BENDIX AD-1 AIR DRYER Manual - Page 2
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The housing assembly consists of two cylindrical steel
stampings welded together. For piping convenience, two inlet
ports, one reservoir port and one purge volume port are
provided in the AD-2
™
air dryer. The side outlet port of the
™
AD-2
air dryer incorporates an integral single check valve
with the top port used for the addition of purge volume.
(Refer to Figure 1)
A safety valve mounted in the housing assembly protects
against excessive pressure build-up within the housing.
The desiccant sealing plate assembly is located mid-way
in the housing assembly and houses a replaceable ball-type
single check. Also located in the plate assembly is the purge
orifice.
PURGE
VOLUME
PURGE
ORIFICE
19-1/2"
INLET
DESICCANT
"O" RING
HEATER
AD-1
FIGURE 2 - SECTIONAL VIEWS
2
5-1/2"
OUTLET
MOUNTING
BRACKET
LOCK
NUT
"O" RING
"O" RING
MOUNTING
OIL
FILTER
RETAINING
PURGE
EXHAUST
VALVE
DEFLECTOR
™
AIR DRYER
The desiccant cartridge and aluminum oil separator filter
are removable and comprise a complete serviceable unit.
The desiccant beads, which are referred to as the "drying
bed", are a drying substance that has the unique property
of exposing a tremendous surface area in proportion to its
bulk. One pound of the desiccant beads has about two
million square feet of adsorptive area made up of a large
number of submicroscopic cavities in each bead. Each
desiccant bead adsorbs or collects moisture.
CHECK
DESICCANT
VALVE
SEALING
PLATE
INLET
SAFETY
VALVE
CARTRIDGE
BOLT
BRACKET
DESICCANT
CARTRIDGE
PURGE
VALVE
RING
PISTON
CONTROL
PORT
THERMOSTAT
PURGE
ELECTRICAL
VALVE
TERMINAL
™
AD-2
AIR DRYER
CHECK
VALVE
OUTLET
LOCK
NUT
SPRING
RETAINER
PERFORATED
PLATE
OIL
FILTER
HEATER
ENCLOSURE