1
®
SD-08-187B
Bendix
®
PuraGuard QC
™
Oil Coalescing Filter
DESCRIPTION
The PuraGuard QC
™
oil coalescing filter provides purified
compressed air on any air braked vehicle. It consists of a
spin-on housing, or cartridge, mounted to an aluminum body.
The spin-on cartridge contains a drain valve for maintenance.
For ease of serviceability, the spin-on cartridge can be
removed without disconnecting the supply and delivery lines
of the PuraGuard QC
™
oil coalescing filter from its mounting
on the vehicle.
Vehicles operate best with clean, dry compressed air. The
PuraGuard QC
™
oil coalescing filter removes approximately
90% of oil aerosols and particulates down to 1 micron in
size, but it must be used in a system with and follow an air
dryer.
OPERATION
GENERAL
(See Figure 2)
Compressed air passes through the supply port of the
PuraGuard QC
™
oil coalescing filter and travels downward
through the center of the filter element. As the air passes
through the filter material, oil in liquid and aerosol form are
removed and collected in the sump. The PuraGuard QC
™
filter also collects solid particles 1 micron and larger. The
cleaned air travels back up from the sump, through the
delivery port and into the air system.
FIGURE 2 - CUT-AWAY SHOWING AIR FLOW
SEAL
SUPPLY
PORT
FIGURE 1 - PURAGUARD QC
™
OIL COALESCING FILTER
DELIVERY
PORT
SUPPLY
PORT
TOP
VIEW
ONE SUPPLY & ONE DELIVERY PORT
(SEE ARROW SYMBOL ON THE BODY
FOR AIR FLOW)
DRAIN VALVE
MOUNTING
BRACKET
PURAGUARD
BODY
SPIN-ON
CARTRIDGE
EXTERIOR
VIEW
SPRING
FILTER
DELIVERY
PORT
SPRING
LOCATOR
DRAIN
PORT
1 SUP
2 DEL
