Oil-Free Screw Vacuum Pump Technology from China Suppliers and Factory - High Performance and Efficiency
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Product Parameters
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Model Number |
Vacuum Extraction Rate |
Power |
Limiting Pressure |
Speed |
Cooling Water |
LGB-10 |
10 |
1.1 |
5 |
2900 |
0 |
LGB-15 |
15 |
1.5 |
5 |
2900 |
0 |
LGB-20 |
20 |
2.2 |
5 |
2900 |
0 |
LGB-50 |
50 |
5.5 |
5 |
2900 |
8 |
LGB-80 |
80 |
7.5 |
5 |
2900 |
10 |
LGB-120 |
120 |
11 |
5 |
2900 |
12 |
LGB-150 |
150 |
15 |
5 |
2900 |
14 |
LGB-200 |
200 |
18.5 |
5 |
2900 |
18 |
LGB-220 |
220 |
22 |
5 |
2900 |
20 |
LGB-300 |
300 |
30 |
5 |
2900 |
25 |
LGB-400 |
400 |
37 |
5 |
2900 |
30 |
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Frequently Asked Questions
Q What is the limiting pressure for all LGB series models?
All LGB series models — from LGB-10 to LGB-400 — share a consistent limiting pressure of 5 Pa, making them suitable for applications that require a stable and reliable high-vacuum environment.
Q Do the smaller LGB models require cooling water?
No. The LGB-10, LGB-15, and LGB-20 models do not require cooling water (rated at 0 L/min). Cooling water is only necessary starting from the LGB-50 model and above, with requirements increasing alongside power output.
Q What is the operating speed (rpm) across the LGB series?
All models in the LGB series operate at a consistent speed of 2900 rpm, ensuring uniform performance and simplifying maintenance and spare parts management across different model sizes.
Q Which model should I choose for high-volume vacuum extraction needs?
For high-volume applications, the LGB-300 (300 L/S, 30 KW) and LGB-400 (400 L/S, 37 KW) are the top-tier options in the series. They offer the highest vacuum extraction rates while maintaining the same limiting pressure of 5 Pa as all other models.
Q How does power consumption scale with vacuum extraction rate in the LGB series?
Power consumption scales progressively with extraction rate. For example, LGB-10 uses 1.1 KW for 10 L/S, while LGB-400 uses 37 KW for 400 L/S. This linear scaling allows users to select the most energy-efficient model that meets their specific process requirements.
Q How much cooling water does the LGB-400 require, and why is it important?
The LGB-400 requires 30 L/min of cooling water. Adequate cooling is essential for high-power models to dissipate heat generated during operation, ensuring long-term reliability, preventing overheating, and maintaining stable vacuum performance under continuous-duty conditions.