5
When the supply pressure falls to 55 bar, the warning whistle sounds and the air
source must be replaced.
The air source connections are fitted with vent valves to enable air source changes.
The pressure in the air source currently in use is displayed on the high pressure
gauge.
Non-return valves prevent reverse flow when the pressure in the system is reduced.
High pressure
gauge
Pressure regulator
Adapter hose
Connection to air
supply hose
Warning whistle
Vent valve
Connection to air
sources
Regulator
unit
Medium pressure
gauge
