OIL-INJECTED SCREW VACUUM PUMP
OIL-INJECTED SCREWVACUUMPUMP
Pumping Speed 423\~5400m²/h
Motor Power5.5\~90kW
Vacuum Degree 30\~80Pa (A)
PRODUCT FEATURES
StrongerNegativePressure
Speciallydesignedoil-sealedscrewairendstructurereduces leakage,achievinghigherultimatenegativepressureandmore stable operation.
Energy Efficient
Compared towaterringpumps and Rootspumpswith the same vacuum degree, it saves approximately 20~30% in energy. The pumping speed remains almost constantregardless ofpressure changes.Additionally,it offers linear stepless variable frequency control from 30~100% reducing unnecessary power consumption during equipment operation.
High Intelligence
Integrateddesignwithallcomponentsinstalledwithinasingle enclosure,ensuring easymaintenance.
Plug&play
Automated control,simple operation,no need for dedicated personneltomonitor,reducinglabor costs.
EasyMaintenance
Simple daily upkeep with routine air compressor-style maintenance, lower failure rate compared to water ring pumps and rotary vane pumps,and eliminates wastewaterdischarge.
COMPONENT INTRODUCTION
Special inlet valve
Automaticallycontroltheopeningtoensuretheairend oilinjectionandlubricatingoilcirculation.Ultra-lowoil circuit loss,overallefficiencyimprovement.Normally opensolenoid valve control,automatic closingin emergency stop topreventoil injection.
Axialfan
Lowpower consumptionandfast heat dissipation. Stable and reliable, energy saving and environmental protection.
Integratedscrewairend
Integrated VFD
Directly driven by the motor,eliminating transmission losses,reducing transmission failure.PM&VFD control, quick response, high torque.lE5 motor energy efficiency standard, high efficiency.
Electricalcabinet withfullyintegrated inverter:no additionalengineering and installationrequired. Speciallyselecteddrivecomponents:parameter settingsforpreciseefficiency.Optimized component selection.Reduced installation costs.
Microcomputer controller Air filter
Integrated vacuumpumpcontrol system. Displays overall system performance status, proactively prompts maintenance information, fault and safety shutdown alarms.
Fully enclosedstructure,highfiltrationlevel,excellent pressure holding performance, and unique locking structure.Easy to disassemble and assemble,and easytomaintainandreplacethefilterelement.
Oil and gas seperator
Noiseattenuationenclosure
Adopting betterflowrate and structural design,the oil content is ≤3ppm.Easy to maintain.
Substantial noise reduction through sound-absorbing foam and sound reflection frommetal panels.Reduce thecostofnoiseattenuationequipmentforvacuum pump rooms.
PRODUCTADVANTAGES
Core technology of integrated screw vacuum pump
·OSV series energy-saving screw vacuum pumps adopt the newgenerationofscrewprofilesfromBAosl.Thescrewrotor profile accuracy isbetter thanthe industry's and operates under light load.
Theexceptionalintegratedscrewairendstructurefeatures direct motor drive,eliminating transmissionlosses and allowing you to achieve nearly 100% transmission efficiency!
With vector frequency control, the system responds swiftly, inteligently allocates current values, and delivers superior torque enhancement performance.
Performance comparison
| Water ring vacuum pump | Screwvacuumpump | |
| Vacuum pressure | 3300Pa Ultimate vacuum degree | 60Pa Ultimate vacuum degree |
| Environmental | Eachvacuum pumpmustbe equipped with independentwaterpipes and independent electric control box. Itisnecessary to equip with circulating waterpumps,coolingwatertowers,etc.to continuously replenish cooling water. | Highly integrated and intelligent,the frontendofthemachineisdirectly connected tothe vacuum pipe.The |
| In summer, the working fluid is kept at high temperature for a long time,and the workshopisfilled withwater mist,which acceleratesthecorrosionoftheironframe, various metal equipment, metal steel beams, etc. inside the workshop. In thefaceofsevereenvironmentalprotection requirements,additionalsewage treatment | machinecanbestartedandoperated byconnecting the power cord.No foundationorotherequipmentis required.Additionalpre-filterequip- mentisrequiredunderspecialoperat- ing conditions. | |
| Machine efficiency | The general efficiency is around 30%. The nominal standard of water ring vacuum pumpis15°℃watertemperatureand100% relative humidity. The maximum pumping speedof theintake air is generally only 60-80% of the nominal standard speed when the cooling water temperature is higher than 15°℃. | Thegeneralefficiencyisaround85%. Energysavingrateupto25%-50%. |
Full range of PM&VFD technology
· The OsV oil-injected screw vacuum pump uses an integrated permanent magnet variable frequency dedicated motor, which greatly improves the efficiency of the drive motor and thus achieves energy saving.
· The use of high-coercivity, high-temperature-resistant permanent magnets ensures no demagnetization at temperatures up to \rceil50°\mathsf C :
■ The design features an ultra-high torque, delivering twice the torque of conventional 3000 rpm permanent magnet motors.
·Stepless speed change, wide frequency speed regulation range, weak magnetic control is twice that of ordinary permanent magnet motor, easy to control by frequency conversion, good dynamic response performance, can quickly respond to large range of adjustments, and can also accuratelyadjustand controlvacuumdegree.
· Variable frequency regulation enables smooth startup, reducing the impact on the power grid.
** With ultra-premium energy efficiency, the motor achieves an efficiency of over 98% ,meeting the IE5 level as specified in IEC 60034-30-1:2014 《Variable Speed AC Motors》.
■High power factor of over 98% can reduce customer grid pressure, maintain grid quality, and reduce the apparent current of equipment.
ENERGY-SAVING APPLICATION
Coststructureof ordinary vacuum pump
Cost structure of screw vacuum pump
Production energyconsumption Purchase cost Maintenance cost Energy-savingcost
The BAOSl screw vacuum pump can maintain the set point pressure during operation and adjust its speed to meet the pressure requirement. In this case, the use of BAOsItechnology can achieve energy savings of more than \boxed{10}\boxed{1} compared to traditional technology.
The BAOSI screw vacuum pump is configured for maximum performance only when necessary. During rapid evacuation of the vacuum chamber or idle operation, the vacuum pump can reduce energy consumption by more than \boxed{5}\boxed{1}\boxed{1} comparedto standard operating modes,without theneed todeliver maximumperformance.
In nearly any production environment, the vacuum system does not need to provide peak performance throughout the entire production process. Whether during the process cycle, evacuation cycle, or machine idle time, the intelligent BAOSl screw vacuum pump delivers peak performance only when the process requires it, ensuring maximum reduction in energy consumption and maintenance costs.
PERFORMANCE SPECIFICATION
| Oil-injected screw vacuum pump | |||||||
| Model | pimension | diameter | diautletr | Weight | |||
| OSV420 | 5.5 | 423 | 30 | 915*830*1100 | DN65 | DN40 | 440 |
| OSV590 | 7.5 | 588 | 30 | 1060*980*1290 | DN80 | DN65 | 620 |
| OSV690 | 11 | 690 | 30 | 1200*1050*1192 | DN100 | DN80 | 800 |
| OSV880 | 15 | 876 | 30 | 1200*1050*1192 | DN100 | DN80 | 800 |
| OSV1100 | 18.5 | 1062 | 60~80 | 1402*1250*1390 | DN150 | DN100 | 1150 |
| OSV1300 | 22 | 1320 | 60~80 | 1402*1250*1390 | DN150 | DN100 | 1150 |
| OSV1600 | 30 | 1620 | 60~80 | 1680*1490*1492 | DN150 | DN100 | 1650 |
| OSV1800 | 37 | 1812 | 60~80 | 1680*1490*1492 | DN150 | DN100 | 1650 |
| OSV2600 | 45 | 2640 | 60~80 | 2860*1650*2114 | DN200 | DN150 | 3500 |
| OSV3200 | 55 | 3180 | 60~80 | 2860*1650*2114 | DN200 | DN150 | 3500 |
| OSV4500 | 75 | 4500 | 60~80 | 2910*2150*1720 | DN250 | DN200 | 4500 |
| OSV5400 | 90 | 5400 | 60~80 | 2910*2150*1720 | DN250 | DN200 | 4500 |
APPLICATION
NINGBOBAOSIENERGYEQUIPMENTCO.,LTD.
+86-574-88607352
www.cnbaosi-compressor.com
tradingdept@cnbaosi.com
No.55Juchao Road,Jiangkou Street, FenghuaDistrict,NingboCity,ZhejiangProvince,China
1stVersion,March2025 Ningbo Baosi Energy Equipment Co., Ltd.reserves the right of final interpretation of this brochure.




