BENDIX SD-08-2403 manual Sectional Views

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.

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.

5-1/2”

PURGE

VOLUME

PURGE

ORIFICE

19-1/2”

INLET

DESICCANT

OUTLET

MOUNTING

BRACKET

LOCK

NUT

CHECK DESICCANT

VALVE SEALING PLATE

“O” RING

“O” RING

INLET

SAFETY

VALVE

CARTRIDGE

BOLT

MOUNTING

BRACKET

DESICCANT

CHECK

VALVE

OUTLET

LOCK

NUT

SPRING

RETAINER

PERFORATED

PLATE

“O” RING

OIL

CARTRIDGE

OIL

FILTER

PURGE

RETAINING VALVE

RING PISTON

CONTROL

PORT

FILTER

HEATER

THERMOSTAT

ENCLOSURE

HEATER

PURGE

VALVE

EXHAUST

PURGE VALVE

ELECTRICAL

TERMINAL

DEFLECTOR

AD-1™AIR DRYER AD-2™AIR DRYER

FIGURE 2 - SECTIONAL VIEWS

2