gy´ro l fluiddrives - mc ilvaine company · class6 g´yrol®fluiddrives ...

GYROL FLUID DRIVES SAVE ENERGY

Gyrol Fluid Drives can help reduce your energy consumption by providinginfinitely variable speed control and light load starting. By using Gyrol FluidDrives on a fan it can be operated at the correct speed to achieve the desired airvolume rather than operating at maximum speed and throttling the fan by usingvanes or dampers. Similar power savings can be realized on centrifugal pumpsand compressors or any other variable torque application.

HOW GYROL FLUID DRIVES WORK

Gyrol Fluid Drives transmit power smoothly and without shock, using a vortexof hydraulic oil. Oil particles are rotationally accelerated in the impeller which isconnected to the motor. The rotational energy of the oil from the higher speed inputrotor is transferred to the output rotor as the oil circulates between them. There is nomechanical connection between the input and output shafts. By varying the amountof oil in the working circuit the Gyrol Fluid Drive provides infinitely variable speedcontrol. This can be done while the machine is in operation and can be set for manualor automatic speed control.

A circulating pump in the Gyrol Fluid Drive moves oil from the housing reservoirthrough a heat exchanger to remove excess, heat then returns it to the workingelements. Varying the quantity of oil in the working circuit through the use of ascoop tube varies the output speed.

All moving parts are either submerged in oil or pressure-lubricated. The sameoil transmits power, removes heat and lubricates. Gyrol Fluid Drives are simple,dependable and can transmit energy from the motor to the load at 98% efficiencyor better. www.howdenbuffalo.com

GYROL® FLUID DRIVESGyrol Fluid Drives are used to control speed and to absorb shockand torsional vibration. These extremely robust variable speedhydraulic drives provide a reliable, low maintenance, cost-effectivealternative to high-horsepower, medium-voltage variable frequencydrives. With over 12,000 units installed on more than 18 millionhorsepower in the US, Gyrol Fluid Drives have a proven track recordof performance and reliability. They are used by virtually everyindustry— driving fans, pumps, conveyors, ball mills andmany other types of equipment. Anywhere speed controlor controlled starting are essential, indoors or out,Howden Buffalo Gyrol Fluid Drives are the reliable choice.

BENEFITS OF THE GYROL FLUID DRIVE

• Provides infinitely variable speed control over a wide range,up to 5:1 on variable torque loads and 4:1 on constant torque loads

• Provides no load starting, making it possible to use the mosteconomical motor and starter

• Enables the use of simple, normal starting torque induction motors

• Eliminates power waste. By matching speed to load you can operateyour equipment at the proper speed for proper flow at any time

• Can transmit power at over 98% efficiency

• Naturally limits torque to protect equipment

• Controls acceleration and deceleration, saving wear and tear

• Isolates the load from the driver

• Reduces maintenance, wear and noise

• Absorbs shock and torsional vibration

• Suitable for variable or constant torque applications

• Can be used indoors or out, even in severe environments

• Lower cost of installation and operation than other typesof variable speed controllers

• Does not require periodic software upgrades

• Small footprint

GYROL FLUID DRIVE APPLICATIONS

• Fans and Blowers

• Pumps

• Conveyors

• Crushers and Ball Mills

• Mixers

• Extruders

• Centrifuges

GYROL® FLUID DRIVES

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SIZES 126 TO 270UP TO 1,800 RPM TO 1,500 HP

(1,200 kW)• Dual horizontal scoop tube, betweeninner and outer casing, gives steplessspeed control for either directionof rotation.

• Four oil lubricated, anti-friction bearingsprovide support for the rotatingassembly.

• End bell housing protects all workingparts.

• Oil returns from heat exchanger totransmit power, remove heat andlubricate all working parts.

• Impeller and runner are precision castfrom high-quality aluminum for long life.

• Oil exits to external heat exchangerfor cooling.

• Oil supply pump is externally-mountedand driven from the input shaft. Itsupplies constant volume of oil forthe working circuit regardless ofoutput speed or direction of rotation.

• Rugged steel casing encloses rotatingparts and serves as the oil circuitreservoir.

SIZES 315 TO 366UP TO 1,200 RPM TO 2,250 HP

(1,650 kW)•Manual control lever adapts easily toautomatic control.

• Steel output shaft is supported byanti-friction bearings designed to handleexternal thrust.

• Impeller and runner are cast aluminumfor long life.

• Fabricated steel housing enclosesworking parts and holds oil. Ruggedsteel casing encloses cast aluminum im-peller and runner.

• Chain-driven reversible pump suppliesoil for the working circuit, for coolingand for lubrication, regardless ofoutput speed.

CLASS 2Class 2 Gyrol FluidDrives are availablein various standardarrangements, withhorsepower ratingsfrom 2 to 2,250. Thesedrives work hard everyday handling fans,conveyors, pumpsand blowers in manyindustrial applications.

Gyrol® Fluid Drives

Note: We offer shell-and-tube orplate-and-frame exchangers as standardequipment for oil cooling duty. If youneed to cool with air, we can offer air/oilheat exchangers.


12 SIZES AND VARIATIONS(231-580) 100 TO 3,500HORSEPOWER SPEEDS

TO 1,800 RPM• Static and dynamic-balanced,high-quality aluminumrotating assemblytransmits power.

• Herringbone-gear pump (hidden)supplies oil flow for the workingcircuit and lubrication. Certainduties require use of an externalmotor driven oil pump in place ofthe standard pump.

• Four Babbitt-lined, bronze-backedprecision sleeve bearings split foreasier installation.

• One double Kingsbury thrust bearingbetween impeller and runner absorbsinternal thrust.

• Housing holds oil, encloses andprotects rotating assembly inrugged environments.

• Push-pull scoop tube control mountson either side of unit, adapts easilyto automatic control.

• Single-tipped scoop tube gives steplessspeed control for rotation specified.

• Steel shafts with ground bearingsurface give long operating life.

• Fabricated steel housinghorizontally split for easy inspectionand maintenance.

• Labyrinth seals keep contaminantsout of unit.

• All bearings are force-lubricatedfor long life.

CLASS 4Gyrol® Fluid Drives

Class 4 GyrolFluid Drives are

frequently used indriving centrifugal andreciprocating pumps,fans, extruders andmany other general

industrial applications.



IMPELLER OIL RUNNER


16 SIZES AND VARIATIONS(231 TO 580)

500 TO 14,000 HORSEPOWERSPEEDS TO 1,800 RPM

• Herringbone-gear pump (hidden)supplies oil flow for the working circuitand lubrication (sizes up to 427).Certain duties require use of anexternal motor driven oil pump inplace of the standard pump (sizes427H and larger).

• Forged steel shafts have long life.

• Fabricated steel housing horizontallysplit for easy inspection andmaintenance.

• Precision-fit bearing surfaces andbolting flanges give trouble-freeoperation.

• Static and dynamic-balanced rotatingassembly, impeller and runner are castaluminum, welded steel or machinedsteel forgings as needed for thespecific application.

• Push-pull scoop tube control mountson either side of unit, adapts easily toautomatic control.

• Four Babbitt-lined, bronze-backedprecision sleeve bearings are designedfor long life.

• Rugged steel casings enclose theimpeller and runner.

• A high tensile, single-tipped scooptube provides stepless speed controlfor rotation specified.


• Two double Kingsbury thrust bearingsin each pillow block absorb internal andexternal thrust.



Class 5 GyrolFluid Drives aregenerally used inHeavy-duty pumpand fan applications.They offer reliable,adjustable speed,which is criticallyimportant for systemsof this magnitude.




Note: We offer shell-and-tube orplate-and-frame exchangers as standardequipment for oil cooling duty. If you needto cool with air, we can offer air/oil heatexchangers. On sizes 171 through 212A,shell-and-tube heat exchangers used for oilcooling are normally mounted in the fluiddrive houseing. Other sizes have side, orremote, mounted oil coolers, depending onspecific duty requirements.

11 SIZES AND VARIATIONS(126-292 DUAL)

200 TO 40,000 HORSEPOWERSPEEDS TO 3,600 RPM

• Herringbone-gear pump (hidden)supplies oil flow for the working circuitand for lubrication, (sizes 126 to 231).Certain duties require use of anexternal motor driven oil pump in placeof the standard pump.

• External sub-base mounted pump(sizes 250 and larger) supplies workingcircuit oil, lubrication and additional oilfor driven equipment, if needed.

• Forged steel shafts have long life.

• Split housing assembly permitsremoval of upper housing forinspection and maintenance.

• Precision-fit bearing surfaces andbolting flanges give trouble-freeoperation.

• A high tensile, single-tipped scoop tubeprovides stepless speed control forrotation specified.

• Static and dynamic-balancedimpeller and runner are high-quality,heat-treated cast aluminum(sizes 126 and 146) or machinedfrom solid high-tensile steel forgings(sizes 171 and larger).

• Push-pull scoop tube control mountson either side of unit, adapts easily toautomatic control. (Rotary action onsizes 171 and 198)

• Four Babbitt-lined, bronzed-backedprecision sleeve bearings are designedfor long life.

• Rugged steel casings enclose theimpeller and runner.


• Two double Kingsbury thrust bearingsin each pillow block absorb internaland external thrust.

Class 6 GyrolFluid Drives weredesigned primarily

for adjustable speedcontrol for feed pump

applications. Theyhave proven reliable

in utilities and pipelinesin the most ruggedduty for over half

a century.


RE CLASS 6Gyrol® Fluid Drives


2 SIZES AVAILABLE (198 AND 212)198 - 1,500 TO 3,500 HORSEPOWER - 3,600 RPM212 - 3,000 TO 6,000 HORSEPOWER - 3,600 RPM

Howden Buffalo’s newest design the RE Class Gyrol Fluid Drive has been specificallydesigned to provide an economical alternative to Variable Speed Drives for applicationsthat require variable speed feed pumps, particularly boiler feed pumps. The use ofa Gyrol Fluid Drive can help extend the life of motors and load equipment (pumps,fans, etc.) by creating soft starts and allowing the motor to run at its designed speedwhile using the hydrodynamic principle of a fluid drive to vary the speed.It is the culmination of over 60 years experience in the design and manufacturing ofhydrodynamic speed control equipment. And with no obsolescence, no softwareupgrades and an unmatched reliability record, you’ll find that Gyrol Fluid Drives arean economical long-term investment in an increasingly disposable world.

• Up to 98% efficient and simple tomaintain and operate

• Robust design for years oftrouble-free operation

• Modular components for ease ofmaintenance and repair

• Can use normal starting torque motors

• Never requires software upgrades

• No harmonic issues

• Works well in harsh environments

• Anti-friction bearing for long life

• Rated from 1,500-6,000 HP

• Naturally torque-limiting

The RE Class 6Gyrol Drives can beoutfitted with a range ofaccessories that monitoroperating conditionsand provide speed andtemperature control.The split housing designallows the rotatingelement removalwithout disturbing thedrive mounting. It usesa direct-drive externaloil pump for both theworking and lubricationcircuits. This is moreefficient and reduces thedrive’s fixed losses. Itcan be equipped with aback up pump withoutincreasing the drive’sfootprint.

Note: We offer shell-and-tube orplate-and-frame exchangers as standardequipment for oil cooling duty.



Note: We offer shell-and-tube orplate-and-frame exchangers as standardequipment for oil cooling duty.

Class 7 GyrolFluid Drives are

widely used in powergeneration plants fordriving boiler feedpumps which are

direct-connected tomain turbine generator

shafts. Class 7 unitshave a shaft centerlineheight of 30 inches, to

match the height ofmain turbine shafts.


8 SIZES AND VARIATIONS(198-292 DUAL) 1,500 TO40,000 HORSEPOWER SPEEDS

TO 3,600 RPM•Herringbone-gear pump(hidden) supplies oil flowfor the working circuitand lubrication (sizes 198and 212).

• External sub-base mountedpumps (sizes 250 and larger)supply working circuit oil,lubrication and additional oilfor driven equipment,if needed.

• Ground bearing surfaces and mountinghubs have precision-fit, for trouble-freeoperation.

• Shafts are machined steel forgingsfor long life.

• Split housing permits removalof upper housing for inspectionand maintenance.

• Rotating assembly, impeller runner andcasing are machined from high-tensilealloy steel forgings providing maximumstrength.

•Rotating assembly, balancedboth statically and dynamically, fortrouble-free transmission of power.

• Push-pull scoop tube control mountson either side of unit, adapts easily toautomatic control.

• A high tensile, single-tipped scooptube provides stepless speed controlfor rotation specified.

• Holding brake assembly on outputshaft prevents wind-milling when thefluid drive is declutched and mainturbine is operating.

• Two double Kingsbury thrust bearingsabsorb both internal thrust and externalthrust from the turbine output shaft.


• Four Babbitt-lined, bronze-backedprecision sleeve bearings aredesigned for long life.


CLASS SELECTION GUIDECLA

SS2

Size Min RPM Max RPM Min HP Max HP126 750 1,800 2 75146 750 1,800 7.5 150171 750 1,800 10 350198 720 1,800 15 700231 600 1,800 15 1,250270 600 1,500 50 1,500315 600 1,200 100 1,500366 600 1,200 200 2,250

CLA

SS4

Size Min RPM Max RPM Min HP Max HP231 900 1,800 100 900270 720 1,200 100 800315D 1,800 1,800 600 1,250315S 1,500 1,500 800 1,500315 600 1,200 150 1,000366S 1,200 1,200 1,500 1,500366 514 900 150 1,250427S 1,000 1,200 1,250 1,750427 514 900 300 2,250497S 600 900 800 2,500497 514 720 700 2,500580 514 600 1,500 3,500

CLA

SS5

Size Min RPM Max RPM Min HP Max HP231 1,800 1,800 500 1,250270 1,800 1,800 1,250 2,500315S 1,800 1,800 1,250 2,500315 1,500 1,800 2,500 5,000366S 1,200 1,800 1,500 4,500366 100 1,500 1,500 4,500366H 1,500 1,500 3,500 4,500427S 100 1,800 2,000 4,500427S-H 1,200 1,800 4,500 10,000427 900 1,500 2,000 4,000427-H 900 1,200 2,500 6,250497D-H 1,800 1,800 10,000 14,000497S-H 1,200 1,200 6,000 8,500497 720 900 2,000 5,750497-H 600 1,200 4,000 14,000580 600 900 2,000 14,000

CLA

SS6

Size Min RPM Max RPM Min HP Max HP126 3,000 3,600 200 500146 3,000 3,600 400 1,000171 3,000 3,600 700 2,000198 3,000 3,600 1,500 3,000198 RE 3,000 3,600 1,500 3,500212 3,000 3,600 3,000 6,000212 RE 3,000 3,600 3,000 6,000231 3,000 3,600 5,000 8,000250 3,000 3,600 7,000 10,000270 3,000 3,600 9,000 15,000

250 Dual 3,000 3,600 13,000 20,000270 Dual 3,000 3,600 17,500 30,000292 Dual 3,000 3,600 30,000 40,000

CLA

SS7

Size Min RPM Max RPM Min HP Max HP198 3,000 3,600 1,500 3,000212 3,000 3,600 3,000 6,000231 3,000 3,600 5,000 8,000250 3,000 3,600 7,000 10,000270 3,000 3,600 9,000 15,000

250 Dual 3,000 3,600 13,000 20,000270 Dual 3,000 3,600 17,500 30,000292 Dual 3,000 3,600 30,000 40,000

Howden Buffalo Inc.800-327-8885

Gyrol® Fluid DriveDivision

313-931-4000 • 313-931-4464 (fax)[email protected]

Parts & Service800-458-3267 (24 hrs.)

gy´ro l fluiddrives - mc ilvaine company · class6 g´yrol®fluiddrives ...

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