Section A
Petroleum Trailer Parts
Betts
AIR VALVE ACCESSORIES
AIR DISTRIBUTOR
QUICK-ACTING 1/4 TURNING
EACH VALVE INDEPENDENT
COMPOSITION DISCS
1
Betts Air Distributors have quick-acting /4 turn valves. Each valve operates independently and has long lasting
composition discs. Mounting bracket furnished on all distributors.
No. Comp.
Assembly No.
Weight
Material
1
2
3
4
5
6
7
8
AD25011-1ALB
AD25011-2ALB
AD25011-3ALB
AD25011-4ALB
AD25011-5ALB
AD25011-6ALB
AD25011-7ALB
AD25011-8ALB
1.50
1.80
2.69
3.63
4.50
5.40
6.30
7.40
Alum.
Alum.
Alum.
Alum.
Alum.
Alum.
Alum.
Alum.
Dimensions
A
B
C
5
3
5- /16
4”
1- /4
5
3
5- /16
4”
1- /4
5
3
5- /16
6”
1- /4
5
3
5- /16
8”
1- /4
5
3
5- /16
10”
1- /4
5
3
5- /16
12”
1- /4
5
3
5- /16
14”
1- /4
5
3
5- /16
16”
1- /4
6
1" NPT (TYP.)
8
5
4
3
2
1
No.
1
2
3
4
5
6
Description
Stem
Upper Seat
Gasket
Comp Disc.
Disc Holder
Disc Ret. Nut
PARTS LIST
Req.
Material
1
Aluminum
1
Aluminum
1
Fiber
2
Buna-N
1
Aluminum
1
Stainless
Part No.
AD15008AL
AD15009AL
AD15518FB
AD15011BN
AD15010AL
AD16868SL
NOTE: For complete replacement sub-assembly
(Items 1-6) order Part No. AD17826ALBN.
TM
INDUSTRIES, INC.
WARREN, PA.
138
Spartanburg, SC - Phone: 800.828.6555 - Fax: 864.583.1550
Cincinnati, OH - Phone: 866.879.9773 - Fax: 513.860.1355
Chicago, IL - Phone: 800.621.7131 - Fax: 708.442.9229
www.littlejohninc.com
Jan 1989
Section 31 Page 1A
AIR VALVE ACCESSORIES
MASTER CONTROL VALVE
Section A
Petroleum Trailer Parts
Betts
The Master Control Valve is a push button type
on-off valve, spring loaded to the closed position.
It is designed for use when the emergency valve
air system is operated with air from the brake
system.
No.
1
2
3
4
Parts List
Req’d.
Knob
1
Stem & Diaphragm
1
Perforated Diaphragm
1
Spring
1
Description
Material
Alum.
Brass
Buna-N
Steel
Part No.
16917AL
17379BR
17379BN
17379MS
Pressure Range……………………………..……… 0 to 125 PSI
Temperature Range………………………………. –20° to 225°F
Air Flow (CFM to atmos.)………………… Multiply PSI by: 0.60
7
19
Four /32 Dia. Holes on 1 /32 sq. centers
Description
Master Control Valve
A
1
1 /4
B
3
2 /8
C
15
/16
D
1
2 /4
ATTACH FITTING
Note: All connections 1/4 NPT
Material
Wt.
Assembly No.
Steel/Buna-N
.8
MC 16350 CP-B
INTERFERENCE CONTROL VALVE
Assy. No. 15021MS
Assy. No. IC17128BR
Used as a mounting device for the fusible
and frangible plug.
Closes all emergency valves when plunger is
actuated by cabinet door or other means.
TM
INDUSTRIES, INC.
WARREN, PA.
Aug 1995
Section 31 Page 3A
Spartanburg, SC - Phone: 800.828.6555 - Fax: 864.583.1550
Cincinnati, OH - Phone: 866.879.9773 - Fax: 513.860.1355
Chicago, IL - Phone: 800.621.7131 - Fax: 708.442.9229
www.littlejohninc.com
139
FUSIBLE PLUG
FUSIBLE & FRANGIBLE PLUG
Assy. No. FP15003BR
Assy. No. FP15017BR
2F
21
Section A
Petroleum Trailer Parts
Betts
Thawing 220-225°F
Thawing of a plug dumps air and closes
all emergency valves and air operated
vents.
Breaking of frangible device or thawing of
plug dumps air and closes all emergency
valves and air operated vents.
CHECK VALVE
PRESSURE GAUGE
Assy. No. CK25107BR
Assy. No. PG16349MS
0
40
80 120 1
60
PRESSURE
Used in conjunction with hand pump to
check return air.
No.
1
2
3
Description
Body
Stem
Sleeve
Req.
1
1
1
Part No.
16896BR
16897BR
16007BN
1/8” N.P.T. Fitting
TM
INDUSTRIES, INC.
WARREN, PA.
140
Spartanburg, SC - Phone: 800.828.6555 - Fax: 864.583.1550
Cincinnati, OH - Phone: 866.879.9773 - Fax: 513.860.1355
Chicago, IL - Phone: 800.621.7131 - Fax: 708.442.9229
www.littlejohninc.com
Jan 1989
Section 31 Page 3B




Section A
Petroleum Trailer Parts
Betts
The Betts air distributor is designed as a
corrosion resistant, modular, lightweight
and compact air distribution system that
can be used to control any sequential or
non-sequential air operated valve or vent
system.
The distributor body is made from
anodized aluminum, with internal parts
made from brass and stainless steel with
nitrile seals. The individual valve toggle
switches are easily accessible for
replacement.
Push-to-connect fittings
are included to allow quick and easy
installation with ¼” air lines.
The air distributor includes a push-pull
master control valve.
The push-pull
master control is a two position detent
valve. Pull the knob out and the system
is charged with air. Push the knob in and
the air is fully vented from the system.
A pressure wink changes from black to
green to indicate the system is charged.
The individual compartment toggle valves
are used to open and close the
emergency valves. The master control
valve can be used as a complete system
shutdown. If the master control knob is
depressed to the detent exhaust position,
air is fully vented from the system
shutting down all valves/vents connected
to the toggle outlets.
Description
Part Number
1 Compartment
2 Compartment
3 Compartment
4 Compartment
5 Compartment
AD28563-1ALB
AD28563-2ALB
AD28563-3ALB
AD28563-4ALB
AD28563-5ALB
A
in. [mm]
4.25 [108]
5.50 [139.7]
6.75 [171.5]
8.00 [203.2]
9.25 [235]
Weight
lb. [kg]
1.01 [.46]
1.34 [.61]
1.67 [.75]
2.00 [.91]
2.33 [1.06]
Maximum Operating Pressure = 125 psi [9 bar]
compressed air.
Temperature Range = -20°F to 180°F [-29°C to
82°C]
• See maintenance manual MM-AD001 for more information.
• Mount with exhaust ports unobstructed.
TM
June 2009
Section 31 Page 1D
Spartanburg,
SC - Phone: 800.828.6555 - Fax: 864.583.1550
Tel. (814) 723-1250 ⋅ Fax (814) 723-7030 ⋅ E-Mail: betts@bettsind.com ⋅ Web Site: www.bettsind.com

Cincinnati, OH - Phone: 866.879.9773 - Fax: 513.860.1355
Chicago, IL - Phone: 800.621.7131 - Fax: 708.442.9229
www.littlejohninc.com
141
Section A
Petroleum Trailer Parts
Betts




The Betts air distributor is designed as a
corrosion resistant, modular, lightweight
and compact air distribution system that
can be used to control any sequential or
non-sequential air operated valve or vent
system.
The distributor body is made from
anodized aluminum, with internal parts
made from brass and stainless steel with
nitrile seals. The individual valve toggle
switches are easily accessible for
replacement.
Push-to-connect fittings
are included to allow quick and easy
installation with ¼” air lines.
The air distributor includes a spring
neutral master control valve that allows
for the air system to be manually charged
and automatically isolates the system
from the air supply when the master
control is released. Isolation of the air
supply allows for more effective
emergency shut down by a fusible plug
or end of line remote.
A pressure wink changes from black to
green to indicate the system is charged.
The individual compartment toggle valves
are used to open and close the
emergency valves. The master control
valve can be used as a complete system
shutdown. If the master control knob is
depressed to the detent exhaust position,
air is fully vented from the system,
shutting down all valves/vents connected
to the toggle outlets.
Description
Part Number
1 Compartment
2 Compartment
3 Compartment
4 Compartment
5 Compartment
AD28483-1ALB
AD28483-2ALB
AD28483-3ALB
AD28483-4ALB
AD28483-5ALB
A
in. [mm]
4.25 [108]
5.50 [139.7]
6.75 [171.5]
8.00 [203.2]
9.25 [235]
Weight
lb. [kg]
1.01 [.46]
1.34 [.61]
1.67 [.75]
2.00 [.91]
2.33 [1.06]
Maximum Operating Pressure = 125 psi [9 bar]
compressed air.
Temperature Range = -20°F to 180°F [-29°C to
82°C]
• See maintenance manual MM-AD001 for more information.
• Mount with exhaust ports unobstructed.
TM
142
Spartanburg, SC - Phone: 800.828.6555 - Fax: 864.583.1550
Cincinnati,
OH - Phone:
866.879.9773
Fax: 513.860.1355
Tel.
(814) 723-1250
⋅ Fax (814)
723-7030 ⋅ -E-Mail:
betts@bettsind.com ⋅ Web Site: www.bettsind.com
Chicago, IL - Phone: 800.621.7131 - Fax: 708.442.9229
www.littlejohninc.com
June 2009
Section 31 Page 1C




Section A
Petroleum Trailer Parts
Betts
The Betts air distributor is designed as a
corrosion resistant, modular, lightweight and
compact air distribution system that can be
used to control any sequential or nonsequential air operated valve or vent system.
The distributor body is made from anodized
aluminum, with internal parts made from brass
and stainless steel with nitrile seals. The
individual valve toggle switches are easily
accessible for replacement. Push-to-connect
fittings are included to allow quick and easy
installation with ¼” air lines.
The air distributor includes a spring neutral
master control valve that allows for the air
system to be manually charged and
automatically isolates the system from the air
supply when the master control is released.
Isolation of the air supply allows for more
effective emergency shut down by a fusible
plug or end of line remote. Pull and hold the
master control knob out to send air to the
sequential vapor valves. Once the vapor
valves have all opened, the air is returned to
the master control and enters the “VENT
RETURN” port.
A pressure wink changes from black to green
to indicate air is back to the master control
from the vents and the system is charged.
The individual compartment toggle valves are
used to open and close the emergency valves.
The master control valve can be used as a
complete system shutdown. If the master
control knob is depressed to the detent
exhaust position, air is fully vented from the
system shutting down all valves/vents
connected to the toggle outlets.
Description
Part Number
1 Compartment
2 Compartment
3 Compartment
4 Compartment
5 Compartment
AD36097-1ALB
AD36097-2ALB
AD36097-3ALB
AD36097-4ALB
AD36097-5ALB
A
in. [mm]
4.25 [108]
5.50 [139.7]
6.75 [171.5]
8.00 [203.2]
9.25 [235]
Weight
lb. [kg]
1.35 [.61]
1.68 [.77]
2.01 [.92]
2.34 [1.07]
2.67 [1.22]
Maximum Operating Pressure = 125 psi [9 bar]
compressed air.
Temperature Range = -20°F to 180°F [-29°C to
82°C]
• See maintenance manual MM-AD001 for more information.
• Mount with exhaust ports unobstructed.
TM
June 2009
Section 31 Page 1F
Spartanburg,
SC - Phone: 800.828.6555 - Fax: 864.583.1550
Tel. (814) 723-1250 ⋅ Fax (814) 723-7030 ⋅ E-Mail: betts@bettsind.com ⋅ Web Site: www.bettsind.com

Cincinnati, OH - Phone: 866.879.9773 - Fax: 513.860.1355
Chicago, IL - Phone: 800.621.7131 - Fax: 708.442.9229
www.littlejohninc.com
143
Section A
Petroleum Trailer Parts
Betts




The Betts air distributor is designed as a
corrosion resistant, modular, lightweight and
compact air distribution system that can be used
to control any sequential or non-sequential air
operated valve or vent system.
The distributor body is made from anodized
aluminum, with internal parts made from brass
and stainless steel with nitrile seals.
The
individual valve toggle switches are easily
accessible for replacement. Push-to-connect
fittings are included to allow quick and easy
installation with ¼” air lines.
The air distributor includes a push-pull master
control valve. The push-pull master control is a
two position detent valve. Pull and hold the
master control knob out to send air to the
sequential vapor valves. Once the vapor valves
have all opened, the air is returned to the master
control and enters the “VENT RETURN” port.
A pressure wink changes from black to green to
indicate air is back to the master control from the
vents and the system is charged.
The individual compartment toggle valves are
used to open and close the emergency valves.
The master control valve can be used as a
complete system shutdown. If the master
control knob is depressed to the detent exhaust
position, air is fully vented from the system
shutting down all valves/vents connected to the
toggle outlets.
Description
Part Number
1 Compartment
2 Compartment
3 Compartment
4 Compartment
5 Compartment
AD36098-1ALB
AD36098-2ALB
AD36098-3ALB
AD36098-4ALB
AD36098-5ALB
A
in. [mm]
4.25 [108]
5.50 [139.7]
6.75 [171.5]
8.00 [203.2]
9.25 [235]
Weight
lb. [kg]
1.35 [.61]
1.68 [.77]
2.01 [.92]
2.34 [1.07]
2.67 [1.22]
Maximum Operating Pressure = 125 psi [9 bar]
compressed air.
Temperature Range = -20°F to 180°F [-29°C to
82°C]
• See maintenance manual MM-AD001 for more information.
• Mount with exhaust ports unobstructed.
TM
144
Spartanburg,
SC⋅ - Fax
Phone:
- Fax: betts@bettsind.com
864.583.1550
Tel.
(814) 723-1250
(814)800.828.6555
723-7030 ⋅ E-Mail:
⋅ Web Site: www.bettsind.com
Cincinnati, OH - Phone: 866.879.9773 - Fax: 513.860.1355
Chicago, IL - Phone: 800.621.7131 - Fax: 708.442.9229
www.littlejohninc.com
June 2009
Section 31 Page 1G
Section A
Petroleum Trailer Parts
Miscellaneous
QE2
193
76072-15
15psi switch
250V
250VB includes base
Spartanburg, SC - Phone: 800.828.6555 - Fax: 864.583.1550
Cincinnati, OH - Phone: 866.879.9773 - Fax: 513.860.1355235
Chicago, IL - Phone: 800.621.7131 - Fax: 708.442.9229
www.littlejohninc.com
145