AIR FILTERING PRODUCTS

DUST CONTROL & PRODUCT RECLAIM

• MATERIAL PROCESSING

• MOBILE EQUIPMENT

• MANUFACTURING PROCESSES

Metroplex Products, Inc.

2901 ST. LOUIS AVE.

FORT WORTH, TEXAS 76110
 Metroplex Products, Inc. manufactures innovative self-cleaning air filtering products for a growing

number of diverse industries. Our products provide for continuous removal of airborne contaminants

from work processes involving dry bulk solids material, industrial facilities and mobile equipment.

 Since 1977, effective mechanical separation and highly efficient pleated filter cleaning by MPI has

provided exciting solutions to solids-gas separation and nuisance dust control problems. Our

products have been identified consistently with the highest industry standards of performance and

quality.

Advanced Technology -- Products

 The company's technology base is founded in solids-gas flow and separation. Continued research

expands this base for developing products to meet the needs of our customers. We are committed

to providing the best of the technology for air quality maintenance.

 Products are designed to provide solids-gas preseparation for reduced filter particle loading.

Efficient final filtering cleans process gas flow streams to levels that meet or exceed environmental

requirements.

Our Products Manufactured Under Patents and Patents Pending - U.S. and Foreign

Metroplex Products, Inc. 2901 ST. LOUIS AVE. FORT WORTH, TEXAS 76110 817/923-8241

Many Applications. Improved filter cleaning

methods are adapted to numerous pleated

filter forms for high level air quality control.

Copyright ©1987

MOBILE

EQUIPMENT

MANUFACTURING

PROCESSES

MATERIAL

PROCESSING

AIR QUALITY MAINTENANCE
 Multi-Jet reverse pulse filter cleaning increases gas filtering rates, conserves gas flow energy and

broadens the potential of pleated media.

 High energy cleaning allows media gas filtering velocities twice that of conventional systems.

Efficient removal of filtered material reduces process gas stream flow drag and extends filter life.

Large eductor-flow tube bores provide low velocity process gas flow to conserve gas flow energy.

Multi-Jet Versatility

 Multi-Jet cleaning utilizes quick-release 45 to 65 psig gas through grouped multiple orifices to

produce diverging and overlapping high energy jetting. Orifice patterns conform to large or diverse

shapes of filter flow tubes.

 Pleated filters of oval, panel, or cylindrical form, segmented or otherwise, are easily adapted to the

patented Multi-Jet reverse filter cleaning system.

Multi-Jet Operation

 Controlled, quick-release of jetted and educted gas dynamically seals the tube bore opening by

means of a solid gas wall. Ahead of the seal, high energy has flow overpowers collected material to

reverse flush filter media. Multi-Jet filter cleaning is thus complete and predictable.

MP371 8/87

Best of Technology MULTI-JET CLEANING

"Because of technological progress and product improvements, all design and dimensional data shown in

this catalog is subject to change without notice. Technical information has been prepared from actual test

results under controlled environmental conditions and data is considered to be reliable, but no responsibility

can be assumed for its accuracy under varied field conditions."
Efficient Filter Cleaning-Assured Process Air-Flow

 Efficient Multi-Jet cleaning of material from the segmented bore filter assures free flow of process

air. Non-electric, pneumatic timed filter cleaning is by 45/65 psi air in multiple overlapping jets. This

results in low residual flow drag across the filter and reliable discharge of high quality filtered air.

Exclusive Filter Guard

 For positive pressure systems, the Filter Guard pressure relief vents air and solids to atmosphere

in case of system overfilling or abnormal surging. This desirable feature provides an extra margin

to process control and filter life.

Metroplex Products, Inc. 2901 ST. LOUIS AVE. FORT WORTH, TEXAS 76110 817/923-8241

PATENTS AND PATENTS PENDING

Best of Technology CYCLONE FILTER

MODEL CF

Proven Design

 The flange-mount Cyclone-Filter is a member of the

proven M-PLEX Mono-Filter Series of Self-Cleaning

Cartridge Filter Systems. The Cyclone-Filter includes

a single, self-cleaning cartridge filter incorporated in a

cyclonic separator to provide compact, central filtered

venting for dry bulk material processing.

Swing-Away Top Housing - Easy to Maintain

 Swing-away of the top housing provides convenient

access for servicing the cartridge filter. The filter is

vertically lifted and may be bagged during removal

from the lower housing. This feature permits

impressive maintenance time savings when compared

to conventional systems.

Copyright ©1988
CYCLONE FILTER

MODEL OVERALL HEIGHT NOMINAL DIAMETER MAXIMUM AIR FLOW APPROX. SHIP WT.

CF-200 71" 26" 1,000 cfm 750 lb.

CF-400 90" 35 1⁄4" 2,000 cfm 1,100 lb.

CF-600 118" 45" 3,000 cfm 1,500 lb.

CF-800 129" 50 1⁄2" 4,000 cfm 1,800 lb.

CF-1000 138" 55 1⁄2" 5,000 cfm 2,200 lb.

CF-1200 147" 60 1⁄2" 6,000 cfm 2,500 lb.

CF-1400 154" 64 1⁄2" 7,000 cfm 2,700 lb.

CF-1600 161" 68 1⁄2" 8,000 cfm 2,900 lb.

CF-1800 168" 72 1⁄2" 9,000 cfm 3,100 lb.

CF-2000 173" 75 1⁄2" 10,000 cfm 3,400 lb.

CONSULT YOUR SALES REPRESENTATIVE - DIMENSIONS AND SPECIFICATIONS ARE SUBJECT TO CHANGE

WITHOUT NOTICE. APPROXIMATE SHIPPING WEIGHT IS LESS CRATE

Cleaning Air

Exhaust Valve

Filter

Retainer Bolt

Regulator/Gage

Filtered Air Outlet

Pneumatic Cleaning

Timer

Filter Flushing

Air Manifold

Segmented Filter Mount

Inlet

Filter Shroud

Cartridge Filter

Filter Support

Access Hatch

Multi-Jet

Head

Spring

Loaded Bolts

Swing-Top

Housing

Lift Swivel

Housing

Lift Handle

Lift Swivel

Mechanism

Lower Housing

Mounting Flange

MP 373 2/88
Efficient Filter Cleaning-Assured Process Air-Flow

 Efficient Multi-Jet cleaning of material from the segmented bore filter assures free flow of process

air. Non-electric, pneumatic timed filter cleaning is by 45/65 psi air in multiple overlapping jets. This

results in low residual flow drag across the filter and reliable discharge of high quality filtered air.

Exclusive Filter Guard

 For positive pressure systems, the Filter Guard pressure relief vents air and solids to atmosphere

in case of system overfilling or abnormal surging. This desirable feature provides an extra margin

to process control and filter life.

Metroplex Products, Inc. 2901 ST. LOUIS AVE. FORT WORTH, TEXAS 76110 817/923-8241

PATENTS AND PATENTS PENDING

Best of Technology CYCLONE FILTER

MODEL CR

Proven Design

 The ring-mount Cyclone-Filter is a member of the

proven M-PLEX Mono-Filter Series of Self-Cleaning

Cartridge Filter Systems. The Cyclone-Filter includes

a single, self-cleaning cartridge filter incorporated in a

cyclonic separator to provide compact, central filtered

venting for dry bulk material processing.

Copyright ©1988

Swing-Away Top Housing - Easy to Maintain

 Swing-away of the top housing provides convenient

access for servicing the cartridge filter. The filter is

vertically lifted and may be bagged during removal

from the lower housing. This feature permits

impressive maintenance time savings when compared

to conventional systems.
CYCLONE FILTER

MODEL OVERALL HEIGHT NOMINAL DIAMETER MAXIMUM AIR FLOW APPROX. SHIP WT.

CR-200 54" 26" 800 cfm 580 lb.

CR-400 56" 35 1⁄4" 1,600 cfm 850 lb.

CR-600 56" 45" 2,400 cfm 1,160 lb.

CR-800 56" 50 1⁄2" 3,200 cfm 1,390 lb.

CR-1000 62" 55 1⁄2" 4,000 cfm 1,700 lb.

CR-1200 62" 60 1⁄2" 4,800 cfm 1,930 lb.

CR-1400 62" 64 1⁄2" 5,600 cfm 2,090 lb.

CR-1600 62" 68 1⁄2" 6,400 cfm 2,240 lb.

CR-1800 64" 72 1⁄2" 7,200 cfm 2,400 lb.

CR-2000 64" 75 1⁄2" 8,000 cfm 2,630 lb.

CONSULT YOUR SALES REPRESENTATIVE - DIMENSIONS AND SPECIFICATIONS ARE SUBJECT TO CHANGE

WITHOUT NOTICE. APPROXIMATE SHIPPING WEIGHT IS LESS CRATE

Access Hatch

Cleaning Air

Exhaust Valve

Filter

Retainer Bolt

Regulator/Gage

Filtered Air Outlet

Pneumatic Cleaning

Timer

Filter Flushing

Air Manifold

Multi-Jet

Head

Spring

Loaded Bolts

Swing-Top

Housing

Lift Swivel

Housing

Segmented Filter Mount

Inlet

Filter Shroud

Cartridge Filter

Filter Support

Lift Handle

Lift Swivel

Mechanism

Lower Housing

Mounting Ring

MP 374 2/88
METROPLEX PRODUCTS, INC.

2901 ST. LOUIS AVENUE

FORT WORTH, TEXAS 76110

MANUAL MP-361

M-PLEX SELF-CLEANING CYCLONE-FILTER SYSTEM

FOR

CENTRAL FILTERED VENTING OF DRY BULK

MATERIAL PNEUMATIC PROCESSING OPERATIONS

NOTICE: Products are manufactured by Metroplex Products, Inc. under United States

and Foreign Patents and Patents Pending.

Copyright - 1988

Metroplex Products, Inc.
RV-9/88

M-PLEX SELF-CLEANING

CYCLONE FILTER SYSTEM

CONTENTS

I. INTRODUCTION

II. CYCLONE-FILTER DESCRIPTION

III. MATERIAL DISCHARGE – SCAVENGE MATERIAL RECLAIM TANK

IV. ENERGY SUPPLY REQUIREMENTS

V. INSTALLATION PROCEDURES

VI. START-UP PROCEDURES

VII. OPERATING PROCEDURES

VIII. PREVENTITIVE MAINTENANCE PROCEDURES

IX. MAINTENANCE AND TROUBLE SHOOTING
MP-361-1

RV-9/88

I. INTRODUCTION

M-PLEX Self-Cleaning Cyclone-Filter Systems provide reliable and constant filtered

venting of pneumatic transfer and blending dry bulk material processing operations.

The cyclone-filter is to be mounted onto a scavenge material reclaim tank in either a

flange or ring-mount configuration. Flange-mounting is utilized whenever tank discharge is

by positive pressure means. Valving between the cyclone-filter flange and the tank is

required to isolate the cyclone-filter from the tank during the pressure/discharge cycle.

Ring-mounting may be utilized whenever the tank discharge is by vacuum, gravity, or

mechanical means. Under these conditions, isolation of the cyclone-filter from the tank for

material discharge may not be required.

Each material processing vent line should be manifolded into a plant central vent

line. The plant central vent line, in turn, is vented directly into the cyclone-filter inlet. When

the cyclone-filter is ring-mounted, secondary or remote processes may be vented directly

into the reclaim tank. In either case, the cyclone-filter provides simultaneous venting of

multiple material processing operations.
MP-3612-2

RV-9/88

II. CYCLONE-FILTER DESCRIPTION

The cyclone-filter utilizes centrifugal force, gravity, and a self-cleaning cartridge filter

to remove scavenge material from the vented air stream before discharging filtered air to

atmosphere.

The cyclone inlet induces cyclonic flow to the vented air stream as it enters the

cyclone-filter housing. Dust "heavies" are thrown by centrifugal force along the inside wall

or the housing. Losing velocity, they spiral downward by gravity through the cyclone-filter

discharge and settle in the scavenge material reclaim tank below. Dust "fines" meanwhile,

remain in the vented air stream. The fines are then filtered from the vented air stream by

the self-cleaning cartridge filter. Thus filtered, the vented air stream is discharged to

atmosphere.

For filter cleaning, at 4/6 second intervals a jet of compressed air is automatically

fired from the filter cleaning system into the segmented bore cartridge filter. This jet of

cleaning air, from a quick-opening exhaust valve, is in reverse direction to the vented air

stream flow. Its effect is to dislodge fines from the surface of the filter. Once dislodged,

fines fall freely downward by gravity to settle with the "heavies" in the reclaim tank below.
MP-361-3

RV-9/88

III. MATERIAL DISCHARGE - SCAVENGE MATERIAL RECLAIM TANK

Material can be discharged from the scavenge material reclaim tank by positive

pressure, vacuum, gravity or mechanical means. For positive pressure discharge, the

cyclone-filter must be isolated from the tank during the pressure/discharge cycle. Isolation

can be achieved by installing a butterfly valve or similar device between the cyclone-filter's

flange and the tank.

For vacuum, gravity, or mechanical discharge, isolation may not be necessary. If

isolation is not required, ring mounting of the cyclone-filter to the tank may be desirable.

The scavenge material reclaim tank capacity must be selected relative to the plant

operating time cycle versus the tank discharge time cycle. For example, if the tank

discharge cycle is to be at eight hour intervals, select a tank capacity of 1.5 times the

projected reclaim material volume expected over that time cycle interval. IMPORTANT:

Do not undersize this tank - tank overfill will likely result in material back-up into the

cyclone-filter, plugging the filter and venting the pressure relief to atmosphere.
FEATURES

1. Single cartridge filter - 1,000 to 10,000 cfm.

2. High efficiency cyclonic preseparation reduces

solids to air loading at filter - Extends filter life,

lowers filter cleaning energy requirements.

3. Final filtration utilizes self-cleaning cartridge

filter element. No visible discharge emissions.

4. Swing-away top housing provides convenient

access for servicing filter.

5. Filter Guard pressure relief vents air and

solids to atmosphere in case of system overfill

or abnormal surging. Consult MPI for cracking

pressure limits.

6. Standard finish - Prime coat.

7. Fan and motor drive, optional. Consult MPI.

8. Proper operation requires continuous material

discharge from Cyclone Filter. Do not retain

material in Cyclone Filter housing or cone.

9. Safe installation requires M-PLEX Filter

Systems to be securely anchored. Allowances

in the anchor base, mounting structure, and all

support members should be made for material

and wind loadings, total system operating

weight, and other induced stresses and

loadings. WARNING: When rigging M-PLEX

Filter Systems, use clevises, not hooks - Use

all lifting lugs.

10. Securely attach all components and seal

against leakage.

11. This product in any form is not for filtering

explosive or hazardous solids-gases.

12. Refer to MPLEX Manual MP-361 for complete

M-PLEX Filter System Guidelines, Limitations,

and Safety Precautions.

Metroplex Products, Inc. 2901 ST. LOUIS AVE. FORT WORTH, TEXAS 76110 817/923-8241

PATENTS AND PATENTS PENDING

Best of Technology CYCLONE FILTER

MODEL CF

Copyright ©1988 MP 377 6/88

65 PSI Filter Flushing

Air Supply Required M-PLEX Cyclone

Filter-Flange Mount Filtered Air

Outlet

Cyclone Inlet

Vibra-Sorber

(By Customer)

Valving

(By Customer)

Plant Central

Vent Line - Not

For Bulk

Material

Transfer

Filtered Material Reclaim And

Pressure Discharge Tank - Do

Not Fill From Other Sources
FEATURES

1. Single cartridge filter - 800 to 8,000 cfm.

2. High efficiency cyclonic preseparation reduces

solids to air loading at filter - Extends filter life,

lowers filter cleaning energy requirements.

3. Final filtration utilizes self-cleaning cartridge

filter element. No visible discharge emissions.

4. Swing-away top housing provides convenient

access for servicing filter.

5. Filter guard pressure relief vents air and solids

to atmosphere in case of system overfill or

abnormal surging. Consult MPI for cracking

pressure limits.

6. Standard finish - Prime coat.

7. Fan and motor drive, optional. Consult MPI.

8. Safe installation requires M-PLEX Filter

systems to be securely anchored. Allowances

in the anchor base, mounting structure, and all

support members should be made for material

and wind loadings, total system operating

weight, and other induced stresses and

loadings. WARNING: When rigging M-PLEX

Filter Systems, use clevises, not hooks - Use

all lifting lugs.

9. Securely attach all components and seal

against leakage.

10. This product in any form is not for filtering

explosive or hazardous solids-gases.

11. Refer to M-PLEX Manual MP-361 for complete

M-PLEX Filter system Guidelines, Limitations,

and Safety Precautions.

Metroplex Products, Inc. 2901 ST. LOUIS AVE. FORT WORTH, TEXAS 76110 817/923-8241

PATENTS AND PATENTS PENDING

Best of Technology CYCLONE FILTER

MODEL CR

Copyright ©1988 MP 378 6/88

65 PSI Filter Flushing

Air Supply Required

M-PLEX Cyclone

Filter-Ring Mount Filtered Air

Outlet

Cyclone Inlet

Vibra-Sorber

(By Customer)

Plant Central

Vent Line - Not

For Bulk Material

Transfer

Filtered Material Reclaim

And Gravity Discharge Tank

Material Fill Line

(Optional)
MP-361-4

RV-9/88

IV. ENERGY SUPPLY REQUIREMENTS

1. Electrical Fan Drive

1.1 Fan motor, 230/460 volt, 3-phase. Horsepower will vary with the application.

1.2 Electrical lines connected to the motor must be flexible to allow for the

cyclone-filter's swing-away top housing.

1.3 The fan motor will run in either direction, depending upon how it is wired.

Wire the motor so that the fan blades rotate towards the fan outlet. Fan in

reversed rotation will be reduced by about 50%, which may drastically

effect system performance.

1.4 No electrical controls, starters, etc. are supplied by Metroplex Products, Inc.

2. Compressed Air Supply - Filter Cleaning System

2.1 65 psig constant pressure is required at the cyclone-filter's pressure regulator

gauge at all times. WARNING: The filter cleaning

system will not operate properly if the pressure regulator gauge indicates a

pressure drop of more than 4 psig at the time the system pulses. DO NOT

STARVE THE AIR SUPPLY. Read all instructions in this Section.

2.2 Cyclone-Filter 200 Series - Requires 65 psig constant pressure air from a

compressor of 5 - 7 1/2 hp delivering 18-20 scfm free air at the cyclone-filter

pressure regulator gauge.

2.3 Cyclone-filter 400 Series © Requires 65 psig constant pressure air from a

compressor of 71/2 to 10 hp delivering 28-36 scfm free air at the cyclone-filter

pressure regulator gauge.

2.4 Air supply line size must be at least 1/2" for runs up to 20 feet and at least

3/4" for longer runs. IMPORTANT: To help prevent air starvation, larger line

sizes may be required due to the number of bends or line length. In

some situations, an auxiliary air reservoir (5-10 ft3

 ) mounted in line and

located at the cyclone-filter may be necessary.

2.5 Air supply lines connected to the cyclone-filter must be flexible to allow for

swing-away of the top housing.

2.6 Air supply lines to the cyclone-filter should be plumbed into the compressed

air supply system piping upstream of all other valves,

controls, etc. also served by the compressed air system.
MP-361-5

RV-9/88

2.7 The compressed air supply must be kept clean and dry to prevent restricted

or blocked flow from contamination or freeze-up. A properly installed filter

and water trap are the minimum requirements. MPI MOO-409 alcohol

injection system or an equivalent de-icing system may be required for cold

weather operations.

2.8 The air compressor cut-in pressure setting must be higher than the cyclonefilter pressure regulator gauge setting (65 psig).
MP-361-6

RV-9/88

V. INSTALLATION PROCEDURES

The cyclone-filter should be mounted onto a scavenge material reclaim tank

dedicated solely to receiving discharged material vented from the material processing

operations.

When flange-mounted onto the reclaim tank, all vented through-put air should enter

the cyclone-filter through its inlet. This allows a constant, uninterrupted flow of material

downward from the cyclone-filter into the tank below. Do not feed material directly into the

reclaim tank, or through the cyclone-filter inlet. Do not vent secondary sources directly into

the reclaim tank - vent all sources through the cyclone-filter inlet. When ring-mounted

onto the reclaim tank, primary sources of vented process air should enter the cyclone-filter

at its inlet. Secondary or remote sources of vented process air may vent directly into the

reclaim tank mounted below. Do not feed material through the cyclone-filter inlet; however

material can be fed directly into the reclaim tank.

1. Flange to Flange Mount

1.1 Bottom Flange - Flange is Class 150 ANSI B16.5 12" diameter is

standard, other diameters are available. NOTE: Cyclones with 6" or 8"

diameter flanges will require sway bracing.

1.2 Cyclone Inlet Flange

1.2.1 Flange for vent line connection is Class 150 B16.5; diameter is

as required. NOTE: Inlet is also available as a schedule 40

pipe without the flange.

1.2.2 The connecting vent line should feed straight into the cyclone

inlet for a distance equal to at least five times the vent line

diameter. A vibra-sorber or equivalent is recommended to

prevent structural stress.

1.2.3 Refer to drawing MP-365 for inlet orientation.

1.3 See system drawings and drawing MP-365 for

additional specifications, dimensions, and approximate weights.

2. Bottom Ring Mount

2.1 Bottom Ring - See system drawings and drawing MP-365 for ring size

and orientation.

2.2 Cyclone inlet - See preceding section, 1.2.

2.3 See system drawings and drawing MP-365 for additional specifications,

dimensions, and approximate weights.
MP-361-7

RV-9/88

3. Scavenge Material Reclaim Tank Requirements

3.1 The tank, or any other structure to which the cyclone is mounted, must

be structurally sound to accommodate all structural loadings induced by

the environment, servicing, and operational modes. Cyclones with 6" or 8"

bottom flange mountings will require sway bracing.

3.2 Any valving operations in the material discharge outlet of the cyclone

must provide a constant or guaranteed scheduled discharge of material

from the cyclone. IMPORTANT: Overfilling of the tank

will cause material accumulation in the cyclone and result in filter plugging.

4. Service Platform and Railing Requirements

4.1 The service platform should be to safety code requirements. The service

platform must be adequate to allow for the swing-away top housing on the

M-Series Cyclones. Allowances must also be made for filter storage

during the filter replacement process.

4.2 Platform railing height should be checked against height

requirements for swing-away top housing to ensure proper clearance.

See system drawings.
MP-361-8

RV-9/88

VI. START-UP CHECK PROCEDURES

1. Before Venting Process Air Flow Stream

1.1 Turn on compressed air to start-up filter cleaning system.

1.1.1 Audible exhaust valve pulse should be at 4©6 second intervals.

1.1.2 Check cyclone-filter regulator pressure gauge setting for 65 psig

constant pressure. IMPORTANT: Check should be made while

other high pressure air components are in operation (valves,

etc.). WARNING: Regulator pressure gauge should not indicate

more than a 4 psig drop at time of pulse.

1.1.3 Check compressed air supply water trap and filter for proper

operation. Excessive water, oil, or other contaminants may

restrict or block air supply and cause erratic operation of the

filter cleaning system, likely reducing filter life.

1.1.4 Check compressor cut-in pressure setting. Cut-in setting must

be higher than the cyclone-filter pressure regulator gauge

setting (65 psig).

1.2 Fan operation - Check fan for proper rotation. Fan blades must turn

toward fan outlet. Fan in reversed rotation will still blow air, however

the air volume will be reduced by about 50%, which may drastically

effect system performance.

1.3 Check filter retention and Filter Guard pressure relief bolts for full

engagement. Filter Guard pressure relief bolts should tighten until they

are drawn solid against the bolt shoulder. Filter retention bolt should

be drawn wrench-tight.

1.4 Check filter to ensure that each filter divider "fin" (3) is inserted

between its mating fin guide attached to the filter cleaning system

directly above the filter.

1.5 Check the flap attached to the filtered air discharge on the top housing

for free movement.
MP361-9

RV-9/88

1.6 If the cyclone-filter is installed with a valve in the flange connecting the

cyclone-filter to the scavenge material tank, check valve for proper

orientation and operation. Valve should be normally open, and closed

only for positive pressure material discharge from the scavenge

material tank.

WARNING: Material retention in excess of 1 cu.ft. above the valve

and inside the cyclone-filter housing will overfill the cyclone-filter and

likely cause filter plugging.

2. Venting of First Process Air Flow Stream

2.1 It is recommended that the most agglomerating and least hygroscopic

material be processed for start-up operations. Materials such as sand

or cement provide one of the better initial particle imbedments in the

filter, enhancing filter life and performance.

2.2 Visible dust may be discharged from the cyclone-filter filtered air

discharge for the first 5-15 minutes of operation, while initial particle

imbedment is being established in the filter. IMPORTANT: In order to

avoid permanent build-up of hardened material on the filter, operate

the filter cleaning system for 30 minutes or more after final venting of

last material processing operations. This will ensure proper filter

cleaning and extend filter life.
MP-361-10

RV-9/88

VII. OPERATING PROCEDURES

1. Filter Cleaning System

1.1 Turn on compressed air for filter cleaning system start-up at least 15 minutes

before venting process air. NOTE: If equipped with fan, leave fan off until

process venting begins.

1.2 Allow the filter cleaning system to operate continuously during material

processing operations.

1.3 Continue to operate the filter cleaning system for at least 30 minutes after

final venting of last material processing operations. NOTE: If equipped with

fan, turn fan off after final venting. IMPORTANT: In operations involving

hygroscopic materials such as bentonite, continue to operate the filter

cleaning system with out fan for one hour after final venting of last material

processing operations.

1.4 To clean a blocked filter - Increase filter cleaning system air pressure at the

cyclone-filter pressure regulator gauge to 100/110 psig and operate for 1-4

hours. Afterwards, set air pressure back at 65 psig and resume normal

operations. If filter remains blocked, replace filter.

1.5 Filter cleaning on/off function should be independent of fan drive on/off

function (if so equipped).

2. Fan Drive System

NOTE: If cyclone-filter is not equipped with a fan drive, disregard this section.

2.1 Turn on and operate fan only when venting material processing operations.

Leave/turn off fan before material process venting begins, between material

processing operations, and after venting of final process. IMPORTANT: For

all material processing operations, filter cleaning system operation both

before and after process venting should be with the fan off. This is critically

important in humid, warm environments, and/or any material processing

operations involving hygroscopic materials (such as bentonite).
MP-361-11

RV-9/88

2.2 Fan drive on/off function should be independent of filter cleaning

system on/off function. Turn off fan when not required.

3. Filter guard Pressure Relief

The cyclone-filter top housing is sealed and spring loaded to the lower

housing. Excess pressure in the lower housing will raise the top housing and

allow vented air/material to by-pass the filter and discharge directly to

atmosphere. When excess pressure is relieved, the spring loaded top

housing lowers and reseats for continuation of normal operations. Under

normal operation, this relief should never come into use.

4. Material Discharge From The Cyclone-Filter

Continuous removal of filtered material from the cyclone-filter housing must

be ensured. If valving is used to isolate the cyclone-filter from the scavenge

material tank, make sure that the valve remains open or that a proper opening

sequence is maintained for the plant operating cycle. WARNING: Material

accumulation in the cyclone-filter housing in excess of 1 cu. ft. will overfill the

cyclone-filter and likely result in filter blockage.

5. Material Discharge From The Scavenge Material Reclaim Tank.

A scheduled rate of material discharge from the scavenge tank must be

guaranteed in order to avoid overfilling. IMPORTANT: Overfilling of the

scavenge material tank will cause material back-up into the cyclone-filter

housing and cause filter blockage.
MP-361-12

RV-9/88

VIII. PREVENTIVE MAINTENANCE PROCEDURES

Monthly check intervals are recommended for the Preventive Maintenance Procedures

outlined in this section.

1. Compressed Air System Checks

1.1 Compressor output at full pressure/volume potential.

1.2 Components supply pressure maintained at specified minimums during

maximum plant air usage.

1.3 Water and oil trap clean and functioning properly.

1.4 De-ice system reservoir level full (If equipped).

1.5 Air reservoir tank (located at cyclone-filter) at full pressure and drained

of fluids/contaminants ( If equipped).

1.6 Air supply piping free of leaks/blockage.

2. Cyclone-Filter Checks

2.1 Filter Cleaning System

2.1.1 Exhaust valve pulse rate should be at 4-6 second intervals.

2.1.2 Check for exhaust valve pulse rotation. Proper rotations should

be 1-2-1-3.

CAUTION: Avoid Air Blast From Exhaust Valves - Wear Eye,

Ear, Hand Protection.

2.1.3 Check for Clear, audible sound of exhaust valve pulse. If sound

is a high-pitched, broken, "barking" noise, problem likely is with

valve diaphragm or timer. See Maintenance Trouble Shooting,

Section IX.

2.1.4 Cyclone-filter pressure regulator setting should be at 65 psig,

constant pressure. A pressure drop of more than 4 psig at the

time of exhaust valve pulse will cause erratic filter cleaning

system operations.

3

1

2
MP-361-13

RV-9/88

2.1.5 Drain cyclone-filter pressure regulator bowl. Remove bowl

and check regulator filter. IMPORTANT: Excess liquids or

contaminants in the regulator bowl/filter will restrict flow through

the regulator and impair filter cleaning system performance.

2.2 Top Housing

2.2.1 Check for cleanliness. If necessary, clean by blowing inside

with compressed air. CAUTION: Avoid air blast – Turn off filter

cleaning system. Wear eye, ear, and hand protection. NOTE:

If material is accumulated in the upper housing, dust will be

discharged from the filtered air outlet.

2.2.2 Check filtered air discharge flap for free movement.

2.2.3 Check filter retaining and pressure relief valve retaining bolts for

tightness. Relief valve retaining bolts should be drawn tight

against the bolt shoulder. Draw filter retaining bolt wrench-tight.

IMPORTANT: All retaining bolts and connectors in this section

are threaded. Material collected on male threads and imbedded

into female threads will cause threads to seize. Accordingly, the

retaining bolts will appear to be tight when in fact they are not.

Under these conditions, filter seal leakage will occur and the

pressure relief will vent at low pressures. The result will be

material discharge to the atmosphere. Clean male threads with

a wire brush, use a thread tap to clean female threads.

2.3 Fan Drive - With fan off, check fan impeller for material accumulation.

WARNING: Material accumulation on the fan impeller can cause fan

imbalance; fan impeller/housing destruction can occur.

2.4 If equipped with valving in flange isolating cyclone-filter from scavenge

material tank, check valve for proper orientation and operation.
MP-361-14

RV-9/88

IX. MAINTENANCE AND TROUBLE SHOOTING PROCEDURES

1. Maintenance

1.1 Cartridge Filter - Replace with MPI replacement filter. Check endcap

seals before installation and clean mating surfaces on

cyclone-filter housing and filter guide. Tighten wrench-tight for full seal

compression. IMPORTANT: Without full seal compression, dust

leakage will occur across seals. Use MPI part FO200-100 for CycloneFilter 200 Series, FO400-100 for Cyclone-Filter 400 Series.

1.2 Exhaust Valve Diaphragm - At installation, properly orient diaphragm to

valve seat and pilot orifice pin. Evenly tighten valve cap screws.

IMPORTANT: Thoroughly clean and avoid contamination. Use MPI

part SKMOO-193-1 for Cyclone-Filter 200 Series, use SKMOO-241-1

for Cyclone-Filter 400 Series. Instructions and illustration drawings

included with each Kit.

1.3 Timer Seals - At installation, clean components, replace and lubricate

seals before assembly. Avoid contamination. Use MPI part SKMOO342 on all Cyclone-Filter Systems. Instructions, illustration drawings,

and lubricant included with each kit.

1.4 Regulator Kit - Replace when necessary with MPI part SKMOO-794-

001.

1.5 Filter Guard Pressure Relief - The Cyclone-Filter top housing is sealed

and spring loaded to the lower housing. Excess pressure in the lower

housing will raise the top housing and allow vented air/material to bypass the filter and discharge to atmosphere. When excess pressure is

relieved, the spring loaded top housing lowers and re-seats for

continuation of normal operations. Under normal operation, this relief

should never come into use. Relief valve operation is indicated by

air/material by-pass from between the top and lower housings.

Improper attachment of the top to lower housing will result in leakage

across the relief seals. CAUTION: All pressure relief retaining bolts

use threaded connections.
MP-361-15

RV-9/88

Material collected on the male threads and imbedded into the female

threads will cause thread seizure. Accordingly, the retaining bolts will

seem to be tight, when in fact they are not. Under these conditions,

leakage will occur, as the relief valve will vent at low pressures.

Material will be discharged to atmosphere. Clean male threads with a

wire brush, female threads with a threaded tap. Clean seals and

mating surfaces if necessary.

2. Trouble Shooting

Problem Possible Cause Corrective Actions

Filter Cleaning System will

not operate at all or stops at

random

1. Pressure regulator set

too low

1. set @ 65 psig

2. Compressor cut-in

pressure too low

2. Set cut-in pressure

higher than Cyclone-Filter

Pressure Regulator setting

3. Compressor intake filter

blocked

3. Clean, replace if

necessary

4. Compressor tank and/or

in-line reservoir holding

moisture, reducing air

volume

4. Drain

5. Air line water trap/filter

contaminated

5. Clean, replace filter

6. Cyclone-Filter air supply

starved by plant usage of

other air components

6. Check components for

leakage-fix leakage. Replumb Cyclone-Filter air

supply line up stream of

other components for

priority flow.
MP-361-16

RV-9/88

Problem Possible Causes Corrective Actions

7. Air supply line on-off

valve malfunctioning

7. Repair, replace

8. Cyclone-Filter pressure

regulator bowl full/filter

blocked

8. Drain, clean bowl, filter.

Replace filter

9. Timer seals deteriorated 9. Replace timer seals

10. Exhaust valve

diaphragm blocked open,

ruptured

10. Clean, replace

diaphragm if necessary

11. Filter Cleaning System

air pilot valve

leaking/blocked

11. Replace or clean an reset as necessary

12. Timer poppet valve

blocked open

12. Remove poppet

endcap, manually actuate

poppet, clean for normal

operations

13. Filter Cleaning system

air line leaking/broken

13. Replace

14. Filter Cleaning System

manifold retaining excess

moisture

14. Drain
MP-361-17

RV-9/88

Problem Possible Causes Corrective Actions

Filter cleaning system

cycles and repeatedly stops

on same exhaust valve

1. Exhaust valve diaphragm

blocked/ruptured

1. Clean, replace if

necessary

2. Timer poppet sticking 2. Remove poppet endcap,

clean, un-stick poppet

3. Exhaust valve pilot line

kinked/leaking

3. Replace

Dust Discharge from

pressure relief vent

1. Fugitive material tank too

full or overfilled

1. Empty tank

2. Pressure relief retaining

bolts not fully engaged

2. Remove bolts, swing top

housing, clean male

threads, female threads,

reassemble and tighten

until bolt shoulder’s bottom

out

3. Filter blocked 3. Clean down or replace

filter

4. Valve in Cyclone-Filter

discharge to fugitive

material tank partially/fully

closed

4. Repair valve

5. Material accumulation on

seal surfaces and lift handle

5. Swing top housing clean

all mating surfaces, and

retaining bolts, lubricate lift

handle
MP-361-18

RV-9/88

Problem Possible Causes Corrective Actions

Dust discharge at CycloneFilter’s filtered air discharge1. Filter ruptured 1. Replace filter

2. Filter loose, dust leaking

past endcap seals

2. Tighten filter if

necessary, remove filter,

clean mating surfaces (4),

and reinstall. Replace seals

and/or filter if required

3. Filter retaining bolt not

fully engaged

3. Remove bolt, clean male

and female threads, tighten

wrench-tight

4. Filter divider “fins” (3) not

aligned to manifold

4. Loosen filter, align fins,

tighten

5. Residual material in top

housing periodically breaks

loose

5. Clean top housing
 AIR FILTRATION SYSTEM

M-200, M-400 SERIES - FILTER REPLACEMENT

Metroplex Products, Inc. 2901 ST. LOUIS AVE. FORT WORTH, TEXAS 76110 817/923-8241

1. Turn off air supply.

2. Open top housing hatch

3. Disengage: (a) 4 each, spring loaded

bolts. (b) filter retainer bolt - in center. Leave

bolts in place.

A 1. Pull down lift handle to raise top

housing.

2. Swing top housing clear of filer. Caution!

Air Supply Line.

B

1. Remove used filter.

2. Clean dust from all housing mating

surfaces.

3. Use 3⁄4-10 thread tap, clean dust from

threads (a) in top of lower housing - 4

places. (b) center filter mount - 1 place.

4. Lubricate threads.

C 1. Insert new filter.

2. Align top housing over outside guide pin

and lower into place.

3. Engage: (a) 4 each, spring loaded bolts,

until shoulder is tight against bottom

housing. (b) filter retainer bolt until firmly

tight using 10" wrench.

D

CAUTION! CLEAN SEALING SURFACES & TIGHTEN ALL RETENTION

BOLTS TO PREVENT DUST LEAKAGE.

Patents and Patents Pending

Copyright 1985