Part No.: 7610.714.18
Catalog No.: 3227469
Rev. A
01/11
Instruction Manual
Models: HDF1, HDF2, HDF3, and HDF4
GENERAL SAFETY INFORMATION
1. Pressurized devices:
This equipment is a pressure containing device.
• Do not exceed maximum operating pressure as
shown on equipment serial number tag.
• Make sure equipment is depressurized before work-
ing on or disassembling it for servicing.
2. Breathing air:
• Air treated by this equipment may not be suitable
for breathing without further purification. Refer to
OSHA standard 1910.134 for the requirements for
breathing quality air.
1.0 GENERAL DEScRIpTION
Hankison silica gel desiccant dryers are designed
to lower the dew point of compressed air. They
consist of a filter housing filled with silica gel desiccant
through which air passes. As the air passes across
the silica gel desiccant, moisture is adsorbed into
the pores of the silica gel, reducing the moisture
content (dew point) of the outlet air. Once the silica
gel desiccant reaches a level of saturation that causes
the outlet dew point to rise above an acceptable
level, the silica gel desiccant can be either replaced or
regenerated by baking in an oven.
Prefilter
Dryer
SERVICE DEPARTMENT: (724) 746-1100
single tower
desiccant
compressed
air dryer
HdF series
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