# Arc discharge pump (ADP)
> Original page (HTML): https://vaclab.ru/devices/arc-vacuum-pump
> Markdown version: https://vaclab.ru/devices/arc-vacuum-pump.md
> Manufacturer: LLC "Laboratory of Vacuum Technologies Plus" (LVT), vaclab.ru
Arc-discharge pump (ADP) - a high-performance unit for gas pumping and creating high vacuum in industrial technological installations for vacuum metallization, electron beam welding, and vacuum furnaces.
Purpose:
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Obtaining "dry" vacuum in technological installations
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High-performance pumping of any chemically active gases
Operating principle:
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Pumped gases are absorbed by a titanium getter layer deposited on the cooled walls of the pump chamber
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Titanium evaporates from a cathode located in the center of the chamber using a vacuum arc
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The arc initiation and extinction are controlled by a controller that maintains a preset evaporation rate
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The evaporation rate can be adjusted based on feedback from a vacuum gauge, automatically maintaining pumping performance without excessive cathode consumption
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An auxiliary diffusion or turbomolecular pump provides initial vacuum and pumping of the inert component of residual gases
Advantages:
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Stable high pumping speed over a wide pressure range
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Does not require high-performance forevacuum pumping
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Ability to manufacture pumps of any performance
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Can pump aggressive gases, such as chlorides
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Not affected by condensation of liquid or solid deposits, can be used for pumping organic vapor
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Not damaged by atmospheric or water breakthrough
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Does not require time for start-up and shutdown
Operating features:
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Periodic maintenance - cleaning the pump chamber - takes no more than 30 minutes
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Cathode life, depending on operating conditions, ranges from one to three years
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Automatic monitoring of cathode condition and the need for wall cleaning
Application recommendations:
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Vacuum pumping of large-volume chambers
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Technological processes associated with strong gas emission
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Pumping of aggressive gases, such as chlorides
## Technical specifications
- Dimensions *(Length x Width x Height), mm, not more than: 1219 х 816 х 1960
- Pumping rate: 20 000 (по азоту)
- Weight, kg: 650
- Mounting flange: ISO400
- Power consumption, W: 15 000