Central Vacuum Stations (CVS)

Central Vacuum Stations (CVS)

In demanding applications in which an interruption-free vacuum is required for multiple chambers, central vacuum stations (CVS) from Leybold ensure continuous availability. Typical applications include transport, handling, degassing and thermoforming, vacuum pressing, packing and the operation of medical apparatus as well as laboratory applications of multiple chambers.

Performance for various sectors

Our time-tested SOGEVAC rotary vane pumps are ideal for these processes because they are capable of covering widely differing demands. The pumps reliably meet the list of requirements in terms of operating pressure, cycle time and system availability for all applications – even in difficult production conditions.

Our central vacuum stations can be tailored precisely to customized processes as a result of the modular design of the SOGEVAC systems. The space-saving, low maintenance system solutions convince their users by their ease-of-use, good price-performance ratio and low running costs.

Ready for operation through large buffer volume

With their large buffer volume, our turnkey central vacuum stations also ensure rapid operational readiness and short cycle times. The typical working pressure ranges from 0.5 to 500 mbar.

RTM sample application

In addition to typical laboratory applications with multiple chambers and the thermoforming of industrially manufactured pharmaceuticals, CVS are also used for RTM. The supply of different vacuum levels is essential for this manufacturing process for composite materials. For example, the resin injection process requires a vacuum to seal the mold while at the same time an adjustable vacuum level is also required for the resin impregnation. In particular the SOGEVAC central vacuum stations provide the capacity and reliability required to ensure success in such demanding production conditions.

Application example: Thermoforming of industrially manufactured pharmaceutical products

When prescribing and using medication, the use of capsules is a common form of administration that supports the healing process. However, only a correct distribution of the drug can ensure that the capsule envelope dissolves in the stomach or small intestine and that the drug can develop its effect. The correct shaping of the capsule by using vacuum technology is therefore of crucial importance for pharmaceutical quality.

Technical features

A Central Vacuum system typically consists of the following:

  • Up to three SOGEVAC pumps (from 25 to 300 m3 / h)
  • Buffer tank
  • Manually operated valve (basic control system) or electro pneumatic operated valve (PLC system)
  • Dust filter on the pump inlet
  • Gauge / Sensor
  • Two-stage pressure regulator
  • Switchboard with controller
  • Connection elements
  • Pumping speed from 25 to 840 m3 / h
  • Final pressure ≤ 0.5 mbar
  • Pressure range 0-5-500 mbar
  • Tank capacity of 60, 160, 300, 500 or 1000 liters
  • Power from 0.8 to 18.9 kW
  • BASIC or PLC control system.