 1460 to 1480 rpm. The ZJQ-300 runs at 1480 rpm, ZJQ-600 at 1460 rpm, and all remaining models (ZJQ-1200 through ZJQ-5000) operate at 1470 rpm.
Q
How do I choose the right ZJQ pump model for my application?
Selecting the correct model depends on several key parameters: your required suction rate (L/S), the working pressure difference in your system, and the available inlet/outlet pipe diameter. For example, if your process requires a suction rate of around 1200 L/S with a 300 mm pipe connection, the ZJQ-1200 would be the appropriate choice. Always factor in the pressure difference to determine the correct motor and cooler configuration.