Solberg MiniFS(Pg.2-4) - Manual (Page 6)

Solberg Manufacturing, Inc., 1151 Ardmore Itasca, IL 60143 USA
Ph: 630.773.1363 Fax: 630.773.0727 Email: [email protected] Web: www.solbergmfg.com
Page 6
Rule of Thumb
#
4: Pressure drop is also caused by the dirt holding capacity of
the element. As the element fills up with dirt, the pressure drop increases. It is
important to document the pressure drop across a given filter when it is new and
then clean or replace it when the pressure drop increases b
y 10” to 15” / 250-
280mm H
2
O over the original reading.
Rule of Thumb #5: The inlet connection greatly influences the overall pressure
drop of the filter system. To minimize the restriction contributed by an inlet filter, a
velocity of 6,000 ft/min (10200m
3
/h) or less is suggested through the outlet pipe.
The table below lists the suggested flows based on pipe size:
Pipe Size
(inches)
Max Airflow
1/4" 6 CFM 10 m
3
/hr
3/8" 8 CFM 14 m
3
/hr
1/2" 10 CFM 17 m
3
/hr
3/4" 20 CFM 34 m
3
/hr
1" 35 CFM 60 m
3
/hr
Table 3 *Note: This information is for general use only. A qualified engineer must properly design each system.
3. Element Specifications
Temperature Range: -15° to 220°F / -26° to 105°C
Filter Change-
Out Differential: 10” to 15” / 250-380mm H
2
O Over Initial Delta P
Media Micron Rating
Standard Paper 99+% @ 2 micron
Standard Polyester 99+% @ 5 micron
“Z” Series Polyester
99+% @ 1 micron
“HE” Series HEPA
99.97% @ 0.3 microns
“U” Series Polyester 99+% @ 25 micron
“W” Series Polyester 99+% @ 100 micron
“AC” & “ACP” Series
N/A
Table 4
4. Element Cleaning - Inlet Filtration
Solberg elements should be cleaned or replaced, once the pressure drop
reaches 15 to 20-inches water column (380 - 500mm WC) above the initial
pressure drop of the installation.
The decision to clean the element rather than replace it is left to the discretion of
the operator. Any damage which results from by-pass or additional pressure drop
created by element cleaning is the sole responsibility of the operator.