7.3 Safety valve
Description
When the blower runs loaded, the main valve disk is closed. The bellows and outlet pipeline are
connected by the control valve (5). If the pressure exceeds the limits, the control valve opens and
releases air into the atmosphere. The pressure in the bellows is reduced and the main valve disk
starts to open. When the pressure enters the limits, the control valve closes and no more air is
released into the atmosphere and the pressure in the bellows rises causing the disk valve to
close fully.
Instruction book
AIF999999 69
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