2014年5月22日星期四

Single-stage single-suction centrifugal pump


Old pump models BA, B -type single-stage single-suction centrifugal pumps, 1980s , the
country in accordance with international standards and Irrigation Machinery actual
situation, centrifugal replacement product development work www.dongfeng-motor.com and
production of type IB , IQ -type single- stage centrifugal products have been listed as
national professional standards and industry standards. Single-stage single-suction centrifugal pump, water enters one side by the axial impeller , the impeller is only one , so called single-stage single-suction centrifugal pump. Its characteristics are compared with the mixed-flow pump , axial flow , high head , flow is small , simple structure , easy to use .

IQ -type single-stage single-suction centrifugal pump ( also known as light and small
centrifugal pump ) is against the 9v motor country 's national conditions
and meets the user made ? high voltage generatorsimple structure, light weight, low price , good performance and convenience while supporting the requirements of the design , a total of 84 kinds of products , divided 3 derived series , 413 specifications .

( 1 ) performance range of 50 to 200 mm diameter pump , flow 12.5 to 400 m3 / h , head 8 to
125 m , matching power with diesel engines Direct , belt drive, motor direct-coupled power
1.1 to 110 kilowatts , speed 1450 ~ 2900 rev / min .

( 2 ) Structure type light small axial suction centrifugal pump is single stage single
suction centrifugal pump suspension , the pump door, exports up in the center , the back
cover is press-fit type, bearing a direct connection with the pump body , pump foot located
below the pump , the bearings with 6v electric motorgrease lubrication , seal into soft packing , mechanical seals, rubber seals three. Impellers are closed , the drive coupling drive and belt drive is divided into two kinds. Pump impeller shift: from the pump inlet direction, steering wheel clockwise
when the pump and diesel direct-drive , counterclockwise . Pump ac electric
motorsoutlet can be equipped with hand pumps, foot valve can be removed to reduce
water loss , and make self-priming pump .

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