Multi-stage vacuum generator / ejector
4 - 6 bar
AIRTEC Pneumatic
the Venturi principle. Compressed air with 4 to 6 bar
flows through a protective filter in the compressed
air supply port (1.1) into the ejector creating a vacuum
in the mixing chamber (C). The vacuum line is
evacuated via connection (2) and another protective
filter.
A check valve (D) between the mixing chamber (C)
and connection (2) as well as in connection (1.2)
seal off the vacuum system to the atmosphere so that
in the event of the compressed air supply being
interrupted in an airtight vacuum system, the vacuum
remains unaffected.
To this end, the production series HV-SA with
flange-mounted electronic vacuum switches has a
parts control or an electronically controlled saver
circuit with parts control.
With an integrated mechanical-pneumatic vacuum
regulator, the production series HV-P is able to
carry out an automatic saving function. Electronic
vacuum switches also enable a parts control.
An air blast in connection (1.2), which also has a
protective filter fitted against the infiltration of dirt,
quickly relieves the vacuum and in the process, also
cleans the protective filter in (2).
All ejector models can also be delivered with integrated
solenoid valves, in the form of a compact unit.
A fully pneumatic ejector control system with a pneumatic
vacuum switch is possible on request.
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