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HEA SERIES PRESSURE-SWING DESICCANT COMPRESSED AIR DRYERS

PROTECTS AIR SYSTEMS EXPOSED TO TEMPERATURES BELOW FREEZING
Produces pressure dew point of -40°C

Delivers dew points of ISO 8573.1 Class 2 (-40°C, -40°F). Labs, Hospitals, Hi-Tech, and Light Industrial installations all benefit from dry air and more floor space.

• Flow rates from 1.5 Nm3/min to 17.3 Nm3/min (55 to 600 scfm)
• Highly accurate solid-state timer
• Front-mounted control panel
• Clean, streamlined piping and utility connections simplify installation
• Automatic operation and stored absorptive energy result in long desiccant life
• HK Series coalescing filter packages available
• ASME steel vessels, support screens, and air diffusers

FEATURES
• Consistent outlet pressure dew points – large desiccant beds produce -40°C (-40°F) pressure dew point [equals an atmospheric dew point of -57°C (-71 °F)]
• Minimum purge air usage – saving the heat of adsorption maximizes the moisture-holding capacity of the purge air, minimizing the amount required
• Long desiccant life – beds sized to prevent fluidization plus slow and complete regeneration prevent desiccant movement and deterioration
• Heavy-duty purge exhaust muffler for quiet operation
• Non-lubricated, soft seated control valves

Highly accurate solid-state timer

• Provides increased desiccant life over units operating on shorter cycles
• Allows off-stream tower to fully repressurize before going on-stream…prevents bed movement and loss of pressure downstream

Accurate and durable process valves

• Inlet/outlet shuttle valves automatically shift to the low-pressure side of the circuit to control process flow
• Shuttle valve life tested to >500,000 cycles
• Purge/repressurization valves are normally closed, pneumatic piston actuated y-angle poppet valves or direct acting solenoid valve.

Front-mounted control panel
• Power on light
• Lighted on-off switch
• Active tower indicator lights

HK Series coalescing filter packages
• Type H oil removal prefilter to 0.01 micron
• Type D dry desiccant after the filter (1 micron)

ASME code vessels, support screens, and air diffusers (top and bottom of vessels)
• Easily removed for cleaning
• Filters out gross contaminants…protects valves
• Prevents channeling
• Completely assembled, piped, and wired
• Shipped with a full charge of desiccant
• Only hook-up of utilities is needed to operate