Series 12D Three Screw Pump - Brochure

ROTARY SCREW PUMPS12D SERIESTHREE SCREW PUMPSThe reliable pump peopleTM106118137187275350312250218156 200400600800100012001400400P800 1200 1600 2000 2400 2800 3200 3600 40005010015020025030035040050 HZ:60 HZ:275E*312P*350G*350P*218LGPMRPM9608701150 1750 35001450 2900LITERS PER MINUTEPerformance Shown at 2000 PSID (138 BAR), 200 SSU (43 CST)*Bi-metal construction only12D-400P on crude oil pipeline service in Alberta, Canada at 1440 PSIG (99 BAR)On the cover...12D-218 pumptypical for sizes 218-400shown with standard (top) inletposition. Outlet socket weldadapter is included with pump.12D-218 on hydraulic service12D-137 pump on compressorgas sealing serviceImo Series 12D PumpShown above: 12D-118 typical of sizes 106 through 187POWER ROTORSHAFTSINGLE, EXTERNAL,PERMANENTLY GREASEPACKED BALL BEARINGCASE HARDENED THREADGROUND SCREWS FORDURABLE OPERATIONRUGGED DUCTILE IRONCASING, STEEL, AVAILABLEAS AN OPTION IN MOST CASESIDLER ROTOR BALANCECUP – NEGATES THEEFFECT OF DISCHARGEPRESSURE ON IDLERROTOR AXIAL THRUSTINLET ROTATABLEIN 90° INCREMENTSFOR EASE OF PIPINGREPLACEABLE ROTORHOUSINGS FOR EASE OF REPAIRHARDENED BALANCE PISTON – NEGATESTHE EFFECT OF DISCHARGE PRESSUREON POWER ROTOR AXIAL THRUSTIDLER ROTORSSINGLE MECHANICALSEAL VENTED TOINLET PRESSURECasing High shock capacity ductile (nodular) iron. Cast steel optional, sizes 118-218Rotor Housing Pearlitic gray iron, sizes 106-187. Bronze, sizes 218-up. Special bimetallic housingsavailable in some sizes for low viscosity, high pressure services.Power Rotor Alloy steel, nitride hardened and thread groundIdler Rotors Pearlitic gray iron, hardened and thread ground, sizes 106-187Alloy steel, hardened and thread ground, sizes 218-upGaskets Cellulose and non-asbestos fiberShaft Seal & Type B: Buna N bellows mechanical seal, Buna N O-rings and standard external, perma-nently grease packed, deep groove ball bearing – recommended for distillate fuels andlubricating oil or hydraulic fluids.Type H: Positive drive mechanical seal, Viton O-rings and external high temperature,permanently grease packed, deep groove ball bearing.Accessories Completely mounted pump/driver assemblies with baseplates, ANSI RF spool pieces builtto order are available.Outlet Pressure 1500 PSIG (103 BAR) maximum for distillate & residual fuels and crude oils2200 PSIG (152 BAR) for lube, seal and hydraulic fluids. Minimum recommended differ-ential pressure is 40 PSI (2.8 BAR) when viscosity > 100 ssu.Inlet Pressure Type B & H: 75 PSIG (5 BAR) maximum, distillate fuel, lube- sizes 106-18750 PSIG (3 BAR) maximum, distillate fuel, lube- sizes 218-400Type H: 40 PSIG (2.7 BAR) maximum, residuals and crude oil- sizes 106-18710 PSIG (0.7 BAR) maximum, residuals and crude oil- sizes 218-400Viscosity 33 SSU (2.0 CST) minimumType B: 3000 SSU (650 CST) maximum (consider cold start)Type H: Viscosities above 3000 SSU (650 CST)Temperature Type B: 0 to180°F (-18° to 82°C) Type H: 0 to 250°F (-18 to 121°C)Speed See curve termination for maximum speed. Do not exceed 1800 RPM when pumpingresidual fuels or crude oil due to the presence of abrasives and contaminants.Drive Direct only. Magnetic drive also available to 200 HP at 3500 RPM.Rotation Clockwise facing pump shaft standard. Consult Imo for counterclockwiseMounting May be foot mounted in any orientation. Flange mounting optional for vertical installations.Filtration Inlet strainers are required to keep contaminants and abrasives out of the pump and mustbe selected in consultation with the strainer vendor to prevent pump starvation. Normally,60 mesh (0.01 inch- 238 micron) for light and 1/8-3/16 inch (3-5mm) openings for heavyoils are recommended. Return line filters for closed loop systems also recommended.BearingSpecificationsSeries 12D Imo pumps are intended for relatively high pressure service on petroleum or similar viscosityliquids. Typical applications include crude oil pipeline service, fuel atomization for burning in a steamboiler, fuel injection for combustion gas turbines, fluid power service on hydraulically operated machin-ery, gas sealing in centrifugal compressors and hydrostatic bearing support.These pumps are hydraulically balanced in both the axial and radial directions which eliminates bearingloads due to discharge pressure. The single bearing is external to the liquid pumped and does not relyon the lubricating qualities of the pumped liquid. The single mechanical seal is exposed only to inletpressure. Very low airborne noise levels are normal for Imo three screw positive displacement pumps asare high operating efficiencies and non-pulsating delivery of flow.INLET POSITION NO. 2INLET POSITION NO. 1CLOCKWISEROTATIONSTANDARDPOSITIONLWH106 THRU 187LWH218 AND UPB – OUTLET – SOCKET WELDB – OUTLET – SOCKET WELDCLOCKWISEROTATIONA – INLET – SOCKET WELDSTANDARDPOSITIONA – INLET – 150# ANSI5-300 GPM (19-1135 L/M) Pressure to 2200 PSIG (152 BAR)??????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????SIZE A B H L W WEIGHTINCH MM INCH MM INCH MM INCH MM INCH MM LBS. KG106 1 25.4 1 25.4 6.8 171.5 25 635 6 152.4 71 32.2118 1 1/2 38.1 1 25.4 7.0 177.8 26 660.4 6 1/4 158.8 85 38.5137 1 1/2 38.1 1 25.4 7.3 184.2 30 760.4 6 1/2 165.1 103 46.7156 2 50.8 1 1/2 38.1 7.8 196.9 34 863.6 7 177.8 140 63.5187 2 50.8 1 1/2 38.1 8.3 209.6 38 965.2 8 1/2 215.9 193 87.5218 2 1/2 63.5 2 50.8 9.5 241.3 50 1270.0 10 254.0 298 135.1250 3 76.2 2 1/2 63.5 10.9 276.2 55 1397.0 11 279.4 408 185.0275 3 76.2 3 76.2 12.3 311.2 59 1498.6 11 279.4 538 244.0312 4 101.6 3 76.2 12.9 327.0 65 1651.0 12 304.8 649 294.3350 5 127.0 3 76.2 15.2 385.8 72 1828.8 13 330.2 950 430.8400* 6 152.4 4 101.6 19.2 487.7 74 1879.6 14 355.6 1125 510.2DATA NOMINAL REQUEST CERTIFIED DRAWING FOR CONSTRUCTION *1500# ANSI DISCHARGE© 1998 Imo Pump All rights reserved.Quality Management SystemBulletin 12D-98Imo Pump1710 Airport RoadPO Box 5020Monroe, NC USA28111.5020tel 704.289.6511fax 704.289.9273email IMOPUMP@VNET.NETweb WWW.IMO-PUMP.COMImo Pump Sales OfficesTMCalgaryImo Pump5918 5th Street, S.E.Unit 14Calgary, AlbertaCanada T2H 1L4tel 403.253.7491fax 403.252.9833New OrleansImo Pump2637 Edenborn AvenueSuite 304Metairie, LA 70002tel 504.888.3333fax 504.888.3337HoustonImo Pump11811 N. FreewaySuite 190Houston, TX 77060tel 281.448.1337fax 281.445.2316TorontoImo Pump6750 Davand DriveUnits 9/209Mississauga, OntarioCanada L5T 1L8tel 905.564.3344fax 905.564.3577PhiladelphiaImo Pump515 Stump RoadSuite 222North Wales, PA 19454tel 215.393.7400fax 215.393.7622 DOC: BROCHURE: BR00012D REV 00 5-9-2006 cover: