Specifications

19
RED
GREEN
IN
EX
CYL
MANUAL OVERRIDE BUTTON
OPTIONAL (SUFFIX -ME)
.47
11.8
2.09
53.2
24” (610mm) LEADS
⅛” NPT PILOT PORT
(EX-PILOT VALVES ONLY)
MANUAL LATCH PIN
3.42
86.9
8.4
213.4
2.0
50.8
.66
16.8
.66
16.8
2.98
75.7
IN EX
CYL
Latching pilot
Remote pilot
IN
EX
CYL
INDICATOR DEVICE REFERENCE
● RED INDICATES THAT THERE IS NO PRESSURE IN THE PILOT LATCH CHAMBER.
● GREEN INDICATES THAT THE PILOT LATCH CHAMBER IS PRESSURIZED AND THE VALVE
IS IN THE ACTIVATED POSITION
1.0 MIN. PANEL HOLE ø
¼” NPT (3 PORTS)
OPTIONAL EXTRA PANEL NUT (SUFFIX “43E”)
MAX. PANEL THICKNESS (SUFFIX “43E”)
MAX. PANEL
THICKNESS
⅛” NPT PILOT
EXHAUST PORT
1.63
41.4
.63
16
1.0
25.4
2.0
50.8
7.30
185.3
7.46 MAX
189.4
1.0
25.4
.56
14.2
.38
9.7
Main Supply Reset Valves - 3/2 (Three-Way)
Normally Closed
Type: Specialized Application
Knob: Non-Latching, Indicating
Knob: Latching, Non-Indicating
BAA-3309-900NF
Maximum allowable exhaust backpressure: 5 psi (0.3 bar)
Maximum allowable exhaust backpressure:
5 psi (0.3 bar)
Pilot pressure required: 25-75 psi (1.7-5.1 bar) to maintain air latch
When available pilot signal will not be less than 40 psi, Sufx Option -S
is recommended.
Maximum allowable exhaust backpressure:
5 psi (0.3 bar)
When available inlet pressure will not be less than 40 psi, Sufx
Option -S is recommended.
Knob: Latching, Non-Indicating
* Pilot pressure required: 50-200 psi (3.4-14 bar) to unlatch
manual pin and to maintain air latch
or actuate remotely
BAA-3309-900PR
BAA-3309-900G-(*)
Controlled Pressure: 25-120 psi (1.7-8.2 bar)
25 psi (1.7 bar) minimum to unlatch manual
pin or to maintain air latch
Controlled Pressure: 0-75 psi (10-5.1 bar)
Controlled Pressure: 0-200 psi (10-14 bar)
Description Function is the same as Air Latch Pilot types on page 18 except that internal connection from CYL port to pilot
provides the valve with a means to trip the valve closed to ow should a leak or other loss of pressure occur in the indicator loop
line that connects “Indicator valves” to the pilot port. This feature eliminates need for separate connection from CYL port to “Indica-
tor valves”.
Description Function is the same as Air Latch Pilot types on page 18, but valve is additionally equipped with a Remote Pilot
so that the valve can be reset with a remote pilot signal as well as manually. However, the manual pin latch is not activated by the
remote pilot signal, so the valve will remain reset only as long as the remote pilot signal remains intact. Generally, this feature is
useful where the Main Supply Reset valve is somewhat inaccessible and allows the operator to reset the valve from a separate
location, until the operator is able to get to the station and activate
the pin latch.
Description Function is the same as Air Latch Pilot types on page 18, except Air Latch Pilot is solenoid controlled. Electri-
cal signal causes pressure to be admitted to the pilot chamber from valve inlet through an internal passage to pilot, but Air Latch
Pilot is not activated until knob is manually pulled out. The manual pin latch can be activated once the solenoid is de-energized.
DIMENSIONS: Inch
mm
*Specify coil code Page 9