Product specifications

15
SPRING BRAKE CONTROL VALVES
SR-5 TRAILER
SPRING BRAKE VALVE
Die-cast aluminum,
reservoir mounted valve
that controls up to four
spring brake actuators
during parking or
emergency applications.
All threads NPTF.
Anti-Compounding:
Part No. 065437
Part No. OR109615X
R-7 MODULATING VALVE
Usually found on vehicles
with dual air brake systems,
the R-7 modulates the
spring brakes thru the
application of the foot brake
valve in the event of loss of
rear axle service brake pressure.
Spring brake pressure is limited
to 0-95PSI by the R-7.
Part No. 103081N
TRAILER CONTROL
LINE VALVE
Part No. 110580
Provides a balanced control
line signal for uniform
braking of multi-axle
combination vehicles.
3/8" control port,
1/2" res. port, 3/8" del (2)
Includes bracket.
Nom. crack pressure 0.0 psi
LINE FILTER
Used in trailer supply
line ahead of
spring brake
control valve
or relay
emergency
valve.
Part No.
2550
SPRING BRAKE CONTROL VALVE
Spring Brake
Priority System
Complies with all
changes to FMVSS121.
Designed for use with
a single reservoir
on a typical single
or tandem axle
trailer application.
Part No. 110500
(110500 pictured)
Part No. 110501
Repair kit for 110500
Part No. 110800 Has relay feature, fills from the tank
MULTIFUNCTION RT-4
SPRING
BRAKE VALVES
Meets all FMVSS-121
trailer requirements
for spring brake control
and other regulations.
Part No. Port (A) Port (B)
110171
1
/
2
" NPTF
3
/
8
" NPTF
110191
3
/
8
" NPTF
1
/
2
" NPTF
1
/
4
" Trailer
Service
Cover shown w/
optional ant-
compounding.
3
/
8
" Delivery (4)
(A)
Trailer
Service
1
/
4
" Service/
Spring Brake
Reservoir
SR-5
Identification
Hole
1
/
4
" Trailer
Supply
3
/
8
" NPTF
Delivery
Ports (2)
1
/
4
" NPTF
Balance
Ports
1
/
4
"
Control
TRAILER
SUPPLY TRAILER RESERVOIR PPV CLOSING
PART NO.ABCONTROL ABDEL'Y PRESSURE
KN26010
3
/
8
"X
3
/
8
"
1
/
2
"
3
/
8
" (4)
3
/
8
" 70 PSI
KN26020 X
3
/
8
"
3
/
8
"
1
/
2
"
3
/
8
" (4)
3
/
8
" 70 PSI
SPRING BRAKE
CONTROL VALVES
Protected Reservoir System
Four delivery ports.
Cover ports in line
with reservoirs.
Sealco does not recommend
use in trailer control line.
4
1
/
4
"
3
/
8
"
Inlet
3
/
8
"
Outlet
Supply
B
Reservoir
A
Trailer
Control
Reservoir
B
Supply
A
Delivery (4)
Part No. Port (A) Port (B)
110170
1
/
2
" NPTF
1
/
2
" NPTF
110315
1
/
2
" NPTF
3
/
8
" NPTF
SPRING BRAKE
CONTROL VALVES
Protected Reservoir System
Four delivery ports.
Cover ports opposite
of reservoirs.
SPRING BRAKE
CONTROL VALVE
Service Reservoir
Priority System
Complies with all
changes to FMVSS121.
Designed for use with
a single reservoir on a
typical single or tandem
axle trailer application.
Part No. 110700
Note: All of these can be used with (2) 1400
cu. in. reservoirs on tandem axle trailers.
SPRING BRAKE EXHAUST
Part No. 3800
Tee mounted pressure and
quick release valve. on spring
brake applications. Prevents
unwanted application
of spring brakes
due to drop in
supply pressure.
1/4" NPT ports.
Part No. 7800
Tee Mounted
Same application
as 3800.
3
/
8
" Delivery (4)
3
/
8
" Control
3
/
8
" Supply
Reservoir
Port (A)
Reservoir
Port (B)
Reservoir
Port (A)
3
/
8
" Supply
Reservoir
Port (B)
3
/
8
" Delivery (4)
3
/
8
" Control
1
/
4
" Inlet
1
15
/
16
"
Ex-
haust
Out
3
/
8
"
Control
3/8" (4)
Delivery
1
/
2
"
Reservoir
3
/
8
" Supply
3
/
8
"
Control
3
/
8
"
Supply
3/8"
Delivery
3/8"
Delivery
1
/
2
"
Reservoir
SR-1™ SPRING BRAKE VALVE
Part No. OR286364X
1/4" PT ports.
55 psi reservoir trip pressure.
Part No. 288063N (30 psi)
SR-2™ TRAILER SPRING BRAKE VLV
Part No. 103061N
1/4" PT Service/Supply ports.
3/4" male PT reservoir, 3/8" delivery (4)
SR-4™ TRAILER SPRING
BRAKE VALVE
Part No. 101622X
1/4" PT Service/Supply ports.
1/2" male PT reservoir, 3/8" delivery (4)
PR-3
Res. Cont.
Vlv no.
286460N
/ Part No. OR103081X
Plug kit for 110500 and 110700
Part No. 110515