Vacuum compressor pump systems are broadly categorized into three groups:
- Positive displacement vacuum pumps
- Momentum Transfer pumps
- Entrapment pumps
For low vacuum compressor pump systems, the positive displacement principle is highly efficient. However, when you want to achieve high vacuums, it would be best to combine momentum transfer pump with one or two positive displacement pumps. This is a special configuration where the positive displacement pump obtains a rough volume, before the momentum transfer pump creates a high vacuum. Ideally, momentum transfer pumps cannot start pumping at atmospheric pressure. The positive displacement pimp plays a critical role in backing up the momentum transfer pump by creating a low vacuum. If you want to achieve ultrahigh vacuums, you can add entrapment pumps into the configuration, although they need periodic regeneration of surfaces used for trapping vacuums
Global Vac offers vacuum compressor pump systems in a wide range of manufacturing tolerances, pressure, sealing material, admission or none admission of oil vapour, flow, reliability, service intervals, dust tolerance and resistance to vibration.