Centrifugal multistage pump is a kind of centrifugal pump which is composed of the inlet and outlet section and the middle section. The centrifugal pump also called high pressure multistage pump.
centrifugal multistage pumps photo:
Speficication of centrifugal multistage pump:
--Model:D155-30*10
--Capacity:155m3/h
--Head:300m
--Shaft power:168kw
--Efficiency:75%
--Electric motor power:220kw
--(NPSH)r:3.9m
Our client from Australia ordered 7 pieces of this centrifugal multistage pump for the mining usage.Specification of the centrifugal multistage pump:
Specification of centrifugal multistage pump | |||
Capacity | 3.75-1000m3/h | NPSH | 2-7m |
Head | 49-1500m | Efficiency | 35%-90% |
Frequency | 50Hz or 60Hz are available | Impeller dia. | 146-275mm |
Shaft seal | Packing gland/mechanical seal | Type: | Multistage pump |
Speed | 1480-2950rpm | Power | 10-4500kw |
Model selection of centrifugal multistage pump | |||||||
Model | Capacitity | Head | Speed | Motor power | Impeller dia. | weight | |
m3/h | L/s | m | r/min | kw | mm | kg | |
D6-50*2 | 6.3 | 1.75 | 100 | 2950 | 11 | 198 | 140 |
D6-50*12 | 6.3 | 1.75 | 600 | 2950 | 55 | 198 | 340 |
D25-50*3 | 25 | 6.94 | 150 | 2950 | 80 | 196 | 220 |
D25-50*12 | 25 | 6.94 | 600 | 2950 | 110 | 196 | 409 |
D46-50*12 | 46 | 12.78 | 600 | 2950 | 160 | 210 | 475 |
D85-67*9 | 85 | 23.6 | 603 | 2950 | 250 | 235 | 1840 |
D120-50*2 | 120 | 33.3 | 100 | 2950 | 55 | 213 | 640 |
D120-50*9 | 120 | 33.3 | 450 | 2950 | 220 | 213 | 1200 |
D155-67*9 | 155 | 43.1 | 603 | 2950 | 450 | 235 | 1800 |
D360-40*10 | 360 | 100 | 400 | 2950 | 630 | 360 | 2550 |
D580-70*10 | 580 | 161.1 | 700 | 2950 | 1800 | 473 | 4120 |
D720-60*9 | 720 | 200 | 540 | 2950 | 1600 | 450 | 3900 |
We just list some models,please email us for more specifications.miya@modopump.cn | |||||||
As for the drive method of the centrifugal multistage pump,could be electric motor driven and diesle engine driven.
It depends on your working site,if no electric power,diesel engine driven centrifugal multistage pump
will be recommended.Look the photo of centrifugal multistage pump working site:
Here are some points during the usage of the centrigual multistage pump,and we should make good maintainance of the centrifugal multistage pump to make the multistage a more durable life.miya@modopump.cn
(1) check whether the pipeline and joint of centrifugal multistage pump are loose. Turn the centrifugal multistage pump by hand to see if it is flexible.(2) add bearing lubricating oil into the bearing, observe that the oil level shall be at the center line of the oil mark, and the lubricating oil shall be replaced or supplemented in time.(3) screw out the water plug of the centrifugal multistage pump body, and fill the water (or slurry).(4) close the gate valve, outlet pressure gauge and inlet vacuum gauge of the outlet pipe of centrifugal multistage pump .(5) jog the motor and try to see whether the rotation direction of the motor of centrifugal multistage pump is correct.(6) if the centrifugal multistage pump is out of service for a long time, it is necessary to disassemble the pump completely, dry the water, and coat the rotating parts and joints with grease.(7) try to control the flow and head of the centrifugal multistage pump within the range indicated on the label, so as to ensure that the high pressure multistage pump operates at the highest efficiency point, so as to obtain the maximum energy saving effect.
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