The pneumatically operated amplifier valve
is a 3-way/2-position normally closed valve,
changing low pressure signals into 2 - 8 bar
The valve construction allows permanent
reduced air consumption at rest.
Pilot pressure applied at Port 12 actuates
valve and allows pressure (2 - 8 bar) to flow
from inlet P to outlet A). 1 → 2. A constant
"leak," or air consumption, occurs while unit
is at rest from inlet 1 to atmosphere.
Basic Assembly/Circuit Guide
The air signal from the receiver element (2LB-SR) will typically become the input pilot signal to the amplifier valve
(2LA-AM). Receiver element (2LB-SR) will typically connect its port 2 (or "A"), to the amplifier valve pilot port 12.
Pilot pressure applied at Port 12 actuates valve and allows pressure (2 - 8 bar) to flow from inlet P to outlet A).
1 → 2. A constant "leak," or air consumption, occurs while unit is at rest from inlet 1 to atmosphere.
3-way/2-position normally closed
Aluminum body, Buna-N seals
By M5 (10-32 UNF) screws
1/8" BSP (accepts 1/8" Pro-Fit NPTF)
In any position
32° - 175° F (Dry air required down to -4° F)
Min. 2 - max. 8 bar (29-116 PSI)
Minimum signal input pressure
0.03 bar (.435 psi)
Maximum signal input pressure
0.6 bar (8.7psi)
Constant air consumption
at rest (6 bar)
3.3 NL/min (.116 SCFM) via port 1 to atmosphere
without signal present at 12
120 NL/min (4.23 SCFM) P → A (1 → 2)
Cv = 0.13 (when actuated)
Filtered, not lubricated air
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