AI
- 187 Single Stage
The
Dollinger AI-187 single stage air intake filter is designed
to efficiently and economically remove dust, dirt and other
airborne contaminants from the atmosphere in a single stage
panel filter element protecting diesel and gas engines,
blowers, axial compressors and small turbines and, at the
same time, reducing inlet noise.
The AI-187 is designed to be installed either upright –
directly on the engine, blower, compressor or turbine inlet
– or on remote inlet air piping. Dollinger manufactures
18 standard models, available with ranges from 3000 to 72,000
SCFM and bottom outlets ranging in size from 6" to 36" in
diameter. The optional silencing feature provides sound
attenuation up to 16 dB(A).
Housing
Design and Construction
The rigid, all weather galvannealed housing of the AI-187
provides strength of the AI-187 provides strength and corrosion
resistant protection on outdoor installations. All surfaces
are finished with a coat of blue hammertone enamel for long
life and durability. Weatherhoods are provided as standard
equipment. All metal joints of the AI-187 are welded and
caulked as required to prevent dust from entering the unit.
The standard conical safety screen over the filter outlet
prevents small foreign objects from entering the exposed
air intake passage when servicing or replacing panel elements.
A ¼" pressure tap attachment is standard on each housing
for ease of installation. The filter housing may also be
modified or customized to meet special application needs.
Element
Design and Construction
The single-panel element design of the Dollinger AI-187
provides clean air with low pressure loss and high efficiency.
No special tools or parts are required to replace or service
Dollinger panel elements. A pull strap provided across the
face of each element allows fast and simple change out.
The panel element incorporates a pleated media design which
provides optimum filtration area with minimum pressure loss
and large dirt holding capacity. An electrogalvanized steel
frame and synthetic fiber filter medium combine to make
the element cleanable and reusable. A rugged metal frame
and wire mesh guards on the element face provide added durability
and ensure against rough handling and moisture. Each panel
element of the AI-187 can handle flow rates of 3000 SCFM
and provide 99% retention efficiency of 10 microns. After
extended use, the elements may be cleaned with a mild detergent
solution.
Available
Options
When desired, special options and accessories are also available.
These include: Silencing for reduction of air and equipment
noise, providing sound attenuation up to 16 dB(A); Flange
adapters; Top and side outlet designs; Pipe leg supports;
Differential pressure gauges; Special finishes to customer
required standards. Elements with lower micron ratings and/or
higher efficiency ratings are also available.
Panel
Filter Element Element Design Specifications
Element to be panel type, 24" x 24" x 2" nominal.
Each panel to have a nominal rated capacity of 3000 SCFM
of air.
Each panel to incorporate extended surface medium.
Efficiency to be 99% of 10 microns.
Panel to be cleanable type using compressed air or washing
with soap and water or mild detergent or shaking by hand.
Wire screen to be installed on upstream face of panel element,
expanded metal on downstream face.
Plastic strap across face of panel for easy removal.
Element
Material Specifications
Panel frame is galvanized.
Galvanized material is used on upstream face of panel element.
Medium to be polyester.
| PANEL
ELEMENT NO. VE – 1113 – 2424 – 517
|
| Various Panel Ratings (SCFM/Panel) |
Initial Pressure Loss (Inches W.C.) |
| 3000 |
0.70 |
| 2500 |
0.50 |
| 2000 |
0.30 |
PWt.
= 11 lbs. Each
Tests
were conducted in accordance with ASHRAE Standard 52-76
in the Dollinger Research and Development Lab Facility.
