BD Power
Positive Air Shutdown (PAS)
2007.5-09 6.7L Dodge Cummins
When you need an emergency engine shutdown system, then BD has the
solution that is hard to pass up. Some industries such as mining, oil
refinery, forestry, mobile welding, septic removal and refueling require
some vehicles to have an emergency engine shutdown in place. The most
effective method for this is to cut the air supply to the engine,
ensuring fuel ignition to cease. With BD’s Positive Air Shutdown (PAS),
an inline butterfly valve is placed in the air intake line, and when
activated by its heavy duty electrical solenoid, the engine will
shutdown within seconds.
Standard applications include
automatic over-speed electronics and CAC pipes included for some
vehicles. The PAS butterfly valve design reduces the number of parts and
the overall size as compared to competitive units. Aluminum and
stainless components, plus weatherproof electrical connectors are used
to prevent corrosion. Easy installation with no welding needed for hose
retaining beads by utilizing innovative bead boot locks.
The Positive Air Shutdown is available
with two different switching mechanisms. For most applications
mentioned above, there is the system that includes an electronic
overspeed protection that watches the TPS (Throttle Position Sensor)
versus engine RPM and will shut the valve anytime engine RPM increases
substantially without applied throttle. The second way this is
available is with a simple mechanical on/off switch, which is especially
great for sled pullers or drag racers which require an air shutoff for
certain pulling/racing regulations.