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Vacuum Booster Pumps and Multi Stage Vacuum Systems
Description
Vacuum Boosters Increase Performance
Engineered vacuum systems with boosters are multi-stage systems including one or more vacuum booster pumps and a primary pump. Vacuum boosters are always installed upstream of a primary pump, which discharges to atmospheric pressure. Systems with vacuum boosters have significantly higher performance than the primary pump alone. This means faster pumping speeds and deeper vacuum levels.
What Are Vacuum Boosters?
Vacuum boosters are positive displacement, two-lobe rotary blowers. Very tight running clearances enable the pump to operate efficiently without lubrication in the process chamber. The lobes, which are synchronized by timing gears in the oil box, convey the gas from the inlet to the discharge along the inner wall of the casing. The gas flow path is short, therefore reducing condensation and material buildup in the pump. Various materials of construction and shaft sealing options are available to meet process requirements. Vertical and horizontal flow installation options are also available.
Benefits
NASH multi-stage systems with vacuum boosters are robust and rugged, offering the following benefits:
- Higher pumping speed and deeper vacuum than a primary pump alone
- Reliable system operation due to the expertise of NASH applications engineers who ensure selection and system design meet process and safety requirements
- High flexibility due to potential for customization of system features and components
- Economical & efficient solution with favorable total power consumption for the total pumping speed
Technical Data
- Suction Capacity: as required
- Vacuum Range: less than 1 mmHgA
*Performance data is for illustrative purposes. Please consult with a Nash Engineer or Sales Representative for pump sizing and specific performance data.
Applications Expertise
Applications Expertise
Multi-stage vacuum systems are fit-for-purpose solutions designed for your single operating point.
NASH applications engineers utilize proprietary sizing and simulation tools to select the optimal system design after considering such variables as:
- Required pressures, flow rates, and temperatures
- Composition of chemicals being pumped
- Number of boosters in series of parallel
- Inter-stage cooling requirements
- Startup options including bypass valves and VFD operation
- Multiple modular skid arrangements for easy shipping and simple assembly at site
- And many more
With its large portfolio of rugged, battle-tested primary vacuum pumps and a wide selection of boosters, Nash is your partner in engineering safe and reliable multi-stage vacuum systems best suited for your chemical process requirements.
Example of multiple modular skid arrangement
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