Solberg Inlet Vacuum Filters User Manual

®

SOLBERG

Vacuum Filters

Maintenance Manual

CSL, CT, VS, VL,

SM-CT, CSS, and CBL Series

Metric Version

Solberg International, Ltd., 1151 Ardmore Avenue, Itasca IL 60143

Ph: 630/616-4900 Fax: [phone] Email: [e-mail] Web: www.solbergmfg.com

Vacuum Inlet Filters March, 2000

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SSeeccttiioonn AA

Introduction .......................................................................................pg. 3

SSeeccttiioonn BB

General Information

1. Identification of Solberg Filters ..........................................pg. 3

2. Filtration Rules of Thumb..................................................pg. 5

3. Element Specifications......................................................pg. 7

4. Element Cleaning..............................................................pg. 8

SSeeccttiioonn CC

Procedures

1. Installation.........................................................................pg. 8

2. Disconnecting Canister Top from Base.............................pg. 8

3. Removing Element for Service/Maintenance....................pg. 9

4. Securing Element..............................................................pg. 9

5. Securing Canister Top to Canister Base........................... pg. 10

SSeeccttiioonn DD

Maintenance Recommendations

1. General..............................................................................pg. 10

2. Spare Parts List.................................................................pg. 11

*For Further Information Please Call: [phone]

Solberg International, Ltd., 1151 Ardmore Avenue, Itasca IL 60143

Ph: 630/616-4900 Fax: [phone] Email: [e-mail] Web: www.solbergmfg.com

Vacuum Inlet Filters (Metric) March, 2000

Page 2

SOLBERG

Section A

INTRODUCTION

The purpose of this manual is instruction on the proper assembly and care of
Solberg vacuum inlet filters.

WARNING!

This manual must be read and thoroughly
understood before using and caring for this
air filter. Failure to comply could result in
explosion, product/system contamination
or personal injury.

This manual should be used as a supplement to the user’s understanding of the
proper care needed to maintain a safe and dependable air filter. It is the
responsibility of the user to interpret and explain all instructions to persons who
do not read or understand English BEFORE they are allowed to maintain and
use this filter.

This manual should be readily available to all operators responsible for operation
and maintenance of the vacuum inlet filters.

We thank you for selecting products from Solberg Manufacturing, Inc. We are
confident that our superior filter designs will exceed your application
requirements.

Section B

GENERAL INFORMATION

1. Identification of Solberg Vacuum Inlet Filters.

All Solberg vacuum inlet air filters should have an identification label/nameplate
that gives the following information:

Assembly Model #

Replacement Element #

(The exception is OEM supplied units. In this case please enter the OEM part
numbers below.)

Solberg International, Ltd., 1151 Ardmore Avenue, Itasca IL 60143

Ph: 630/616-4900 Fax: [phone] Email: [e-mail] Web: www.solbergmfg.com

Vacuum Inlet Filters (Metric) March, 2000

Page 3

SOLBERG

Fill in the actual nameplate data from your new Solberg inlet filter(s):

No. Filter Model

Number

Replacement

Element

1
2
3
4
5
6
7
8

9
10
11
12
13
14
15

The model number designates the filter type, the original element configuration
and housing connection size. For example, the following part number identifies
the filter as being a ‘CSL’ design filter with a 234 element with prefilter and 3”
BSPT connection size:

CSL-234P-301

Filter Type:

CSL, CT, CSS,
VS, VL, CBL

Element Type:
Size, Material,
Prefilter, Micron
Rating

Connection
Size and Type

Solberg International, Ltd., 1151 Ardmore Avenue, Itasca IL 60143

Ph: 630/616-4900 Fax: [phone] Email: [e-mail] Web: www.solbergmfg.com

Vacuum Inlet Filters (Metric) March, 2000

Page 4

SOLBERG

2. Filtration Rules of Thumb
General: For peak output performance from a compressor, blower, vacuum

pump, engine, or any other machine that consumes air, one must have clean,
unrestricted air. Proper filtration can help stabilize the working environment within
rotating equipment even when the external conditions may be quite severe. A
critical component in creating the right working conditions is filter sizing. With the
properly sized filter, equipment will run smoothly over its entire expected
operating life.

A major factor in filtration and filter sizing is air velocity through the filter media.
Generally, the slower the velocity of air through a media the higher the filter
efficiency and, conversely, the lower the pressure drop. Therefore, the primary
goal in filter sizing is to optimize the velocity of air through the media (sometimes
called face velocity).

Rule of Thumb #1: Always begin with the filter cartridge requirements when
sizing a filter. Once the appropriate element has been selected then move on to
the housing requirements.

Rule of Thumb #2: Always ask or specify a filter based on a micron rating with
filtration efficiencies. As an example, stating a requirement for a 5-micron filter is
misleading because no efficiency rating has been specified. A 5-micron filter at
97-% efficiency can be less efficient than a 10-micron filter at 99.7% efficiency.
For proper air system performance in light and industrial duty environments, a
filter with a minimum of 99.7% filtration efficiency at 10 microns is required.

Rule of Thumb #3: Size your filter correctly by understanding the impact air
velocity through a media has on efficiency and pressure drop. Maintain the
suggested Air-to-Media ratios listed below based on the external environment
listings and Filtration efficiency needs.

Solberg International, Ltd., 1151 Ardmore Avenue, Itasca IL 60143

Ph: 630/616-4900 Fax: [phone] Email: [e-mail] Web: www.solbergmfg.com

Page 5

Vacuum Inlet Filters (Metric) March, 2000

SOLBERG

Filtration Efficiency

Requirements

Environmental Conditions Air to Media Ratio

(99+% efficiency)

Industrial Grade 2-micron

Paper

Industrial Grade 5-micron

Polyester

Industrial Grade 4-micron

Polyester

Industrial Grade 1-micron

Polyester

Industrial Grade 0.3-micron

HEPA Glass

Light Duty (clean,
office/warehouse-like)
Industrial Duty (workshop,
factory-like)
Severe Duty (Foundry,
Construction-like)
Light Duty (clean,
office/warehouse-like)
Industrial Duty (workshop,
factory-like)
Severe Duty (Foundry,
Construction-like)
Industrial Duty (workshop,
factory-like)
Severe Duty (Foundry,
Construction-like)
Severe Duty (Foundry,
Construction-like)
Light Duty (clean
office/warehouse-like)
Industrial Duty (workshop,
factory-like)
Severe Duty (Foundry,
Construction-like)

51 m3/h

25.5 m3/h
17 m3/h

3

85 m

/h

68 m3/h

42.5 m

3

/h

42.5 m3/h

25.5 m3/h
17 m3/h
17 m3/h
12 m3/h

8.5 m3/h

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 by 250 mm to 380
H2O from 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 1,829 m/min or less is suggested through the outlet pipe. The table
below lists the suggested flows based on pipe size:

Solberg International, Ltd., 1151 Ardmore Avenue, Itasca IL 60143

Ph: 630/616-4900 Fax: [phone] Email: [e-mail] Web: www.solbergmfg.com

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Vacuum Inlet Filters (Metric) March, 2000

SOLBERG

Pipe Size

(inches)

Max Airflow

Pipe Size

(inches)

Max Airflow

Pipe Size

(inches)

Airflow

1/4" 10 m3/h 1 ¼" 102 m3/h 6" 1870 m3/h
3/8" 14 m3/h 1 ½" 136 m3/h 8" 3060 m3/h
1/2" 17 m3/h 2" 230 m3/h 10" 5610 m3/h
3/4" 34 m3/h 2 ½" 332 m3/h 12" 7990 m3/h

1" 60 m3/h 3" 510 m3/h 14" 10200 m3/h

*Note: This information is for general use only. A qualified engineer must properly design each system.

4" 884 m3/h
5" 1360 m3/h

3. Element Specifications

Media

Micron Rating

Temperature

Range

Filter Change-Out

Differential

Standard Paper 99+% @ 2 micron -26 to 105 C 250-380 mm H2O

Over Initial Delta P
Standard
Polyester

99+% @ 5 micron -26 to 105 C 250-380 mm H2O

Over Initial Delta P
“N” Series 99+% @ 4 micron -26 to 105 C 250-380 mm H2O

Over Initial Delta P
“Z” Series 99+% @ 1 micron -26 to 105 C 250-380 mm H2O

Over Initial Delta P
HEPA “HE” Series 99.97% @ 0.3

microns

“U” Series 99+% @ 25

micron

“W” Series 99+% @ 100

micron

“S1” Series Stainless Steel

Wire Mesh

“AC” & “ACP”

N/A -26 to 105 C 250-380 mm H2O
Series
“Y” Series
Polypropylene
“MX” & “MXD”
Series – Nomex

99+% @ 10

micron

99+% @ 10

micron

-26 to 105 C 250-380 mm H2O
Over Initial Delta P

-26 to 105 C 250-380 mm H2O
Over Initial Delta P

-26 to 105 C 250-380 mm H2O
Over Initial Delta P

-26 to 105 C 250-380 mm H2O
Over Initial Delta P

Over Initial Delta P

-26 to 105 C 250-380 mm H2O
Over Initial Delta P

-26 to 105 C 250-380 mm H2O
Over Initial Delta P

Cloth

Solberg International, Ltd., 1151 Ardmore Avenue, Itasca IL 60143

Ph: 630/616-4900 Fax: [phone] Email: [e-mail] Web: www.solbergmfg.com

Page 7

Vacuum Inlet Filters (Metric) March, 2000

SOLBERG

4. Element Cleaning

Some types of Solberg inlet filter elements can be cleaned and reused.
However, damage can occur to an element during cleaning so it is imperative
that care is taken during disassembly, cleaning and re-assembly. Damaged
elements can allow particulate bypass, which will damage rotating equipment.

A. Polyester Element: The polyester element may be washed in warm

soapy water, vacuumed, gently blown out or replaced. The element
should be dry before reinstallation.

B. Paper Element : The paper element may be lightly blown with low

pressure air. It is disposable and in most cases should be replaced with a
new element.

C. Polyurethane Prefilter: The prefilter may be washed as a sponge or

replaced to give the element a longer service life.

D. Stainless Steel Wire Mesh Element: Cleaning instructions similar to

polyester, except mild solvents may be used.
E. Activated Carbon Element: Not cleanable
F. Polypropylene Element: Cleaning instructions similar to polyester
G. Nomex Cloth Element: Cleaning instructions similar to polyester

If you are not confident that the integrity of the element was maintained during
cleaning, it is recommended that a new element be installed. Also, spare parts
such as gaskets, wingnuts and washers can be supplied upon request.

Section C

PROCEDURES

1. Installation.

A. Maximum inlet gas stream temperature for most Solberg inlet vacuum

filter products is 105 degrees C. Temperatures in excess of this could

cause damage to elements, media and elastomers.
B. Direction of flow is typically from the outside of the element to the inside of

the element. Most products have arrows indicating direction of flow on

inlet and outlet ports.
C. Ensure that pipe/flange connections are adequately sealed so the

potential for leaks is reduced to a minimum.

Solberg International, Ltd., 1151 Ardmore Avenue, Itasca IL 60143

Ph: 630/616-4900 Fax: [phone] Email: [e-mail] Web: www.solbergmfg.com

Vacuum Inlet Filters (Metric) March, 2000

Page 8

SOLBERG

2. Disconnecting canister top from canister base.

A. VS/VL: Remove V-clamp by loosening Hex Nut or T-bolt and releasing.
B. CT/Small CSL/CBL: Release wire-form clips.
C. Large CSL: Loosen wing-nut or hex head on T-bolts.
D. CSS: Twist upper housing to release.
E. Lift off canister top.

3. Removing element for service/maintenance.

A. Remove retaining hex head/wing-nut and washer carefully, and then

remove element. Some elements will have a top plate that should also be

removed. Note: Model “CSS” elements should be free when housing tops

are removed.
B. Clean sealing surfaces of housing, top & base plates, and element

endcaps so that they are free of dirt or any other particulate.

WARNING!

Failure to comply with these instructions
may result in system or pump contamination.

4. Securing Element.

A. Place new or cleaned element evenly on base plate. Be sure element

seats properly on base and there is no dirt or particulate present on

sealing surfaces.
B. Place top plate (if necessary) on element by centering on tap bolt.
C. Secure washer and wing nut to end cap (or top plate) and tap bolt.

Element must be tightly secured. Note: DO NOT over tighten!

WARNING!

Defective installation may cause system or
pump contamination. Use only genuine
Solberg replacement parts.

Solberg International, Ltd., 1151 Ardmore Avenue, Itasca IL 60143

Ph: 630/616-4900 Fax: [phone] Email: [e-mail] Web: www.solbergmfg.com

Vacuum Inlet Filters (Metric) March, 2000

Page 9

SOLBERG

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5. Securing canister top to canister base.

A. Make sure all surfaces are free from dust and other particulate.
B. Hemisphere o-ring must rest evenly along canister/casting base o-ring

groove.
C. VS/VL: Secure V-clamp by disconnecting hex nut or T-bolt portion and

placing V-clamp along the diameter of canister o-ring groove. Fasten T-

bolt and secure tightly. V-CLAMP LEGS MUST REST UNIFORMLY

ALONG ENTIRE O-RING GROOVE.
D. CT/Small CSL/CBL: Hold canister housing against o-ring or sealing ring

on main filter head. Re-fasten wire-form clips.
E. Large CSL: Replace housing top plate. Feed T-bolts into corresponding

slots and tighten evenly around perimeter. Note: Do NOT over tighten!
F. CSS: Reassemble top housing to bottom housing by aligning tabs and

turning into place.

Section D

MAINTENANCE RECOMMENDATIONS

1. Pressure drop readings are recommended to have an effective air filter.
Always document initial pressure drop during start-up when element is clean.
Replacement cartridge is needed when system experiences 250 mm to
380 mm H2O higher pressure drop above the initial reading. Refer to page 4
for instructions.

2. Always check replacement cartridge gaskets to insure they are adhered
uniformly along the end caps during handling. If not, contact Solberg
Manufacturing, Inc. immediately. Do not modify or change from Solberg
specified parts!

3. Always check inlets/outlets, element base and its components when replacing
element to insure cleanliness. Wipe clean if necessary.

4. Operate only when a proper seal exists.

5. VS/VL: Never operate without absolute assurance that V-clamp is secured
correctly along entire diameter of canisters. Check along V-clamp for wear.
Replace if any distortion occurs due to handling and usage.

Solberg International, Ltd., 1151 Ardmore Avenue, Itasca IL 60143

Ph: 630/616-4900 Fax: [phone] Email: [e-mail] Web: www.solbergmfg.com

Page 1

Vacuum Inlet Filters (Metric) March, 2000

SOLBERG

t

SPARE PARTS LIST: CSL, CT, VS, VL, CSS, AND CBL

Housing Element

Gasket(s)/

Parent M odel Prefilter Top O-Ring Adapter W ingnut(s) Washer(s)

Model-Element-Connection M odel Model No. Model No. Model No. Model No. Model No.

CSL-825/824-xxx N/A T824 O R337 B G224 N/A N/A CPWF N/A N/A N/A
CSL-843/842-xxx PF842 T842 O R550 B G268 N/A N/A CPWF N/A N/A N/A
CSL-849/848-xxx PF848 T848 O R675 B G281 N/A N/A CPWF N/A N/A N/A
CSL-851/850-xxx PF850 T850 O R750 B G412 N/A N/A CPWF N/A N/A N/A
CSL-239/238-xxx PF238 TD238 OR1250 N/A N /A N/A CPWF N/A WN38X16 WR38X16
CSL-235/234-xxx PF234 TC1400 OR 1200 N/A WN 38X16 WR38X16 BT38163 T8000437 WN38X16 WR38X16
CSL-335/334-xxx PF334 TC1400 OR 1200 ADEX300 WN38X 16 WR38X 16 BT38163 T8000437 WN38X 16 WR38X16
CSL-245/244-xxx PF244 TC1850 OR 1600 N/A WN 38X16 WR38X16 BT38163 T1000437 WN38X16 WR38X16
CSL-345/344-xxx PF344 TC1850 OR 1600 ADEX300 WN38X 16 WR38X 16 BT38163 T1000437 WN38X 16 WR38X16
CSL-275/274-xxx PF274 TC1850 OR 1600 N/A WN 38X16 WR38X16 BT38163 T12000437 W N38X16 WR38X16
CSL-375/374-xxx PF374 TC1850 OR 1600 ADEX300 WN38X 16 WR38X 16 BT38163 T12000437 WN38X16 WR38X16
CSL-377/376-xxx PF376 TC2250 OR 2000 N/A WN 38X16 WR38X16 BT38163 T14750625 H N50X13 WR 50X13
CSL-384(2)-xxx PF384(2) N/A OR2400 N/A WN38X 16 WR38X 16 BT38163 T19750625 HN50X13 WR50X 13
CSL-685-xxx PF684 N/A OR2400 N/A WN38X 16 WR38X16 BT38163 T19750625 HN50X13 WR 50X13
CSL-485(2)/484(2)-xxx PF484(2) N /A OR 2400 N/A WN38X16 WR38X16 BT38163 T19750625 HN50X13 WR50X 13
CT-851/850-xxx PF850 N/A OR 725 BG 412 N/A N/A CPWF N/A N/A N/A
CT-235/234-xxx PF234 N/A GC T1100 ADCT 234 N/A N/A CPW F T8000437 BH38X16 WR38X88
CT-275/274-xxx PF274 N/A OR 386 ADC T234 N/A N/A KITCT274 T12000437 BH 38450 W R38X16
VS-275/274-xxx PF274 N/A OR386 N/A N/A N/A N/A T12000437 W N38X16 WR38X16
VL-275/274-xxx PF274 N/A OR 386 N/A N/A N/A N/A T12000437 WN38X16 WR38X16

Clips/ Wingnuts/

Bolts

Model No.

Top Plate

Model No.

Model No.

Bol

Washer(s)
Model No.

*Note: Spare parts are for standard products. See page 4 for replacement element.

Solberg International, Ltd., 1151 Ardmore Avenue, Itasca IL 60143

Ph: 630/616-4900 Fax: [phone] Email: [e-mail] Web: www.solbergmfg.com

Page 11

Vacuum Inlet Filters (Metric) March, 2000

SOLBERG