China Oil-Free Screw Vacuum Pump Technology - Leading Suppliers and Factory for High-Performance Solutions
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Product Parameters
📋
The table below lists the full technical specifications for the LGB series vacuum pumps, including vacuum extraction rate, power, limiting pressure, speed, and cooling water requirements across all available models.
| 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 |
❓ Frequently Asked Questions
Q
What is the limiting pressure for all LGB series vacuum pump models?
All models in the LGB series — from LGB-10 to LGB-400 — share a uniform limiting pressure of 5 Pa, making them suitable for applications that require a consistent and stable vacuum level.
Q
Which LGB models require cooling water, and how much is needed?
Models LGB-10, LGB-15, and LGB-20 do not require cooling water (0 L/min). Starting from LGB-50, cooling water is required. The requirement increases with model size, ranging from 8 L/min (LGB-50) up to 30 L/min (LGB-400).
Q
What is the operating speed (rpm) of the LGB series vacuum pumps?
All models in the LGB series operate at a standard speed of 2900 rpm, ensuring consistent performance and compatibility with standard power supply frequencies.
Q
How do I choose the right LGB model based on vacuum extraction rate?
The LGB series offers vacuum extraction rates from 10 L/S (LGB-10) to 400 L/S (LGB-400). Select a model whose extraction rate meets or slightly exceeds your system's required pumping speed to ensure efficient and stable vacuum performance.
Q
What is the power consumption range across the LGB series?
Power consumption across the LGB series ranges from 1.1 KW (LGB-10) to 37 KW (LGB-400). Higher-capacity models naturally consume more power, so ensure your facility's electrical supply can support the selected model's requirements.
Q
Are LGB series vacuum pumps suitable for industrial applications?
Yes. The LGB series is designed for a wide range of industrial vacuum applications. With extraction rates up to 400 L/S, a limiting pressure as low as 5 Pa, and models available with or without cooling water systems, these pumps are well-suited for demanding industrial environments requiring reliable and efficient vacuum performance.











