The multi-stage pump is mainly composed of stator, rotor, bearing and shaft seal
1. The stator part of multistage pumps are mainly composed of suction section, middle section, discharge section and guide vane, and each section is clamped by tightening bolts to form a working room. centrifugal multistage pumps is generally horizontal suction and vertical upward discharge; when it is used for oilfield water injection, the centrifugal multistage pumps inlet and outlet are vertical upward. The inlet and outlet of centrifugal multistage pumps are vertical upward.
There has two types multistage pumps,one is horizontal multistage pump,the other is vertical multistage pump,today let us talk abou the horizontal multistage pumps.
Inlet oressure of the centrifugal multistage pumps is less than 0.6Mpa.The centrifugal multistage pumps are used for transfering the liquid temperature below 80 degree.If higher than this ,high pressure centrifugal multistage pumps will be recommended.Model selection of centrifugal multistage pumps:
| Model selection of centrifugal multistage pumps | |||||||
| 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. Email us: miya@modopump.cn | |||||||
Today we got an inquiry from Ecuador,specification as follows:
outlet of the centrifugal multistage pump is 2inch,vertical height 400,horizontal transfer distance 1000m,Please check the sketch:
Based on the sketch of the centrifugal multistage pump required,we selected the suitable centrifugal multistage pump :
--Model:D12-50*9
--Capacity:8m3/h
--Head:486m
--Shaft power:26
--Diesel engine power:34kw
The diesle engine of centrifugal multistage pumps we recommended is top brand in China,there has distributores in many countries.So you do not worry about the maintanance.
This is the working site of centrifugal multistage pump at work site.
If you have similar application,please email us: