Bendix Commercial Vehicle Systems SR-7 SPRING BRK MODULATING VLV 1/11 User Manual
Bendix, Sr-7

1
Bendix
®
SR-7
®
Spring Brake Modulating Valve
SD-03-9043
DESCRIPTION
The Bendix
®
SR-7
®
spring brake modulating valve is used
in conjunction with a dual air brake system and spring brake
actuator and performs the following functions:
1. Provides a rapid application of the spring brake actuator
when parking.
2. Modulates the spring brake actuator application using
the dual brake valve should a primary failure occur in
the service brake system.
3. Prevents compounding of service and spring forces.
The valve has one park control, one service control, one
supply, one balance, four delivery NPTF ports, and an
exhaust port protected by an exhaust diaphragm. The
valve incorporates two mounting studs for mounting the
valve to the frame rail or cross member (where applicable).
MOUNTING
STUDS (2)
EXHAUST
42
CONTROL
PORT
2
DELIVERY
1
SUPPLY PORT
41
BALANCE
PORT
FIGURE 1 - EXTERIOR VIEW
3
EXHAUST
2
DELIVERY
4-1
PARK CONTROL
(FROM DASH VALVE)
PIPE PLUG
(INCLUDED IN QUICK
RELEASE VALVE
APPLICATIONS)
- TU-FLO 400 AIR COMPRESSOR (40 pages)
- TU-FLO 400 AIR COMPRESSOR (16 pages)
- TU-FLO 501 AIR COMPRESSOR 9/04 (36 pages)
- TU-FLO 700 COMPRESSOR 10/04 (36 pages)
- BX2150 AIR COMP (36 pages)
- D-2 GOVERNOR 5/10 (4 pages)
- BRAKE CHAMBERS (4 pages)
- E-6 DUAL BRAKE VALVES 6/10 (8 pages)
- E-6 DUAL BRAKE VALVES 6/10 (6 pages)
- E-7 DUAL BRAKE VALVE (8 pages)
- TC-2 TRAILER CONTROL BRAKE VALVE (4 pages)
- R-12 RELAY VALVES 3/4 (6 pages)
- R-6 RELAY VALVE (6 pages)
- RE-4 RELAY EMERGENCY VALVE (4 pages)
- SR-2 TRAILER SPRING BRAKE VALVE (6 pages)
- TP-2 TRACTOR PROTECTION VALVE 3/04 (4 pages)
- PP-3 TRAILER SUPPLY VALVE 3/04 (4 pages)
- TP-4 TRACTOR PROTECTION VALVE 6/07 (6 pages)
- LQ-2 QUICK RELEASE VALVES 3/04 (4 pages)
- PRESSURE PROTECTION VALVES (4 pages)
- QRV QR-1 QUICK RELEASE VALVES 7/06 (4 pages)
- MV-1 MODUTROL (6 pages)
- TW-N TWO WAY CONTROL VALVE (3 pages)
- R-7 MODULATING VALVE (6 pages)
- LP-2 LOW PRESSURE INDICATORS (4 pages)
- AD-4 AIR DRYER 10/04 (24 pages)
- MANUAL SLACK ADJUSTERS (6 pages)
- AH-4 AIR HYD INTENSIFIER 4/04 (6 pages)
- DV-2 AUTO RESERVOIR DRAIN VLV 10/11 (4 pages)
- BEPA (FORD) 15X4 CAM BRAKE 5/09 (8 pages)
- DOUBLE ANCHOR PIN CAM BRAKE 5/04 (12 pages)
- COMPACT 500 9/87 (27 pages)
- INLET REG VALVE COMP 3/04 (6 pages)
- BP-1 BRAKE PROPORTIONING VALVES (6 pages)
- TU-FLO 600 AIR COMPRESSOR 9/04 (36 pages)
- ROTOCHAMBERS (4 pages)
- DD-3 SAFETY ACTUATORS (6 pages)
- E-2 BRAKE VALVES 10/11 (4 pages)
- E-5 BRAKE VALVE 3/04 (4 pages)
- TC-4 MODULATING CONTROL VALVE (5 pages)
- TC-6 BRAKE VALVE 3/04 (4 pages)
- TC-7 TRAILER CONTROL BRAKE VALVE (4 pages)
- R-8 RELAY VALVE (4 pages)
- RE6 RELAY VALVE 3/05 (12 pages)
- SR-4 SPRING BRAKE CONTROL VLV 7/07 (8 pages)