BENDIX MC-12 MODULATOR CONTROLLER ASSY Průvodce řešením problémů Strana 29

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More info: visit www.bendix.com 1-800-AIR-BRAKE (1-800-247-2725)
Additional Cont rol Valves
Inversion valves are air operated control valves,
and unlike most control valves are normally open, i.e.
without control pressure the supply is common to the
delivery. The inversion valve is closed by using air
pressure from another source and is primarily used in
emergency or parking brake systems which operate
with air from an isolated reservoir. The valve is also
used in interlocking and sequencing applications,
where the operation of components must take place
in specifi c sequence.
The TR-3
valve is used extensively in DD3
actuator
systems, it is also used in interlocking applications.
A specialized version of the TR-3
valve is available
with an internal channel connecting supply pressure to
control, typically with the external control port plugged.
The SV-1
synchro valve is an air signal-operated,
non-graduating (on-off) control valve offered in a
variety of pressure settings and is used to delay or
sequence the action of other pneumatic devices.
When used in non-automatic applications it controls
a separate air system circuit.
The SV-1
valve can also be used as an automatic
controller (when its supply and control are connected).
The valve will open, close and exhaust automatically
as the control and supply pressures rise or fall.
The PP-5
push pull control valve is a pressure
sensitive, on - off control valve. It is used in conjunction
with vehicle torque converter systems, engine speed
control systems and some parking brake systems.
In addition to automatic exhaust and manual control,
the PP-5
valve employs a pilot air release feature
(interlock) which will allow the valve to be exhausted
by applying a low pressure signal from another control
valve to the PP-5
control port.
The RD-3
is a manually operated on-off control
valve. The valve is spring loaded and will remain in
the exhaust (button out) position. Constant manual
force is required to cause the valve to deliver air. The
RD-3
control valve is primarily used as an emergency
brake release control valve.
TR-3
Valve
SV-1
Synchro
Valve
Additional Control Valves
PP-5
Push-Pull
Control
Valve
RD-3
Control
Valve
The SDS-9600
trailer suspension dump valve is
used on spread axle trailers to help negotiate tight
turns at low speeds. When activated, this valve
exhausts a portion of the air out of the rear trailer axle
suspension, transferring weight to the forward trailer
axle. The trailer can then pivot on the forward trailer
axle in a turn.
SDS-9600
Trailer
Suspension
Dump Valve
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