Transcription
Internal Gear PumpsSeries QXReference: 100-P-000021-EN-23Issue: 03.20221/36
2/36100-P-000021-EN-23/03.2022Internal Gear Pump QX
Contents1234General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .51.1Product description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .51.2Advantages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .51.3ATEX compliant explosion protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5Technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .52.1General (deviating values according manufacturer's specification) . . . . . . . . . . . . . . . . . . .52.2Main characteristics for pressure range 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .62.3Main characteristics for pressure range 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .72.4Main characteristics for pressure range 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .72.5Main characteristics for pressure range 4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8Performance graphs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .93.1Noise level (Lp) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .93.2Efficiency ( ) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .93.3Operation with variable-speed drives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11Single pumps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12124.2Dimensions frame size 2 - 4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Dimensions frame size 5 - 8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4.3Pressure range 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .144.4Pressure range 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .144.5Pressure range 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .154.6Pressure range 4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .154.7Pressure range 4 with low-flow capability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .164.8Ordering code for single pumps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17Double pumps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .185.1Selection table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .185.2Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .195.3Ordering code for double pumps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28Triple pumps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .296.1Selection table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .296.2Ordering code for triple pumps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30Low-flow capability pump in combination with other QX-single pumps . . . . . . . . . . . . . . . . . . . . . .317.1Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .317.2Ordering code . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .324.1567Page100-P-000021-EN-23/03.2022Internal Gear Pump QX133/36
8Fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .339Operational reliability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3310Note . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3311Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3411.1Bolt-on valves - SAE J518 code 61 / ISO 6162-1 pattern . . . . . . . . . . . . . . . . . . . . . . . . . . . .3411.2Pipe flanges - high pressure type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3511.3Pipe flanges - low pressure type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .364/36100-P-000021-EN-23/03.2022Internal Gear Pump QX
1General1.1 Product description1.2 AdvantagesThe QX pumps are the 5th generation of Bucher internalgear pumps, which have proven themselves in thirty yearsof service around the world. Numerous improvements havebeen made to the straightforward and robust design.S Extremely long service lifeAdvances in the manufacturing process have made it poss ible without making higher demands on individual compo nents to build pumps that are considerably lighter and morecompact.S Volumetric efficiency up to 98%S Suitable for use with variable speed driversS Can be used with fire resistant fluids (HFB, HFC and HFD QXV), fuels, biodegradable and low-viscosity fluidsS Certifications by ATEX 2, ABS, DNV, GL, LR, NK, .S Low flow and pressure pulsationsA new tooth profile, conceived and optimised with the helpof CAE, has yielded another significant reduction in noiselevels. Large sealing areas result in higher efficiencies.The internal ring gear is supported by a hydrodynamic/hydrostatic lubrication film, which allows operation at lowviscosities or low and high speeds. QX pumps are thereforesuitable for use with variable speed drives, where they canprovide variable flow rates.1.3 ATEX compliant explosion protectionThe internal gear pumps QX are suitable for application inhazardous areas and complies with the followingguidelines:ATEX directive2014/34/EUgroupIIequipment category 3atmosphereGtemperature classT3 and T42II 3G Ex h IIC T3 Gc X-20 C Ta 80 CII 3G Ex h IIC T4 Gc X-20 C Ta 40 CTechnical data2.1 General (deviating values according manufacturer's specification)General characteristicsUnitDescription, ValueInstallation attitudeunrestrictedMounting method (standard)oval 2-hole flange to ISO 3019/1 (SAE): QX 3-6oval 2-hole flange to ISO 3019/2 (metric): QX 2 8Direction of rotationCW or CCWPump drive methodin-line, through a flexible couplingVolumetric efficiency vup to 98%FluidsHLP mineral oils to DIN 51524 Part 2,HFC fluids to VDMA 24317Maximum admissible level ofcontamination of the hydraulic fluidISO 4406 code 20/18/15Operating viscosityStarting viscositymm2/s10 100 *10 300 **other values on requestFluid temperature range CHLP-mineral oils -20 min. / 80 max. / HFC 50 max. range formax. long life cycle 30 60 (considering viscosity field)Inlet pressure maximumminimumbar1.5 absolute (without external drain connection)0.5 0.98 absolute (dependent on pump frame size andspeed, see example in section 3.3.2)Startup against pressurebarmax. 20 (other values on request)Seal material100-P-000021-EN-23/03.2022Internal Gear Pump QXNBR standard / FPM (Viton) option 095/36
IMPORTANT: The main characteristics are valid for hydraulic oils DIN 51524 with a viscosity of 20 50mm2/s.The operating pressure at the pump outlet side is specified also for fire-resistant fluids (HFC).12003000900300026002300230021001800 5)8008001800 6)8001750 6)800Mineral oil HFC Mineral oil 0135100Powerconsumption 4)[kW]3600intermittent 2)[bar]continuous[bar]Torque ,0184,0232,0293,0362,0472,0583,0722,0Minimum speed[rpm]Flow rate[l/min]1450 min-1 p 0 6,7159,7201,1248,4323,9400,1495,4Max. operating pressure at thepump outlet sideCodeMaximum speed[rpm]Displacementeffective 1)[cm3/rev]2.2 Main characteristics for pressure range 0,4126,0121,6120,51) Due to manufacturing tolerances, there may be slight variations in the displacement.2) Max. 20 second and not more than 10% of the duty cycle.3) Theoretical value at max. permitted continuous pressure for mineral oil.4) Theoretical value at max. permitted continuous pressures for mineral oil at n 1450 rpm.5) For speeds 1450 rpm, the inlet pressure of min. 0.95 bar absolute is required. For HFC application a second suction port is required.6) Max. speed only possible with a second suction port, see section 2.2.1.2.2.1Suction arrangements for pump types QX61 and QX81IMPORTANT: Minimum inlet pressure is 0.95 bar absolute with viscosity 10 100 mm2/s(other values on request).TypeSpeed 1500 rpmsuction heightSpeed 1800 rpmsuction heightup to 150 mmover 150 mmup to 150 mmover 150 5lllllllQX81-400llllll-QX81-500llll--l standard pump with one suction portll model with two suction portsAll pump types coded II can be used without the second suction port up to 1200 rpm.6/36100-P-000021-EN-23/03.2022Internal Gear Pump QX
15003400140032001200280010002500 5)2300 5)2000 5)1800 5)1750 5)1500 5)800800continuous[bar]intermittent 2)[bar]Mineral oil HFC Mineral oil 338417544672833Powerconsumption 4)[kW]3600Max. operating pressure at thepump outlet sideTorque ,1116,0146,0181,0236,0291,0361,0Minimum speed[rpm]Flow rate[l/min]1450 min-1 p 0 ,8100,5124,2161,9200,0247,7CodeMaximum speed[rpm]Displacementeffective 1)[cm3/rev]2.3 Main characteristics for pressure range 263,482,7102,1126,52.4 Main characteristics for pressure range 31)2)3)4)5)Minimum speed[rpm]Maximum speed[rpm]3600140034001100320090028008002500 5)2300 5)2000 5)1800 5)1750 5)1500 0QX83-200QX83-250intermittent 00350Powerconsumption[kW] 6,0146,0181,0236,0291,0361,0Max. operating pressure at thepump outlet sideTorque 479,8100,5124,2161,9200,0247,7Flow rate [l/min]1450 min-1p 0 barDisplacementeffective 39,149,362,078,196,5126,0155,7192,7Due to manufacturing tolerances, there may be slight variations in the displacement.Max. 20 second and not more than 10% of the duty cycle.Theoretical value at the max. permitted continuous pressure for mineral oil.Theoretical value at the max. permitted continuous pressures for mineral oil at n 1450 rpm.For speeds 1450 rpm, the inlet pressure of min. 0.95 bar absolute is required. For HFC application a second suction port is required.100-P-000021-EN-23/03.2022Internal Gear Pump QX7/36
2500 5)2300 5)2000 5)1800 5)1750 5)1500 5)800800Max. operating pressure at thepump outlet 585610571309Powerconsumption[kW] 4)CodeTorque 3)[Nm]Minimum speed[rpm]Maximum speed[rpm]Flow rate [l/min]1450 min-1p 0 barDisplacementeffective 1)[cm3/rev]2.5 Main characteristics for pressure range 364,080,599,5130,0160,5198,71) Due to manufacturing tolerances, there may be slight variations in the displacement.2) Max. 20 second and not more than 10% of the duty cycle.3) Theoretical value at the max. permitted continuous pressure for mineral oil.4) Theoretical value at the max. permitted continuous pressures for mineral oil at n 1450 rpm.5) For speeds 1450 rpm, the inlet pressure of min. 0.95 bar absolute is required.8/36100-P-000021-EN-23/03.2022Internal Gear Pump QX
3Performance graphsIMPORTANT:The performance graphs shown are valid for the specified pump models.For other pump sizes, contact Bucher Hydraulics GmbH.3.1 Noise level (Lp)measured to DIN 45635, Part 26, in Stuttgart University's low-echo noise measurement chamber:measurement distance 1 mspeed n 1500 rpmviscosity 42 mm2/sLp [dB(A)]Q [l/min]80720360180924623706011,56,1504010204060p [bar]304080120501002003007090180140280 320360*1102101251234Pressure range*Max. continuous operating pressure for pressure range 4 see section 2.53.2 Efficiency (h)measured at speed 1450 rpm, viscosity 42 mm2/s3.2.1Pressure range 13.2.1.1Volumetric efficiency3.2.1.2Hydromechanical efficiency100100QX81QX6190 %] 6080100 120 140 160 180 200 210p [bar]8020406080100 120 140160 180 200 210p [bar]intermittent operating pressure as afunction of displacement (see section 2.2)100-P-000021-EN-23/03.2022Internal Gear Pump QX9/36
3.2.2Pressure range 23.2.2.1Volumetric efficiency3.2.2.2Hydromechanical efficiency100100 %]8090 QX227070020 406080 100 120 140 160 180 200 220 240p [bar]20 4006080 100 120 140 160 180 200 220 240p [bar]intermittent operating pressure3.2.3Pressure range 33.2.3.1Volumetric efficiency3.2.3.2100Hydromechanical efficiency100 %]QX83QX63QX53QX43QX338090 %]90QX83QX63QX53QX43QX33QX2380QX2370050100150200p [bar]25030070350 400050100150200p [bar]250300350400intermittent operating pressure3.2.4Pressure range 43.2.4.1Volumetric efficiency3.2.4.2100Hydromechanical efficiency100QX84QX64 %]QX54QX44QX3480QX84QX6490QX54QX44 50 -23/03.2022Internal Gear Pump QX
3.3 Operation with variable-speed drivesIMPORTANT: The following main characteristics are to be understood as examples only. They arevalid only for the specified pump models and parameters. We would be very happy toadvice you on the layout of your drive. QX pumps with variable-speed drive all containan external drain port.3.3.1Typical loading cycle for a QX pump withvariable-speed drivePump QX53-063 with viscosity 20 mm2/s3.3.2Minimum pressure at suction port as afunction of speedPump QX53-063 measured: with viscosity 42 mm2/sp [bar], Inlet presure absolute6001,0n [min-1]0,90,8Continuous operation0,70,60,5020406080100 t [s]0,4Operation prohibited05001000150020002500350p [bar]3.3.33000n [rpm]Minimum speed as a function of pressurePump QX53-063 measured with viscosity 42 mm2/sp [bar]300020406080100 t [s]1250Intermittent operationon request20035150Q [l/min]30251002050Continuous operation015100200300400500n [rpm]10501020406080100 t [s]pressure-holding operationQ 0 l/min for up to 60 s100-P-000021-EN-23/03.2022Internal Gear Pump QX11/36
4Single pumps4.1 Dimensions frame size 2 - 4Frame size2Pressure rangeSuction port:to SAE J518 1)Pressure port:to SAE J518 1)Mounting:oval 2-hole flangeto ISO 3019/1 (SAE)ISO 3019/2 (metric)4-hole flangeISO 3019/2Shaft end: parallel,to ISO/R775 2)HousingWeight132345)6)14234123SG1“ thread 3)G1¼” thread 3)1½“PG½” thread 3)optional SAE J518 4)G¾” thread 3)optional SAE J518 4)1”A118132170B (SAE)-106146B (Metr.)100109140C91114N (SAE)-82,55 -0,05101,6 -0,05N (Metr.)63 h880 h8100 h8O8,58,510,5V667X (Metr.)9912Y (Metr.)85103125D20 j625 j632 00136kg667810101367671520701822271) Pipe flange dimensions, SAE J518 code 61 / ISO 6162-1.High pressure type up to 420 bar (see section 12.2), low pressure type for up to 16 bar (see section 12.3).2) For other shaft en
Internal Gear Pump QX 5/36 1 General 1.1 Product description The QX pumps are the 5th generation of Bucher internal gear pumps, which have proven themselves in thirty years of service around the world. Numerous improvements have been made to the straightforward and robust design. Advances in the manufacturing process have made it poss
