China Oil-Free Screw Vacuum Pump Technology - Leading Suppliers and Factory for High-Performance Solutions
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Product Parameters
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| Model Number | Vacuum Extraction Rate (L/S) | Power (KW) | Limiting Pressure (Pa) | Speed (rpm) | Cooling Water (L/min) |
|---|---|---|---|---|---|
| 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?
A
All models in the LGB series — from LGB-10 to LGB-400 — share a consistent limiting pressure of 5 Pa, making them suitable for applications requiring a stable and high-quality vacuum environment.
Q
Which LGB models do not require cooling water?
A
The LGB-10, LGB-15, and LGB-20 models require 0 L/min of cooling water, meaning they operate without a cooling water supply. Models from LGB-50 onwards require varying amounts of cooling water depending on their power output.
Q
What is the operating speed (rpm) across the LGB series?
A
All LGB series models operate at a uniform speed of 2900 rpm, ensuring consistent rotational performance and reliable vacuum extraction across the entire product range.
Q
How much cooling water does the LGB-400 require, and why?
A
The LGB-400 requires 30 L/min of cooling water. As the highest-capacity model with a power rating of 37 KW and a vacuum extraction rate of 400 L/S, it generates more heat during operation and therefore demands a greater cooling water flow to maintain safe and efficient performance.
Q
How do I select the right LGB model for my application?
A
Model selection should be based on your required vacuum extraction rate (L/S) and available power supply (KW). For smaller systems or lab use, models like LGB-10 to LGB-20 are ideal. For industrial-scale applications demanding higher throughput, models such as LGB-300 or LGB-400 are recommended. Also consider your cooling water infrastructure for models LGB-50 and above.
Q
Is there a proportional relationship between power and vacuum extraction rate in the LGB series?
A
Yes, there is a generally proportional relationship. As the vacuum extraction rate increases from 10 L/S (LGB-10, 1.1 KW) to 400 L/S (LGB-400, 37 KW), the power requirement scales accordingly. This allows users to estimate energy consumption based on their required pumping capacity when planning system installations.