Energy Machinery, Inc.
10 Reservoir Park Drive Rockland, MA 02370
Phone:781-871-6220 • Fax:781-878-7085• Toll Free:1-800-643-4330
E-Mail: info@energymachinery.com • Web site: www.energymachinery.com
All Categories > Desiccant & Tower Dryers > DHW Series Wall Mount Desiccant Air Dryers > Item # DHW-25  


Item # DHW-25, 25 Standard Cubic Feet per Minute (scfm) Inlet Flow Capacity Wall Mount Desiccant Air Dryer
List Price QUOTE

Optimal System Protection

Hankison’s DHW Series Wall Mount Desiccant Air Dryers protect moisture sensitive applications requiring low pressure dew points. Delivers dew points of ISO 8573-1: 2010 Class 1 (-100 ºF, -73 ºC) and Class 2 (-40 ºF, -40 ºC) with flow rates of 7 to 50 scfm (12 to 85 nm³/h).





Specifications  · Supreme Craftsmanship  · Technology at a Glance  · How it Works  · Applications

Specifications

Inlet Flow Capacity at -40 ºF (-40 ºC)
25 scfm
43 nm³/h

Inlet Flow Capacity at -100 ºF (-70 ºC)
20 scfm
34 nm³/h

Inlet Connection Size
0.5 in

Outlet Connection Size
0.5 in

Inlet Connection Type
NPT

Outlet Connection Type
NPT

Height
31.6 in

Width
24.37 in

Depth
8.54 in

Weight
93 lb

Industry Standards/Certifications
Compressed Air and Gas Institute (CAGI)
ISO 8573-1:2010

Series
DHW

Brands
Hankison®

Dew Points of ISO 8573-1: 2010 Class 1
-100 ºF
-73 ºC

Dew Points of ISO 8573-1: 2010 Class 2
-40 ºF
-40 ºC


Supreme Craftsmanship

Standard Cord Set Size
6 ft
1.8 m

Furnished in Cabinet for Easy Wall Mounting
  • Fully assembled, piped and wired eases installation.
  • Shipped with desiccant charge.

Front Mounted Control Panel
  • Power on light
  • Tower indicator lights
  • On-off switch

Highly Accurate Solid State Timer
  • Standard 4 minute cycle time delivers ISO Quality Class 2 pressure dew point.
  • Flow deration delivers ISO Quality Class 1 pressure dew point.

Optional NGF Series Filter Packages
  • Grade HF coalescing prefilter captures oil down to 0.008 mg/m³.
  • Grade PF after filter removes solids 1.0 micron and larger.


Technology at a Glance
  • Consistent outlet pressure dew points
  • Slow
  • Minimum purge air usage saves energy.
  • Desiccant beds sized to prevent fluidization plus slow and complete regeneration prevents desiccant aging.
  • Heavy-duty purge exhaust muffler for quiet operation.
  • Non-lubricated, soft seated control valves promotes reliable operation.


How it Works
Compressed air enters the dryer and is directed to Tower 1 by valve (A), and then to the dryer outlet through shuttle valve (B). A portion of the dried air is throttled to near atmospheric pressure by means of orifice (C). This extremely dry, low pressure air flows through and regenerates the desiccant in Tower 2 and is exhausted through purge/repressurization valve (D) and exhaust muffler (E) to atmosphere. After a set time, the automatic solid state timer closes purge/ repressurization valve (D) allowing Tower 2 to repressurize slowly. At the end of 2 minutes, valve (A) shifts and purge/repressurization valve (D) reopens.

The main air flow is now dried by Tower 2 while Tower 1 is being regenerated.


Applications
Critical applications include labs, hospitals, pharmaceutical manufacturing and other high-tech installations.



Print Back