Specifications

22
BAA-3308-550RAB
Construction:
Body, Internals, Caps
Hardcoated Aluminum (MIL-A-8625E, Type III, Class 1)
Seals FKM (uorocarbon)
Fasteners & Bypass lever stainless steel
Pressures:
Working (Controlled) pressure range 15-120 psi (1-8.2 bar)
Maximum allowable exhaust backpressure 5 psi (0.3 bar)
Pilot trip/reset psi (bar)
Flow:
Consult factory
Media:
Air
40 to 50 micron ltration recommended
Porting: Valve ports
Pilot ports
1/4” NPT
1/8” NPT
Mounting & Installation:
Panel mount (1” ø hole)
Indicator Colors: Trip mode (depressurized)
Working mode (pressurized)
Red (black character “R”)
Green (black character “G”)
Consult factory for other color availability
Inlet Pressure
Min. Reset
Pilot Pressure
Max. Trip
Pilot Pressure
15 (1.0) 9 (0.6) 3 (0.2)
30 (2.0) 14 (1.0) 6 (0.4)
50 (3.4) 23 (1.6) 12 (0.8)
70 (4.8) 31 (2.1) 20 (1.4)
90 (6.1) 38 (2.6) 27 (1.8)
110 (7.5) 46 (3.1) 33 (2.2)
120 (8.2) 50 (3.4) 37 (2.5)
2.86
72.6
1.88
47.6
1.15
29.2
5.30
134.6
1.33
33.8
1.70
43.2
¼” NPT THREE PORTS
(3) PLACES
⅛” NPT PORT
0.5
12.7
BYPASS
1.25
31.6
8.16
207.3
1.31
33.3
BYPASS ACTUATOR HANDLE. SHOWN IN NON-BYPASS MODE,
ROTATE HANDLE THUR 90° COUNTERCLOCKWISE FOR BYPASS
GREEN
RED
INDICATOR
IN EX
OUT
PILOT
(SENSOR)
Indicating Relay – Pilot Monitoring Valves
Series
B900 & B550 VALVES
STAINLESS STEEL
HARDCOATED ALUMINUM
CONSTRUCTION
The First Out Indicator with an integral bypass combines the
functions of two valves into one. Its primary function is that of
the First Out Indicator/Indicating Relay-Receiving type (BAA-
3308-550RA or BAA-3308-900RA) as shown on page 21. Ad-
ditionally, an integral bypass valve enables specic circuits to
be bypassed in the event of a malfunction, without shutdown
of the entire system. The additional piping, ttings and labor
usually required to accomplish this feature are thus eliminated
through the use of the Bypass type Indicating Relay valve. The
bypass is accomplished by manually rotating (90°) a detented
lever as part of the valve.
FIRST OUT INDICATOR/INDICATING RELAY-RECEIVING TYPE WITH INTEGRAL BYPASS
Dimensions are approximate.
Consult factory for actual
dimensions of specic valves.