High-Speed Roots Vacuum Pump Operation | China Suppliers & Factory for ZJP Roots Pump with Built-in Bypass Valve
01
The entire series is equipped with QT500 high-strength ductile iron rotor, with a tensile strength of 500 MPa and an elongation rate of 15%.
02
The composite sealing structure technology completely solves the emulsification and leakage problems of vacuum pump oil, making it more stable and reliable.
03
The accessories are precisely manufactured by imported processing centers, with strict control of the gaps between rotors and between rotors and the pump body, ensuring stable operation when the gap is less than 0.05mm
04
The spiral jacket cooling method ensures excellent heat exchange efficiency, fully guaranteeing the low-temperature lubrication performance of the lubricating oil, thereby extending the service life of gears, bearings and mechanical seals.
Product Parameters
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| Model Number | Maximum Suction Rate (L/S) | Intake Diameter (mm) | Exhaust Pipe Diameter (mm) | Noise ≤dB(A) | Motor Power (kW) | Speed (r/min) |
|---|---|---|---|---|---|---|
| ZJP-30 | 30 | 80 | 50 | 78 | 1.5 | 1420 |
| ZJP-70 | 70 | 80 | 50 | 78 | 1.5 | 2840 |
| ZJP-150 | 150 | 100 | 80 | 81 | 3 | 2880 |
| ZJP-300 | 300 | 150 | 100 | 82 | 4 | 2890 |
| ZJP-600 | 600 | 200 | 150 | 84 | 7.5 | 2900 |
| ZJ-1200 | 1200 | 250 | 200 | 85 | 11 | 2940 |
| ZJ-2500 | 2500 | 300 | 250 | 87 | 22 | 2940 |
| ZJ-5000 | 5000 | 400 | 400 | 88 | 37 | 2940 |
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Frequently Asked Questions
Q
What is the maximum suction rate available across the ZJP/ZJ pump series?
A
The highest maximum suction rate in this series is 5000 L/S, achieved by the ZJ-5000 model, making it suitable for large-scale industrial vacuum applications.
Q
Which model is best suited for low-noise environments?
A
The ZJP-30 and ZJP-70 models offer the lowest noise level at ≤78 dB(A), making them the most appropriate choices for noise-sensitive working environments.
Q
What motor power does the ZJP-600 model require?
A
The ZJP-600 model is equipped with a 7.5 kW motor, operating at a speed of 2900 r/min with an intake diameter of 200 mm.
Q
What is the difference between the ZJP and ZJ model designations?
A
Models prefixed with ZJP (e.g., ZJP-30 to ZJP-600) are generally smaller-capacity units, while models prefixed with ZJ (e.g., ZJ-1200 to ZJ-5000) represent higher-capacity pumps designed for demanding industrial vacuum processes.
Q
How do I select the right model based on intake and exhaust pipe diameter?
A
Selection should be based on your existing pipeline specifications. For example, if your system uses 150 mm intake and 100 mm exhaust connections, the ZJP-300 would be the appropriate match. Always ensure the pump's port sizes align with your system piping to avoid flow restrictions.
Q
What operating speed do most models in this series run at?
A
The majority of mid-to-large models — including ZJ-1200, ZJ-2500, and ZJ-5000 — operate at 2940 r/min. Smaller models such as ZJP-30 run at a lower speed of 1420 r/min, while ZJP-70 and above generally operate between 2840–2900 r/min.