Technical Description
10
Revision 11.2011
Air Amplifiers
Fig. 3:
How MPLV 4L works
1
Compression compartment
2
Pressure outlet
3
Charge pressure
4
Pilot valve
5
Pilot valve
6
Drive compartment
7
Control slide valve
8
Exhaust
P
L
= Drive pressure
B = Pressure outlet
Y
2
= Exhaust air from pilot valve
A = Charge pressure
Y
1
= Exhaust air from control valve
The functionality of the MPLV 4L model differs from that of the standard MPLV 4-
version in that the "intake stroke" is performed by the drive air and not by the
primary pressure at port "A". This enables you to use lower primary pressures.
3.1.2
MPLV 2, SPLV 2 and GPLV 2 air amplifiers
The charge air flows from port A through the non-return valves 2 and enters
compression compartments I and II. The drive pressure (port P
L
) fills drive
compartment II via the control slide valve, while drive compartment I is
depressurized. Due to its movement, the piston reduces the volume in compression
compartment II, thereby increasing the pressure. Operating pressure is conveyed to
the outlet of the device (port B) through the non-return valve 4. When the control
slide valve reaches its final position, it is switched by a pilot valve. Drive
compartment II is ventilated. The compressed air is amplified in compression
compartment I.
