Assembly and Putting into Service
Air Amplifiers
Revision 11.2011
17
Connection options for air amplifiers:
1. Control of operating pressure p
b
by reduction of drive pressure p
l
.
Greater fluctuations in pressure in the compressed air network have an
impact on operating pressure. Pressure reduction will reduce output volume.
2. Direct control of operating pressure p
b
through pressure reduction valve.
Good control of operating pressure at highest output capacity. Fluctuations in
pressure in the compressed air network have no impact on operating
pressure (external control port).
3. Use of a pressure switch NO (normally open, only possible for SPLV 2 and
GPLV 2).
Drive air flows through the bypass pipe to the pressure outlet until the same
pressure is achieved. It is possible to fill a larger volume quickly on the
pressure outlet side. The air amplifier operates until the operating pressure
set at pressure switch NO is achieved. This connection option is only
appropriate if there is no continuous compressed air consumption.
4. Use of a pressure switch NC (normally closed, only possible for SPLV 2 and
GPLV 2).
The pressure switch NC needs to be set to a lower pressure than the drive
pressure. As long as the operating pressure is smaller than the set pressure,
the air will flow through the bypass pipe. The air amplifier does not yet
operate under these circumstances. It only starts to operate when the
operating pressure reaches the set value. This switching enables the
abrasion of the seals to be reduced.
