Frequently Asked Questions

A vacuum pump operates on the principle of removing air/gas from a sealed space, thereby creating a vacuum. There are several types of vacuum pumps, each operating in different ways, but the basic principle of removing air/gas is the same.

Here are some basic types of vacuum pumps and their operating principles:

• Vane Vacuum Pump
  • Rotary vane technology is synonymous with robust and functional design. In a cylindrical casing, a rotor with vanes is mounted eccentrically.
  • Due to centrifugal force during rotation, the vanes extend from their slots and create a vacuum between themselves and the casing.
• Water Ring Vacuum Pump
  • Liquid ring technology is known for its robust construction and well-tested, extremely reliable design. An eccentrically mounted impeller rotates in the casing partially filled with working fluid.
  • The impeller’s blades, which are in the fluid, and the centrifugal force caused by their rotation, form a so-called liquid ring in the casing.
• Dry Screw Vacuum Pump
  • Screw technology provides high-performance and robust generation of vacuum pumps for industrial applications.
  • Inside the screw vacuum pumps, two screws rotate in opposite directions. The pumping medium is trapped between the cylinder and screws. In this space, it is compressed and transferred to the output. During this process, the screws do not touch each other or the cylinder.
  • Cooling is achieved by air or water cooling.

There are several different types of vacuum pumps. In the BUSCH sales program, these include:

• Vane vacuum pumps, which are divided into oil vane and dry vane vacuum pumps
• Water ring vacuum pumps
• Dry contactless vacuum pumps, which are divided into screw, claw, roots, diffusion, and scroll vacuum pumps
• Blowers, which can operate as a vacuum pump or as a blower

When choosing a vacuum pump, consider:

• Required ultimate vacuum
• Required capacity
• Size of the vacuum system
• Reliability and maintenance
• Environmental and energy aspects Therefore, before choosing a vacuum pump for a specific application, it is important to consider these factors and consult with an expert if necessary.

Maintaining a vacuum pump is crucial to ensure efficient operation and extend its lifespan. Here are some basic maintenance steps:

• Regular cleaning and inspection
• Oil change
• Checking seals
• Lubricating moving parts
• Temperature control
• Regular servicing
• Avoiding overload Regular maintenance can extend the life of your vacuum pump and ensure smooth operation of the system.

Calculating the time to vacuum a chamber with a vacuum pump depends on several factors, including:

• Required ultimate vacuum
• Chamber volume
• Type and performance of the vacuum pump
• Initial pressure in the chamber
• Sealing of the system To calculate the vacuuming time, you can also use a formula based on the above factors and specifications of your system. It is important to consult with a vacuum technology expert or engineer for proper calculation and use of your vacuum equipment.

Proper installation and use of a vacuum pump are key to ensuring efficient operation. Below are the basic steps for installing and using a vacuum pump:

Installation:

• Choose an appropriate location
• Connection: Connect the pump to the appropriate power supply according to the manufacturer’s instructions
• Hose mounting: Properly install air inlet and outlet hoses and secure them with sealing couplings or clamps
• Operational check: Before turning on, check if the pump is properly installed and connected

Usage:

• Pressure check: Before starting pumping, check the current pressure in the chamber or system you want to vacuum
• Turn on: Turn on the pump according to the manufacturer’s instructions
• Monitoring: Regularly monitor the operation of the pump and the pressure in the system
• Vacuuming time: The vacuuming time depends on the size of the chamber, the required ultimate vacuum, and the capacity of the pump
• Turning off: When the desired ultimate vacuum is reached or when the process is completed, turn off the pump according to the manufacturer’s instructions
• Air removal: After turning off the pump, check if the vacuum is stable and there are no visible signs of air leakage

Maintenance:

• Regular cleaning
• Oil change
• Servicing: Have the pump serviced or inspected by an expert if necessary to prevent potential failures or issues Follow the manufacturer’s pump instructions and adhere to safety guidelines when installing, using, and maintaining the vacuum pump.

• Checking power supply
• Checking sealing
• Checking oil
• Checking filtration
• Checking valves
• Checking rotor and
• Pressure measurementsIf you diagnose a problem that you cannot solve yourself, or if you are unsure about the cause of the issue, consult an expert or a pump service technician. It is important that repairs are performed according to the manufacturer’s instructions and in safe conditions.

The use of a vacuum pump for different liquids or gases depends on the type of pump and its specifications and compatibility with the liquids or gases you want to pump. Some pumps are more universal and suitable for a wide range of liquids and gases, while others are specialized for certain types of media.

In any case, it is recommended that you consult with the manufacturer or an expert before using the pump to ensure its suitability for your specific needs and applications.

• Choosing quieter models of vacuum pumps: BUSCH offers a wide range of vacuum pumps for your entire needs
• Installation of insulation materials
• Use of noise dampers
• Proper installation
• Regular maintenance: Regular maintenance of the pump can reduce wear and thus also the noise caused by the wear of parts.
• Distancing from the working area

BUSCH’s OTTO solution reports on the status of your vacuum pumps 24/7 and provides key information for better production and maintenance decisions. OTTO sends you notifications if something is not going according to plan. Free up time to focus on your core activities while OTTO takes care of your production process. OTTO – your insurance for vacuum availability.