BENDIX SR-7 SPRING BRK MODULATING VALVE Aplicaciones
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®
®
™
Bendix
SR-7
MOUNTING
STUDS (2)
42
CONTROL
PORT
PIPE PLUG
(INCLUDED IN
QUICK RELEASE
VALVE
APPLICATIONS)
FIGURE 1 - EXTERIOR VIEW
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.
Spring Brake Modulating Valve
DELIVERY
EXHAUST
4-1
PARK CONTROL
(FROM DASH
VALVE)
2
1
SUPPLY
PORT
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).
2
3
DELIVERY
EXHAUST
41
BALANCE
PORT
1