# AIR FILTERING PRODUCTS

DUST CONTROL & PRODUCT RECLAIM

• MATERIAL PROCESSING



## • MOBILE EQUIPMENT



## • MANUFACTURIN G PROCESSES

Metroplex Products, Inc.
2901 ST. LOUIS AVE. FORT WORTH, TEXAS 76110Metroplex 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 separat ion 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 solid s-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 MAINTENANCEMulti-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 educt ed 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 impr ovements, all design and dimensional data shown in this catalog is subject to change without notice. Tec hnical 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 Guar d 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 s y stems.

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 Retaine r 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 2/88Efficient 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 filt er and reliable discharge of high quality filtered air.

Exclusive Filter Guard
For positive pressure systems, the Filter Guar d 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 s y stems.

### 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 Retaine r 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 2/88METROPLEX PRODUCTS, INC. 2901 ST. LOUIS AVENUE FORT WORTH, TEXAS 76110

MANUAL MP-361

M-PLEX SELF-CLEANING CY CLONE-FILTER SYSTEM FOR CENTRAL FILTERED VENTING OF DRY BULK MATERIAL PNEUMATIC PROCESSING OPERATIONS

NOTICE: Products are manufactured by Metr oplex 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 SHOOTINGMP-361-1 RV-9/88

I. INTRODUCTION

M-PLEX Self-Cleaning Cyclone-Fi lter Systems provide relia ble and constant filtered venting of pneumatic transfer and blending dry bulk material processing operations.
The cyclone-filter is to be mounted onto a scav enge material reclaim tank in either a flange or ring-mount configuration. Flange-mount ing 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-f ilter from the tank during the pressure/discharge cycle. Ring-mounting may be utilized whenever the t ank discharge is by vacuum, gravity, or mechanical means. Under these conditions, isolat ion of the cyclone-filterfrom 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 proce sses may be vented directly into the reclaim tank. In either case, t he 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 t he 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 recl aim tank below. Dust "fines" meanwhile, remain in the vented air stream. The fines ar e then filtered from t he vented air stream by the self-cleaning cartridge filter. Thus filt ered, the vented air stream is discharged to atmosphere.
For filter cleaning, at 4/6 second interval s a jet of compressed air is automatically fired from the filter cleaning system into the segmented bore ca rtridge 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 surfac e 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 scav enge material reclaim tank by positive pressure, vacuum, gravity or mechanical m eans. For positive pressure discharge, the cyclone-filter must be isolated fr om the tank during the pressure/discharge cycle. Isolation can be achieved by installing a butterfly valv e or similar device bet ween the cyclone-filter's flange and the tank.
For vacuum, gravity, or mechanical dischar ge, isolation may not be necessary. If isolation is not required, ring mounting of the cyclone-filter tothe tank may be desirable.
The scavenge material reclaim tank capacity must be selected relative to the plant operating time cycle versus the tank dischar ge 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 wil l likely result in material back-up into the cyclone-filter, plugging the filt er 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 f ilter - 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 cl evises, 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 Su pp l y Re q uired M-PLEX Cyclone Filter-Flan g e Mount Filtered Air

Outlet
Cyclone Inlet

Vibra-Sorber ( B y Customer)

Valving ( B y Customer )

Plant Central Vent Line - Not For Bulk Material Transfe r Filtered Material Reclaim And Pressure Discharge Tank - Do

Not Fill From Other SourcesFEATURES
1. Single cartridge filter - 800 to 8,000 cfm. 2. High efficiency cyclonic preseparation reduces solids to air loading at f ilter - 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 cl evises, 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 Su pp l y Re q uired M-PLEX Cyclone Filter-Rin g Mount Filtered Air

Outlet
Cyclone Inlet

Vibra-Sorber ( B y Customer )

Plant Central Vent Line - Not For Bulk Material Transfer Filtered Material Reclaim And Gravity Discharge Tank

Material Fill Line ( O p tional )MP-361-4 RV-9/88

IV. ENERGY SUPPLY REQUIREMENTS

1. Electrical Fan Drive
1.1 Fan motor, 230/460 volt, 3-phase. Ho rsepower will vary with the application. 1.2 Electrical lines connected to the mo tor must be flexible to allow for the cyclone-filter's swin g-away top housing. 1.3 The fan motor will run in either di rection, 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 requir ed at the cyclone-filter's pressure regulator gauge at all times. WARNING : The filter cleaning system will not operate properlyif 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 atthe 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 atthe 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 ft 3) 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-filtershould 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 requi rements. 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 pressuresetting 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 ont o a scavenge material reclaim tank dedicated solely to receiving discharged mate rial 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 allowsa constant, uninterrupted flow of material downward from the cyclone-f ilter into the tank below. Do no t 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 th rough the cyclone-filter inlet. When ring-mounted onto the reclaim tank, primary sources of v ented 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 mate rial 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 shou ld 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, dim ensions, and approximate weights. 2. Bottom Ring Mount 2.1 Bottom Ring - See system drawi ngs and drawing MP-365 for ring size and orientation. 2.2 Cyclone inlet - See preceding section, 1.2. 2.3 See system drawings and drawin g MP-365 for additional specifications, dimensions, and appr oximate weights.MP-361-7 RV-9/88

3. Scavenge Material Reclaim Tank Requirements
3.1 The tank, or any other structur e 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 t he 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 r eplacement 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-filt er 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, o il, or other contaminants may restrict or block air supply and cause erratic operation of the filter cleaning system, likel y reducing filter life. 1.1.4 Check compressor cut-in pressu re setting. Cut-in setting must be higher than the cyclone-filterpressure 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 re lief bolts should tighten until they are drawn solid against the bolt shoulde r. 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 filt ered air discharge on the top housing for free movement.MP361-9 RV-9/88
1.6 If the cyclone-filter is installed wi th 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 ex cess of 1 cu.ft. above the valve and inside the cyclone-filterhousing 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 oper ations. Materials such as sand or cement provide one of the better initial particle imbedments in the filter, enhancing filterlife and performance. 2.2 Visible dust may be discharged fr om the cyclone-filt er filtered air discharge for the first 5-15 minutes ofoperation, while initial particle imbedment is being establis hed in the filter. IMPORTANT : In order to avoid permanent build-up of hardened ma terial 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 cleani ng 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 cl eaning system to operate continuously during material processing operations. 1.3 Continue to operate t he filter cleaning system for at least 30 minutes after final venting of last material proce ssing operations. NOTE: If equipped with fan, turn fan off afte r final venting. IMPORTANT : In operations involving hygroscopic materials such as bentoni te, continue to operate the filter cleaning system with out fan for one hour after final v enting of last material processing operations. 1.4 To clean a blocked filter - Increase f ilter cleaning system air pressure at the cyclone-filter pressure regulator gauge to 100/110 psig and operate for 1-4 hours. Afterwards, set air pressureback at 65 psig and resume normal operations. If filter remain s blocked, replace filter. 1.5 Filter cleaning on/off function s hould be independent offan drive on/off function (if so equipped).
2. Fan Drive System NOTE: If cyclone-filter is not equipped wit h a fan drive, disregard this section.
2.1 Turn on and operate fan only when vent ing material processing operations. Leave/turn off fan before material pr ocess venting begins, between material processing operations, and after venting offinal process. IMPORTANT: For all material processing operations, filter cleaning system operation both before and after process venting should be wi th 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 seal ed and spring loaded to the lower housing. Excess pressure in the lowe r housing will raise the top housing and allow vented air/material to by-pa ss the filter and discharge directly to atmosphere. When excess pressure is relieved, the spring loaded top housing lowers and reseats for conti nuation of normal operations. Under normal operation, this relief should never come into use.
4. Material Discharge From The Cyclone-Filter

Continuous removal of filtered materi al from the cyclone- filter housing must be ensured. If valving is used to isol ate the cyclone-filter from the scavenge material tank, make sure that the va lve 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 dischar ge 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 cycl one-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 ofexhaust 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 regul ator 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

2MP-361-13 RV-9/88

2.1.5 Drain cyclone-filter pressu re 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 filtercleaning 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 pressu re relief valve retaining bolts for tightness. Relief valve retaining bolts should be drawn tight against the bolt shoulder. Draw f ilter retaining bolt wrench-tight. IMPORTANT : All retaining bolts and connectors in this section are threaded. Material collect ed 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 atmos phere. Clean male threads with a wire brush, use a thread tap to clean female threads.
2.3 Fan Drive - With fan off, check f an impeller for material accumulation. WARNING : Material accumulation on the fan impeller can cause fan imbalance; fan impeller/hous ing destruction can occur.
2.4 If equipped with valving in flange is olating cyclone-filter from scavenge material tank, check valve fo r proper orientation and operation.MP-361-14 RV-9/88

IX. MAINTENANCE AND TROU BLE SHOOTING PROCEDURES

1. Maintenance
1.1 Cartridge Filter - Replace with MP I replacement filter. Check endcap seals before installation and clean mating surfaces on cyclone-filter housing and f ilter guide. Tighten wrench-tight for full seal compression . IMPORTANT: Without full seal compression, dustleakage 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 insta llation, 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-Filt er 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 cont amination. Use MPI part SKMOO342 on all Cyclone-Filter S ystems. 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 lowerhousing will raise the top housing and allow vented air/material to bypass the filter and discharge to atmo sphere. 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 theyare not. Under these conditions, leakage will occur, as the relief valve will vent at low pressures. Material will be discharged to atmos phere. 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 forleakage-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. DrainMP-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 handleMP-361-18 RV-9/88

Problem Possible Causes Corrective Actions
Dust discharge at CycloneFilter’s filtered air discharge 1. 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 ti g ht usin g 10" wrench. 

# D

CAUTION! CLEAN SEALING SURFACES & TIGHTEN ALL RETENTION BOLTS TO PREVENT DUST LEAKAGE. Patents and Patents Pending Copyright 1985