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Roots products are sold subject to the

current General Terms of Sale, GTS-5001 and

Warranty Policy WP-5020. Copies are

available upon request.

Contact your local Roots Office

or Roots Customer Service

Hot Line 1-877-363-ROOT(S) (7668)

or direct 832-590-2600.

Содержание ROOTS DPJ Series

Страница 1: ...r Contents GENERAL INFORMATION 1 12 Information Summary 1 Safety Precautions Operating Limitations 3 Operation 4 Installation 5 9 Lubrication 10 Inspection Maintenance 11 Troubleshooting 12 J Check shipment for damage If found file claim with carrier and notify Roots J Unpack shipment carefully and check contents against Packing List Notify Roots if a shortage appears J Store in a clean dry locati...

Страница 2: ...subject to the current General Terms of Sale GTS 5001 and Warranty Policy WP 5020 Copies are available upon request Contact your local Roots Office or Roots Customer Service Hot Line 1 877 363 ROOT S 7668 or direct 832 590 2600 ...

Страница 3: ...ese limits apply to all units of normal con struction when operated under standard atmospheric condi tions Be sure to arrange connections or taps for instruments such as thermometers and pressure or vacuum gauges at or near the inlet and discharge connections of the unit These along with a tachometer will enable periodic checks of oper ating conditions PRESSURE The pressure rise between inlet and ...

Страница 4: ...ovided and that thermometers be in both inlet and discharge lines Readings from these instruments will show whether pressure or temperature ratings of the blower are being exceeded During the final run check operating conditions frequently and observe the oil levels at reasonable intervals If excessive noise or local heating develops shut down immediately and determine the cause If either pressure...

Страница 5: ... Test them first for tightness and fractures by tapping with a hammer In lifting keep the direction of cable pull on these bolts as nearly vertical as possible If lifting lugs are not available lifting slings may be passed under the cylinder adjacent to the headplates Either method prevents strain on the extended drive shaft Packaged Units When the unit is furnished mounted on a baseplate with or ...

Страница 6: ...ation must be estab lished accordingly and is indicated by an arrow near the shaft Typical arrangement on vertical units has the drive shaft at the top with counterclockwise rotation and discharge to the left Horizontal units are typically arranged with the drive shaft at the left with counterclockwise rotation and discharge down See drawings on page 9 for other various unit arrangements and possi...

Страница 7: ...7 For your nearest Roots office contact information please consult the last page of this document Acceptable Blower Drive Arrangement Options ACCEPTABLE UNACCEPTABLE ...

Страница 8: ...usefulness has ended as the wire will eventually deteriorate and small pieces going into the unit may cause serious damage Pipe flanges or male threads must meet the unit connections accurately and squarely DO NOT attempt to correct misalign ment by springing or cramping the pipe In most cases this will distort the unit casing and cause impeller rubbing In severe cases it can prevent operation or ...

Страница 9: ...9 For your nearest Roots office contact information please consult the last page of this document Blower Orientation Conversion RAM WHISPAIR units ...

Страница 10: ...es table on this page Roots synthetic oil Roots P N 813 106 is specified Roots does NOT recommend automotive type lubricants as they are not formulated with the properties mentioned above The oil level should not fall below the middle of the site gauge when the blower is idle It may rise or fall on the gauge dur ing operation to an extent depending somewhat on oil tem perature and blower speed Pro...

Страница 11: ...ces Sudden bearing failure is usually more serious Since the shaft and impeller are no longer supported and properly located exten sive general damage to the blower casing and gears is likely to occur Oil seals should be considered expendable items to be replaced whenever drainage from the headplate vent cavity becomes excessive or when the blower is disassembled for any reason Some oil seal leaka...

Страница 12: ...questionable 16 Excessive belt tension Readjust for correct tension Vibration 17 Misalignment See Item 15 18 Impellers rubbing See Item 10 19 Worn bearings gears Check gear backlash and condition of bearings and replace as indicated 20 Unbalanced or rubbing Scale or process material may build up on casing and impeller impellers or inside impellers Remove build up to restore original clearances and...

Страница 13: ...purge gas pressure in the vent chamber should be maintained at about 1 psi over the discharge pres sure The plugged drain connections are provided to allow periodic draining of any fluid which might accumulate in the seal chamber This can be a combination of lubricating oils liq uids entrained in the process gas or condensables from the process gas Care must be used when opening the vent drain plu...

Страница 14: ...133 18 1241 16 539 409 4 5 4000 240 133 18 1241 16 539 412 4 5 4000 240 133 15 1034 16 539 418 4 5 4000 240 133 10 690 16 539 616 6 0 3000 230 128 15 1034 16 539 624 6 0 3000 230 128 10 690 16 539 Table 1a RAM G RAM GJ Blower Maximum Allowable Operating Conditions Frame Gear Speed Temp Rise Delta Pressure Inlet Vacuum Size Diameter Inch RPM F C PSI mbar INHG mbar ...

Страница 15: ... permanent cover and silencer locations may be exchanged if the installation requires The permanent cover must be removed both jet plenums inspected and cleared of foreign material then the perma nent cover and silencer installed in the desired locations before operating Full size jet and discharge silencers are desirable however the jet silencer may be reduced one nom inal size providing either t...

Страница 16: ...16 Figures 3b DVJ VACUUM SYSTEM SCHEMATIC For DVJ Applications ...

Страница 17: ...dures are for coating new uncoated repair parts spot repair of coating or renewal If setting clearances and timing are involved this should be done before the new parts are coated Subsequent cleaning and coating may involve at least partial disassembly for proper cleaning without damaging the coating of other original parts still coated and to apply coating properly Normally for new uncoated surfa...

Страница 18: ... hard to turn initially as a result Turn over by hand until the running is free Do not try to free up the blower by coupled or belted drive and do not try to spin the rotors with shop air Do not attempt to use any kind of solvent or cleaner to partially remove coating as this could ruin all of the coating If necessary coating can be scraped for such partial removal Complete Removal of Coating This...

Страница 19: ... for eign material before installing the return cooled air piping full port size piping must be used Inspect the cooler for foreign material before installation as dirt metal shavings paper and other materials could restrict air flow to the blower jets or damage close clearance rotating parts within the blower Operation NOTE be sure the pressure drop between the blower dis charge and the return ai...

Страница 20: ...e converted from water sealed operation to use as a dry vacuum blower all scale or dirt deposits must first be completely removed from all internal surfaces Operating Limitations To establish and maintain continued satisfactory perform ance a ROOTS VJ vacuum blower must be operated within certain approved limiting conditions The Manufacturer s warranty is contingent on such operation Maximum limit...

Страница 21: ...ect total water rate This adjustment is semi permanent and the two control valves should be locked by removing their wheels or by other suitable methods Valve C then serves as the master valve C Also during this period check the cylinder and head plates for hot spots indicating impeller rubs Continue to be alert to unusual noises and changes in vibration Check oil levels in the sight windows at bo...

Страница 22: ... for dirt removal the blower may be reconnected and a check run made to veri fy normal operation Before operating under power turn the drive shaft several revolutions manually to verify that impellers turn freely at all points with no scrapping or or bumping Also make sure that tape is removed from the drain vent holes near the bottom of each headplate Scale build up A basic principle of the ROOTS...

Страница 23: ...J Single Vacuum Blower scale is primarily organic Where the scale composition is primarily mineral or is unknown samples of the material should be checked and specific recommendations request ed from the scale removal suppliers Strong acid com pounds or other corrosion causing materials should be avoided because of the harm which will result to the internal surfaces and clearances of the blowers ...

Страница 24: ...24 NOTE Only if 2 stage exhauster Figure 3f Seal Water Control Piping Diagram Figure 3g Installation of Two Stage VJ 2 Vacuum Blower ...

Страница 25: ...ng 65467023 1 Headplate 2 2 Spray nozzle assembly 1 3 Gearbox 1 4 Gear Assembly 1 5 Drive End Cover 1 7 Gasket 2 8 Nameplate 1 9 Lubrication Label 2 10 Shim Set 1 11 Cylinder 1 12 Impeller Shaft Drive 1 13 Impeller Shaft Driven 1 14 Bearing Roller 4 16 Pin Dowel 4 17 Dri Lok Pin 2 19 Key 1 20 Drive Screw 2 21 Plug Vent 2 22 Drain Filler Plug 4 23 Capscrew 400 34 23 Capscrew 600 40 27 Seal Lip Head...

Страница 26: ...26 Assembly of RAM Series Air Gas Blowers ...

Страница 27: ...27 For your nearest Roots office contact information please consult the last page of this document Assembly of Series RCS V ...

Страница 28: ...877 363 ROOT S 7668 Direct Phone 832 590 2600 Connersville Indiana Operations U S Toll Free Phone 1 877 442 7910 Direct Phone 765 827 9285 United Kingdom Operations Phone 44 0 1484 422 222 USA Canada Sales Phone 773 444 3360 Houston Texas Factory Service Phone 713 896 4810 Mexico City Sales and Factory Service Phone 52 55 5889 5811 Dubai Sales and Factory Service Phone 971 4 8830831 Malaysia Sales...

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