SIHI High Vacuum Performance Single Stage Pump

1 SIHI high Vacuum Performance Single Stage Pump Mfg: SIHI Model: LPHR 55320 BN117010 Stock No. CCFP524. Serial No. 3393956 SIHI high Vacuum Performance Single Stage Pump. Model: LPHR 55320 BN117010. S/N: 3393956. Size: 2x2. For dry air and/or saturated air applications. Pump specifications: 15/25 hp, 1150/1750 rpm, 13 gpm. Inlets/outlets: (2) 2 in. dia. with 6 in. dia. flanges and (4) 3/4 in. dia. attachment holes with a center-to-center distance of 4-3/4 in. Overall dimensions: 37 in.

2 L x 15-1/2 in. W x 21-1/2 in. H. SIHIPERFORMANCE AND RELIABILITYV acuumMore than 29 Hg Vacuum attainable with a Single pump VacuumAchievable by incorporating other Sterling SIHI SafetyProvided by the low temperature rise of the Liquid RingPrinciple ensuring the safest compression of hazardousand explosive Liquid HandlingLiquid slugs and condensables pass through the pump withoutdamage and only a momentary reduction in Economical LifeElimination of internal metallic

3 Contact minimizes maintenanceand increases life - only one moving part and no internallubrication Vibration & Noise LevelsAbsence of reciprocating parts assures quiet and low vibrationoperation - eliminating the need for special Starting TorquePermits considerable savings in electrical starting andcontrol FlexibilityModels available in a variety of shaft seals and materialsincluding Cast Iron, Bronze, Stainless Steels, Hastelloysand illustration is intended to depict theoperating principle of the Sterling SIHI liquid ring pump only and should notbe considered for engineering detailsof a round pump body (A), a shaft mounted impeller (B) is positioned at a point eccen-tric to the centerline of the pump body.

4 The centrifugal action of the rotating impellerforces the service liquid introduced via channel (D) towards the periphery of the pumpbody forming the liquid ring (C).When pumping action is achieved, the gas mixture being handled is introduced to theimpeller through the suction port (H), in the intermediate plate (E), causing a Vacuum atthe pump suction. The gas mixture fills the impeller cavity between the inside diameter ofthe liquid ring and the root of the impel-ler blade.

5 As the impeller rotates,the impeller blade immersionin the liquid ring increasesreducing the volumebetween the liquidring and the rootof the impellerblade. The re-sult is the com-pression of thegas mixtureuntil it reachesthe dischargeport (J), locatedin the intermediateplate (K). The gasmixture exits through thedischarge ACTING LIQUID RING PUMPSD uring the compression cycle heat isbeing imparted to the liquid ring. In or-der to maintain a temperature below thevapor point of the service liquid, coolingmust be applied.

6 Cooling is achieved bycontinuously adding a cool supply ofservice liquid to the liquid ring. Theamount of service liquid added is equalto that discharged through the dischargeport (J) together with the compressedgas mixture. The gas mixture and serviceliquid is eventually passed through thepump discharge for Gas Mixture= Service Liquid= Gas & LiquidBDECKAJHPump Suction(Gas Mixture)PumpDischarge(Gas & Liquid)ServiceLiquid InletAccessories for the above service liquid arrangements can be provided bySterling SIHI in completely piped, assembled and tested factory RECIRCULATIONONCE THROUGHTOTAL RECIRCULATIONPump SuctionInletCheck ValveCompoundGaugeIsolatingValveRegulati ngValveFlow RegulatingValveSolenoid Valve(normally closed)

7 Y - StrainerIsolating ValveService LiquidPartialRecirculatingPipingOverflow SeparatorSystem VentMPISPump SuctionInletCheck ValveCompoundGaugeIsolatingValveFlow RegulatingValveSolenoid Valve(normally closed)Y - StrainerIsolating ValveService LiquidTo drainSeparatorPISMS ystem VentPump SuctionInletCheck ValveIsolatingValveCompoundGaugeFlowRegu latingValveHeat ExchangerCoolant SupplyCoolant ReturnY-StrainerIsolating ValveGaugeGlassMPILIO verflowSystem VentSeparatorUsed where service liquid is plentiful andcontamination is not a initial costUsed where service liquid is available andcontamination problems are initial costReduced service liquid consumptionUsed where gases and

8 Liquids are toxicor hazardous, and when environmentalcontamination is a liquid contained andseparated from nonhazardouscoolant systemsLow service liquid usageAllows recovery of condensableinlet gasesSERVICE LIQUID ARRANGEMENTSV acuum in inches NumberAbsolute Pressure in Inches (Inlet x Outlet Size)Absolute Pressure in mm measured in inchesSpeedHorsepowerCFMCFMCFMCFMCFMCFMC FMCFMM edium Vacuum Performance (Dry Air)AverageServiceLiquidFlowUSGPM* Horsepower given is for motors with service factor only.

9 Use next larger size with service factor data represents average values for pumps in standard material of construction discharging against atmospheric pressure at sea level. Capacity in cubic feet per minute at inlet pressure for air at 20 C(68 F) and using 15 C (59 F) water as the service liquid. When handling 100% saturated air see Performance data on following 20103(1 x 1 )3500* 20105(1 x 1 ) 20107(1 x 1 ) 3404(1 x 1 )115022020191710---31750340 4040 404032 - - 3 LPH 3408(1 x 1 )115034040383423---317505757575757465--3 LPH 40412(1 x 1 ) 40517(2 x 2)175010164167167167163147105-5 LPH 50518(2 x 2 )1150* 50523(2 x 2 )115010182186187184173142907071750203153 253303273182882502357 LPH 60520(4 x 4)

10 115015225232235233218175120-714502029530 0305305300276225175717502536536536536235 23222672207 LPH 60527(4 x 4)115020283290295295290255150-8145025395 3953953953903502852258175040470470470470 4564153503008 LPH 70123(4 x 4)8803045545545545544037528525910975*305 0250250250248341033029510103040540540540 540520440340300101150*406006006006005804 8538030510 LPH 70530(5 x 5)8804059059059059057553545036515975*406 8568568567565559048541015103050735735730 7206906255204201511506082582081279576068 554543015 LPH 70540(5 x 5)88050850850850850830770630500179756091 3913913913910845700600171030609859859859 8598091077066017115075112011201120112010 95100082570017 LPH 80540(8 x 8)70075115311881200119011371025918875277 3575123512581275125512201108980940278801 001437147014751466142513201168112027 LPH 80553(8 x 8)