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Roland magnetic pump efficiency comparison

  • Categories:Industry News
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  • Time of issue:2020-04-02
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(Summary description)Inthesmallpowerrange,theRolandmagneticpumphasanefficiencyofabout8-12%higherthancomparableordinarymagneticpumpsandshieldedelectricpumps;itisabout2%lowerthanthemechanicalsealpump,andtheefficiencywhenitdeviatesfromtheBEPpointbyhalfItwillbeabout6%lower. TheoverallefficiencyofRolandhigh-powermagneticpumpisbasicallythesameasthatofcomparablemechanicalsealpump. (Explanation):Theslidingbearingandthemagneticcouplinginthemagneticpumpproducefrictionloss,butthelossvalueisarelativelyconstantamount.WhenrunningatasmallflowawayfromtheBEPpoint,theshaftpowerdecreases,andtheratiooffrictionlosstoshaftpowerincreasescomparedtotheBEPpoint.Whendrivingwithhighpower,theratioisverysmallandcanbeignored.

Roland magnetic pump efficiency comparison

(Summary description)Inthesmallpowerrange,theRolandmagneticpumphasanefficiencyofabout8-12%higherthancomparableordinarymagneticpumpsandshieldedelectricpumps;itisabout2%lowerthanthemechanicalsealpump,andtheefficiencywhenitdeviatesfromtheBEPpointbyhalfItwillbeabout6%lower. TheoverallefficiencyofRolandhigh-powermagneticpumpisbasicallythesameasthatofcomparablemechanicalsealpump. (Explanation):Theslidingbearingandthemagneticcouplinginthemagneticpumpproducefrictionloss,butthelossvalueisarelativelyconstantamount.WhenrunningatasmallflowawayfromtheBEPpoint,theshaftpowerdecreases,andtheratiooffrictionlosstoshaftpowerincreasescomparedtotheBEPpoint.Whendrivingwithhighpower,theratioisverysmallandcanbeignored.

  • Categories:Industry News
  • Author:
  • Origin:
  • Time of issue:2020-04-02
  • Views:0
Information

In the small power range, the Roland magnetic pump has an efficiency of about 8-12% higher than comparable ordinary magnetic pumps and shielded electric pumps; it is about 2% lower than the mechanical seal pump, and the efficiency when it deviates from the BEP point by half It will be about 6% lower.

 

The overall efficiency of Roland high-power magnetic pump is basically the same as that of comparable mechanical seal pump.

 

(Explanation): The sliding bearing and the magnetic coupling in the magnetic pump produce friction loss, but the loss value is a relatively constant amount. When running at a small flow away from the BEP point, the shaft power decreases, and the ratio of friction loss to shaft power increases compared to the BEP point. When driving with high power, the ratio is very small and can be ignored.

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Dalian Roland Pump Co., Ltd

Factory Address: Beihai Industrial Park, Houmu Village, Yingchengzi Street, Ganjingzi District, Dalian City office (marketing): Room 404, No. 9 Chengren Street, Shahekou District, Dalian City (Yindu Building)
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Fax:0411-84620048
Website:
http://www.dlb.cn
Email:sales@dalian-pumps.com

 

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